吉林唯美饲料新闻网 http://tiyu88bet.com/yangzhi/最專業的飼料廠家吉林唯美饲料新闻网 http://tiyu88bet.com/yangzhi/post/118.html<p><span style="font-size: 16px;">牛進食飼草</span><a href="http://tiyu88bet.com/" target="_self" style="font-size: 16px; text-decoration: underline;"><span style="font-size: 16px;"><strong>牛飼料</strong></span></a><span style="font-size: 16px;">速度快,一般飼料不經充分咀嚼便匆匆到達胃中。 因此對牛胃要求與豬、馬、兔等家畜的胃不同,不僅要容積大,而且構造 和功能也要與單胃家畜的胃不同。牛胃正是適應了這種特點,它由瘤 胃(俗稱“草包”)、網胃(又叫“蜂巢胃”)、瓣胃(俗稱“百葉肚”)、皺胃(又 稱真胃或腺胃)4部分組成。前3個胃無腺體組織分布,不分泌胃液,主 要起貯存食物、水和發酵分解粗纖維的作用,一般統稱為前胃。皺胃內 有腺體分布,可分泌胃液,與前胃對照,稱為后胃。牛口腔內攝入的飼 料經初步咀嚼后由咽進入瘤胃,飼料先在瘤胃內和水及唾液混合,被揉 磨、浸泡、軟化、發酵,然后再進入后胃。推薦閱讀文章;<a href="http://tiyu88bet.com/niusiliao/134.html" target="_self"><strong>小牛犢的飼料配方</strong></a></span></p><p><span style="font-size: 16px;">(―}瘤胃</span></p><p><span style="font-size: 16px;">瘤胃呈橢圓形,是成年牛4個胃室中最大的一個,占據整個腹腔的 左半側和右側下半部。瘤胃前后稍長,左右稍扁,前端與后端有凹陷的 前溝和后&#39;溝,左右側面有較淺的縱溝,在瘤胃壁內面與這些溝對應部位 為肌柱圍成環狀,將瘤胃分成背囊和腹囊兩大部分。背囊和腹囊前后 兩端,由于前后溝很深,這樣就形成了 4個囊區:前背盲囊、前腹盲囊、 后背盲囊、后腹盲囊。</span></p><p><span style="font-size: 16px;">飼料在瘤-中停留20?48 h,相當于整個消化過程的1/2時間(飼 料在消化道停留的總時間為40?70 h)。瘤胃每50?60 s收縮一次。</span></p><p><span style="font-size: 16px;">瘤胃壁由黏膜層、肌肉層及漿膜層構成,黏膜表面有無數個指狀突 起,稱乳頭狀突起。這些乳頭狀突起增加了胃壁與食糜的接觸面積和 對發酵終產物(揮發性脂肪酸和氨)的吸收。瘤胃使牛能夠大量利用植</span></p><p><span style="font-size: 16px;">物細胞壁。</span></p><p><span style="font-size: 16px;">網胃是位于膈頂后方與瘤胃前方的一個囊狀消化器官。賁門(食 道和瘤胃背囊交界&amp;)和瘤-網胃皺褶(位于腹囊內)將網胃與瘤胃隔 開。網胃約占4胃總容積的5%,胃壁黏膜形成許多網格狀皺褶,形似 蜂巢,并布滿角質化乳頭,又稱蜂巢胃。</span></p><p><span style="font-size: 16px;">隨著網胃的有力收縮,瘤-網皺褶移位,從而將網胃內的消化物推 向上方進入瘤胃,這一過程隨瘤胃肌肉收縮反復。同時,在這一過程中 網-瓣口打開,細小濃稠的消化物流人瓣胃。而粗大稀疏的消化物流回 瘤胃腹囊。</span></p><p><span style="font-size: 16px;">推薦閱讀文章;<a href="http://tiyu88bet.com/niusiliao/132.html" target="_self"><strong>育肥牛飼料配方</strong></a></span></p><p><br/></p>Tue, 29 Aug 2017 19:12:16 +0800吉林唯美饲料新闻网 http://tiyu88bet.com/yangzhi/post/117.html<p style="text-indent:24px"><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">羔羊與育成羊的營養需要</span></span></p><p style="text-indent:24px"><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">哺乳期的羔羊是一生中生長發育強度最大而又最難飼養</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">的一個階段,稍有不慎不僅會影響羊的發育和體質,還會造成</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">羔羊發病率和死亡率增加,給養羊生產造成重大損失。羊從出</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">生到</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px">L5</span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">歲,肌肉、骨骼和各器官組織的發育較快,需要沉積</span></span><span style="font-family: MingLiU_HKSCS; font-size: 16px;">大量的蛋白質和礦物質,尤其是初生至</span><span style="font-family: MingLiU_HKSCS; font-size: 16px;">8月齡,是羊生長發育</span><span style="font-family: MingLiU_HKSCS; font-size: 16px;">最快的階段,對營養的需要量較高。羔羊在哺乳前期</span><span style="font-family: MingLiU_HKSCS; font-size: 16px;">(〇</span><span style="font-family: MingLiU_HKSCS; font-size: 16px;">?8</span><span style="font-family: MingLiU_HKSCS; font-size: 16px;">周齡)主要依靠母乳來滿足其營養需要,母乳充足時羔羊發育</span><span style="font-family: MingLiU_HKSCS; font-size: 16px;">好、增重快、健康活潑。母乳可分為初乳和常乳,母羊產后第</span><span style="font-family: MingLiU_HKSCS; font-size: 16px;">一周內分泌的乳叫做初乳,以后的則為常乳。初乳濃度大,養</span><span style="font-family: MingLiU_HKSCS; font-size: 16px;">分含量高,羔羊出生后,要盡快讓羔羊吃上母羊的初乳,初乳</span><span style="font-family: MingLiU_HKSCS; font-size: 16px;">里含有免疫物質,有增強體質、抵抗疾病和排出胎糞等很重要</span><span style="font-family: MingLiU_HKSCS; font-size: 16px;">的作用。而后期</span><span style="font-family: MingLiU_HKSCS; font-size: 16px;">(9</span><span style="font-family: MingLiU_HKSCS; font-size: 16px;">?16周齡</span><span style="font-family: MingLiU_HKSCS; font-size: 16px;">),</span><span style="font-family: MingLiU_HKSCS; font-size: 16px;">必須給羔羊單獨補飼。哺乳</span><span style="font-family: MingLiU_HKSCS; font-size: 16px;">期羔羊的生長發育非常快,每千克增重僅需母乳</span><span style="font-family: MingLiU_HKSCS; font-size: 16px;">5kg</span><span style="font-family: MingLiU_HKSCS; font-size: 16px;">左右。羔</span><span style="font-family: MingLiU_HKSCS; font-size: 16px;">羊斷奶后,日增重略低一些,在一定的補飼條件下,羔羊</span><span style="font-family: MingLiU_HKSCS; font-size: 16px;">8</span><span style="font-family: MingLiU_HKSCS; font-size: 16px;">月齡前的日增重可保持在100?</span><span style="font-family: MingLiU_HKSCS; font-size: 16px;">200g</span><span style="font-family: MingLiU_HKSCS; font-size: 16px;">左右。羊增重的可食成分</span><span style="font-family: MingLiU_HKSCS; font-size: 16px;">主要是蛋白質(肌肉</span><span style="font-family: MingLiU_HKSCS; font-size: 16px;">)</span><span style="font-family: MingLiU_HKSCS; font-size: 16px;">和脂肪。在羊的不同生理階段,蛋白質</span><span style="font-family: MingLiU_HKSCS; font-size: 16px;">和脂肪的沉積量是不一樣的,例如,體重為</span><span style="font-family: MingLiU_HKSCS; font-size: 16px;">10kg</span><span style="font-family: MingLiU_HKSCS; font-size: 16px;">時,蛋白質</span><span style="font-family: MingLiU_HKSCS; font-size: 16px;">的沉積量可占增重的35%;體重在50?</span><span style="font-family: MingLiU_HKSCS; font-size: 16px;">60kg</span><span style="font-family: MingLiU_HKSCS; font-size: 16px;">時,此比例下降</span><span style="font-family: MingLiU_HKSCS; font-size: 16px;">為</span><span style="font-family: MingLiU_HKSCS; font-size: 16px;">10%左右,脂肪沉積的比例則明顯上升。推薦閱讀文章;<a href="http://tiyu88bet.com/yangsiliao/539.html" target="_self"><strong>養羊的飼料配方</strong></a></span></p><p style="text-indent:24px"><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">到了育成階段,主要依靠<a href="http://tiyu88bet.com/" target="_self"><strong>羊飼料</strong></a>來滿足生長發育的營養需</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">要,這一階段的增重雖然沒有哺乳期那樣迅速,但是在</span>8月齡</span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">以前,如果飼養條件好,山羊的日增重仍可達</span>150?</span><span style="font-family: MingLiU_HKSCS;font-size: 16px">200g。</span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">山</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">羊在生長發育階段的可塑性很大,營養充足與否直接影響到山</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">羊成年后的體型與體重,山羊體軀各部位生長發育的強度不一</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">致,頭部、四肢及皮膚等在早期就發育完成,胸腔、骨盆、腰</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">部等部位發育較晚,所需時間較長,若營養先好后差,則早期</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">生長發育的組織與器官得到充分的生長與發育,而后期發育的</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">組織與器官生長發育不良,生產實踐中所見的是四肢較高但胸</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">腔較窄與淺的山羊;若營養先差后好,則抑制早期發育的組織</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">與器官的生長與發育,促進晚熟組織與器官的生長發育,山羊</span></span><span style="font-family: MingLiU_HKSCS; font-size: 16px;">體型亦出現畸形。</span><span style="font-family: MingLiU_HKSCS; font-size: 16px;">山羊在育成階段對蛋白質的需求較高,從斷奶后到</span><span style="font-family: MingLiU_HKSCS; font-size: 16px;">15月</span><span style="font-family: MingLiU_HKSCS; font-size: 16px;">齡的母羊需要可消化蛋白質105?</span><span style="font-family: MingLiU_HKSCS; font-size: 16px;">110g,</span><span style="font-family: MingLiU_HKSCS; font-size: 16px;">公羊需要135?</span><span style="font-family: MingLiU_HKSCS; font-size: 16px;">160g,</span><span style="font-family: MingLiU_HKSCS; font-size: 16px;">育成階段骨骼生長發育迅速,對礦物質的需要量大,尤其是對</span><span style="font-family: MingLiU_HKSCS; font-size: 16px;">鈣、磷的需求非常迫切,育成期的母羊,每日約需鈣</span><span style="font-family: MingLiU_HKSCS; font-size: 16px;">5.0</span><span style="font-family: MingLiU_HKSCS; font-size: 16px;">?</span><span style="font-family: MingLiU_HKSCS; font-size: 16px;">6.6g,</span><span style="font-family: MingLiU_HKSCS; font-size: 16px;">磷</span><span style="font-family: MingLiU_HKSCS; font-size: 16px;">3.2</span><span style="font-family: MingLiU_HKSCS; font-size: 16px;">?</span><span style="font-family: MingLiU_HKSCS; font-size: 16px;">3.6g。</span><span style="font-family: MingLiU_HKSCS; font-size: 16px;">維生素對育成階段的山羊了也十分重要,尤其</span><span style="font-family: MingLiU_HKSCS; font-size: 16px;">是維生素</span><span style="font-family: MingLiU_HKSCS; font-size: 16px;">A</span><span style="font-family: MingLiU_HKSCS; font-size: 16px;">和</span><span style="font-family: MingLiU_HKSCS; font-size: 16px;">D,</span><span style="font-family: MingLiU_HKSCS; font-size: 16px;">若飼料中缺乏維生素</span><span style="font-family: MingLiU_HKSCS; font-size: 16px;">A,</span><span style="font-family: MingLiU_HKSCS; font-size: 16px;">山羊出現表皮組</span><span style="font-family: MingLiU_HKSCS; font-size: 16px;">織角質化、神經系統功能退化、繁殖機能下降、免疫功能降低、</span><span style="font-family: MingLiU_HKSCS; font-size: 16px;">易感染各種疾病等;若缺乏維生素</span><span style="font-family: MingLiU_HKSCS; font-size: 16px;">D,</span><span style="font-family: MingLiU_HKSCS; font-size: 16px;">山羊表現為生長發育不</span><span style="font-family: MingLiU_HKSCS; font-size: 16px;">良、體型短小、甚至出現佝僂病等。</span></p><p style="text-indent:24px"><span style="font-family: MingLiU_HKSCS; font-size: 16px;">看過這篇文章的人都看了;<a href="http://tiyu88bet.com/yangsiliao/532.html" target="_self"><strong>東北育肥羊飼料配方</strong></a></span></p><p style="text-indent:24px">推薦相關閱讀文章;<a href="http://tiyu88bet.com/yangsiliao/544.html" target="_self"><strong>羊顆粒飼料配方</strong></a></p><p><br/></p>Sat, 24 Jun 2017 09:10:09 +0800吉林唯美饲料新闻网 http://tiyu88bet.com/yangzhi/post/115.html<p><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">山羊的生活習性</span></span></p><p style="text-indent:24px"><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">一、山羊的生活習性</span></span></p><p style="text-indent:24px"><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">這里所介紹的山羊生活習性僅限于與日常飼養有關的習</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">性,而不是山羊的全部習性。我們了解山羊的生活習性,有助</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">于人們更好地管理與利用它,只有通過平時的實踐觀察,多和</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">山羊接觸,才能更好地熟悉山羊的生活習性。建議閱讀文章;<a href="http://tiyu88bet.com/yangsiliao/537.html" target="_self"><strong>羊飼料的最佳配方</strong></a></span></span></p><p><span style="font-family: MingLiU_HKSCS;font-size: 16px">(一)</span> <span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">活潑好動,喜登高</span></span></p><p style="text-indent:24px"><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">山羊行動敏捷,喜好攀登墻垣、土坡等高處,在山區的陡</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">坡和懸崖上山羊能夠行走自如,當高處有喜吃的牧草和樹葉</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">時,山羊能將其前肢攀在巖石或樹干上,后肢直立去采食高處</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">的牧草或樹葉</span>,這是所有山羊比較突出的習性之一。群眾有“精</span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">山羊,疲綿羊</span>”的說法。</span></p><p><span style="font-family: MingLiU_HKSCS;font-size: 16px">(二)</span> <span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">愛干燥、清潔,惡潮濕</span></span></p><p style="text-indent:24px"><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">山羊喜高燥,惡潮濕,適于在干燥涼爽的山區生活。在羊</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">舍選址時應選擇在高燥地區建場,羊舍修建時羊床要高出地面</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px">lm</span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">左右。在飼養管理上,平時盡量不要在低洼潮濕地放牧,</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">不能受霧露雨淋,應喂給潔凈的草料和清水,以保證羊只健康。推薦閱讀文章;<a href="http://tiyu88bet.com/yangsiliao/538.html" target="_self"><strong>羊飼料發酵劑</strong></a></span></span></p><p style="text-indent:24px"><span style="font-family: MingLiU_HKSCS;font-size: 16px">(三)</span> <span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">適應性強,采食廣</span></span></p><p style="text-indent:24px"><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">山羊對不良的自然環境條件適應性強,耐寒、耐熱、抗病</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">力強,因此,山羊群中的病羊不易發覺</span></span><sub><span style="font-family: MingLiU_HKSCS;font-size: 16px;vertical-align: sub"><span style="font-family:MingLiU_HKSCS">?</span></span></sub><span style="font-family: MingLiU_HKSCS;font-size: 16px">&nbsp;<span style="font-family:MingLiU_HKSCS">一旦發現有病,則病</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">已嚴重,所以要求放牧人要經常注意觀察,及早發現,及時治</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">療。山羊采食廣,能采食</span>600多種植物,但不愛吃有刺毛的草</span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">和帶有蠟脂的草,也不大吃牛尾草</span>,拒食被畜禽便污染的牧草,</span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">山羊特別喜歡食用樹枝嫩葉,因此,很適宜在灌木林地放牧。</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">在封山育林地區,應該采取適合當地的飼養方式,以防損壞林</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">業。山羊是反芻動物,能較好地利用豆桔、豆莢及玉米秸桿等</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">粗飼料。在能吃飽青草的季節或有較好青干草補飼的情況下,</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">不需補飼精料,就可以保證正常的生理活動和育肥。</span></span></p><p style="text-indent:24px"><span style="font-family: MingLiU_HKSCS;font-size: 16px">(四)</span> <span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">合群性強</span></span></p><p style="text-indent:24px"><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">山羊合群性強,一般不單獨離群,個別山羊離群時鳴叫不</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">安。因此,在山羊群中選</span>1?2只山羊作領頭羊,有利于山羊</span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">的群牧管理。</span></span></p><p style="text-indent:24px"><span style="font-family: MingLiU_HKSCS;font-size: 16px">(五)</span> <span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">性成熟早,繁殖率高</span></span></p><p style="text-indent:24px"><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">山羊屬于常年發情動物,一般</span></span><sub><span style="font-family: MingLiU_HKSCS;font-size: 16px;vertical-align: sub">4</span></sub><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">?</span></span><sub><span style="font-family: MingLiU_HKSCS;font-size: 16px;vertical-align: sub">6</span></sub><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">月齡性成熟,</span></span><sub><span style="font-family: MingLiU_HKSCS;font-size: 16px;vertical-align: sub">8</span></sub><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">?</span></span><sub><span style="font-family: MingLiU_HKSCS;font-size: 16px;vertical-align: sub">10</span></sub><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">月齡初配,</span>?平均產羔率為200%,因而可以在很短時間內建立</span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">起羊群,為擴大規模養殖創造了條件,同時也為山羊適應環境</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">的改變具有很大的伸縮性。</span></span></p><p>看過這篇文章的人都看了;<a href="http://tiyu88bet.com/yangsiliao/539.html" target="_self"><strong>養羊的飼料配方</strong></a></p>Sat, 24 Jun 2017 08:53:55 +0800吉林唯美饲料新闻网 http://tiyu88bet.com/yangzhi/post/116.html<p><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">山羊的營</span></span><span style="font-family: MingLiU_HKSCS; font-size: 16px;">養需要與飼養標準</span></p><p><span style="text-indent: 24px; font-family: MingLiU_HKSCS; font-size: 16px;">羊所需要的營養物質包括蛋白質、碳水化合物、脂肪、礦</span><span style="text-indent: 24px; font-family: MingLiU_HKSCS; font-size: 16px;">物質、維生素和水。蛋白質是羊體生長和組織修復的主要原料,</span><span style="text-indent: 24px; font-family: MingLiU_HKSCS; font-size: 16px;">也提供部分能量;蛋白質是由氨基酸組成的含氮化合物,是羊</span><span style="text-indent: 24px; font-family: MingLiU_HKSCS; font-size: 16px;">休組織生長和修復的重要原料。同時,羊體內的各種酶、內分</span><span style="text-indent: 24px; font-family: MingLiU_HKSCS; font-size: 16px;">泌、色素和抗體等大多是氨蕋酸的衍生物,離開了蛋白質,生</span><span style="text-indent: 24px; font-family: MingLiU_HKSCS; font-size: 16px;">命就無法維持。在維持條件下,蛋白質主要用于滿足組織新陳</span><span style="text-indent: 24px; font-family: MingLiU_HKSCS; font-size: 16px;">代謝和維持正常生理機能的需要;碳水化合物和脂肪主要為羊</span><span style="text-indent: 24px; font-family: MingLiU_HKSCS; font-size: 16px;">提供生存和生產所必需的能量,碳水化合物包括淀粉、糖類、</span><span style="text-indent: 24px; font-family: MingLiU_HKSCS; font-size: 16px;">半纖維素、纖維素和木質素等,是組成<a href="http://tiyu88bet.com/" target="_self"><strong>羊飼料</strong></a>的主體;礦物質、</span><span style="text-indent: 24px; font-family: MingLiU_HKSCS; font-size: 16px;">維生素和水,在調節羊的生理機能、保障營養物質和代謝產物</span><span style="text-indent: 24px; font-family: MingLiU_HKSCS; font-size: 16px;">的傳輸方面,具有重要作用。羊即使處于完全饑餓的狀態下,</span><span style="text-indent: 24px; font-family: MingLiU_HKSCS; font-size: 16px;">為維持正常的代謝活動,仍需消耗一定的礦物質。所以,在維</span><span style="text-indent: 24px; font-family: MingLiU_HKSCS; font-size: 16px;">持飼養時必須保證一定水平的礦物質量。羊最易缺乏的礦物質</span><span style="text-indent: 24px; font-family: MingLiU_HKSCS; font-size: 16px;">是鈣、磷和食鹽,其中鈣、磷是組成牙齒和骨骼的主要成分。</span><span style="text-indent: 24px; font-family: MingLiU_HKSCS; font-size: 16px;">此外,還應補充必要的礦物質微量元素,羊在維持生命時也要</span><span style="text-indent: 24px; font-family: MingLiU_HKSCS; font-size: 16px;">消耗一定的維生素,必須由飼料來補充,特別是維生素</span><span style="text-indent: 24px; font-family: MingLiU_HKSCS; font-size: 16px;">A</span><span style="text-indent: 24px; font-family: MingLiU_HKSCS; font-size: 16px;">和</span><span style="text-indent: 24px; font-family: MingLiU_HKSCS; font-size: 16px;">D。</span><span style="text-indent: 24px; font-family: MingLiU_HKSCS; font-size: 16px;">在羊的冬季日糧中搭配一些胡蘿卜或青貯飼料,能保證羊的維</span><span style="text-indent: 24px; font-family: MingLiU_HKSCS; font-size: 16px;">生素需要;水對人、畜都是不可缺少的營養成分之一,是動物</span><span style="text-indent: 24px; font-family: MingLiU_HKSCS; font-size: 16px;">機體的主要組成成分,體內各種養分的吸收、轉運代謝及廢物</span><span style="text-indent: 24px; font-family: MingLiU_HKSCS; font-size: 16px;">的排出必須先溶于水后才能進行,水的溶解力很強,是最好的</span><span style="text-indent: 24px; font-family: MingLiU_HKSCS; font-size: 16px;">溶劑,水的比熱大,導熱性好,能很好地調節體溫,水同時是</span><span style="text-indent: 24px; font-family: MingLiU_HKSCS; font-size: 16px;">動物體內化學反應的介質</span><span style="text-indent: 24px; font-family: MingLiU_HKSCS; font-size: 16px;">,所以要為羊提供充足、衛生的飲水,</span><span style="text-indent: 24px; font-family: MingLiU_HKSCS; font-size: 16px;">這是羊只保健的重要環節。推薦閱讀文章;<a href="http://tiyu88bet.com/yangsiliao/536.html" target="_self"><strong>圈養羊飼料配方</strong></a></span></p><p style="text-indent:24px"><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">羊的營養需要得不到滿足,就會動用體內貯存的養分來彌</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">補虧損,導致體重下降或體質衰弱等不良后果。只有當日糧中</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">的能量和蛋白質等營養物質超出羊的維持需要時,羊才能維持</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">一定水平的生產能力。干乳空懷的母羊和非配種季節的成年公</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">羊,大都處于維持飼養狀態,對營養水平要求不高。山羊的維</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">持需要,與同體重的其他羊相似或略低。</span></span></p><p style="text-indent:24px"><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">山羊按年齡可分為羔羊、育成羊及成年羊,成年羊又可根</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">據生產目的不同分種用羊和育肥羊,不同的生理階段對營養物</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">質的需要不同。</span></span></p><p>建議閱讀文章;<a href="http://tiyu88bet.com/yangsiliao/537.html" target="_self"><strong>羊飼料的最佳配方</strong></a></p><p><br/></p>Fri, 23 Jun 2017 08:53:03 +0800吉林唯美饲料新闻网 http://tiyu88bet.com/yangzhi/post/114.html<p style="text-indent:24px"><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">本品種選育是指在本品種內通過選種選配、品系繁育、改</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">善培育條件等措施,以提高品種生產性能的一種育種方法。木</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">品種選育的目的是保持和發展本品種的優良特性,克服某些缺</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">點,并保持品種的純度,不斷提高品種的數量和質量。</span></span></p><p style="text-indent:24px"><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">本品種選育主要用于山羊地方良種的選育提高。我國各地</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">山羊品種中有不少地方良種,它們都具有良好的適應性和某種</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">突出的生產性能。這些地方良種只能通過本品種選育的方法才</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">能既保持品種原有的特性,同時又提高整個品種的生產性能。推薦閱讀;<a href="http://tiyu88bet.com/yangsiliao/544.html" target="_self"><strong>羊顆粒飼料配方</strong></a></span></span></p><p style="text-indent:24px"><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">地方良種的選育程序有以下幾個方面:</span></span></p><p style="text-indent:24px"><span style="font-family: MingLiU_HKSCS;font-size: 16px">(1)</span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">對品種資源進行全面普查,調查了解品種的分布區</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">域及其自然條件、生態環境、品種的特征特性、數量、生長發</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">育和生產性能,以及當地飼養管理狀況和存在的主要問題,摸</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">清品種現狀。</span></span></p><p style="text-indent:24px"><span style="font-family: MingLiU_HKSCS;font-size: 16px">(2)</span> <span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">在調查摸底的基礎上確定理想型要求,制定品種標</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">準和鑒定分級方法。并按照鑒定分級標準對羊群進行鑒定整</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">群,按級組群,將符合理想型標準的羊只集中起來建立選育核</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">心群。對現有的全部公進行嚴格鑒定,凡不符合要求的公羊</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">一律淘汰。</span></span></p><p style="text-indent:24px"><span style="font-family: MingLiU_HKSCS;font-size: 16px">(3)</span> <span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">制定科學的選育目標和選育實施方案,指導選育工</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">作。選育方案的基本內容包括:種公羊和種母羊的選擇標準和</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">培養方法、羊群飼養管理制度、選配方法等技術措施,及生產</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">經營制度等。</span></span></p><p style="text-indent:24px"><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">選入核心群的羊只,尤其種公羊,必須是符合品種標準的</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">優良個體。核心群的任務是為本品種選育工作提供優質種羊</span>,</span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">為一般繁殖群提供優秀種公羊。在選育工作中選優去劣,淘汰</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">不良個體。一旦發現特別優秀的公羊,應采用人工授精,擴大</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">利用率,充分發揮其優良特征。建議閱讀文章;<a href="http://tiyu88bet.com/yangsiliao/535.html" target="_self"><strong>小尾寒羊飼料配方</strong></a></span></span></p><p style="text-indent:24px"><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">二、羊的雜交改良</span></span></p><p style="text-indent:24px"><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">雜交改良是指通過雜交的方式獲得雜種優勢,以提高地方</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">品種的生產性能或改變地方品種的生產方向的方法總稱。</span></span><span style="font-family: MingLiU_HKSCS; font-size: 16px;">對于生產性能低、沒有特殊價值的土種羊,應進行雜交改</span><span style="font-family: MingLiU_HKSCS; font-size: 16px;">良。雜交改良的目的不同,采用的雜交方法也不同。</span></p><p style="text-indent:24px"><span style="font-family: MingLiU_HKSCS; font-size: 16px;">具體方法</span></p><p style="text-indent:24px"><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">如下</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px">;</span></p><p style="text-indent:24px"><span style="font-family: MingLiU_HKSCS;font-size: 16px">(</span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">一</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">)</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">級進雜交</span></span></p><p style="text-indent:24px"><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">以土種羊為母本,生產性能高的優良種公羊作父本進行雜</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">交,</span></span><span style="font-family: MingLiU_HKSCS; font-size: 16px;">級進代數越多,雜種后代愈接近優質種羊品種特性。但級</span><span style="font-family: MingLiU_HKSCS; font-size: 16px;">進代數并非越多越好,需根據雜種后代的具體情況靈活掌握。</span><span style="font-family: MingLiU_HKSCS; font-size: 16px;">一般級進到</span><span style="font-family: MingLiU_HKSCS; font-size: 16px;">3代,即轉入橫交自繁。</span></p><p><span style="font-family: MingLiU_HKSCS;font-size: 16px">(二)</span> <span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">育成雜交</span></span></p><p style="text-indent:24px"><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">主要用來培育新品種,無固定雜交模式。</span></span></p><p><span style="font-family: MingLiU_HKSCS;font-size: 16px">(三)</span> <span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">導入雜交</span></span></p><p style="text-indent:24px"><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">在導入雜交后代中選擇含外血</span>1/2或1/4的優良個體與原</span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">品種進行回交,然后進行自群繁育。通過這種方法,不僅能保</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">持原品種的生產方向和特性,而且能迅速、有效地改進品種某</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">些缺點。</span></span></p><p style="text-indent:24px"><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">看過這篇文章的人都去看了;<a href="http://tiyu88bet.com/yangsiliao/536.html" target="_self"><strong>圈養羊飼料配方</strong></a></span></span></p><p><br/></p>Fri, 23 Jun 2017 07:49:35 +0800吉林唯美饲料新闻网 http://tiyu88bet.com/yangzhi/post/113.html<p style="text-indent:24px"><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">世界各地山羊品種和類型繁多。據目前所知,全世界己形</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">成的山羊品種有</span>150多個。為便于研究和利用,必須對品種進</span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">行分類。最常用的方法是按經濟用途分類。小編建議大家閱讀;<a href="http://tiyu88bet.com/yangsiliao/536.html" target="_self"><strong>圈養羊飼料配方</strong></a></span></span></p><p style="text-indent:24px"><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">山羊品種按經濟用途分類,主要分為</span>7個類型:</span></p><p><span style="font-family: MingLiU_HKSCS;font-size: 16px">(1)</span> <span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">乳用山羊如嶗山奶山羊、關中奶山羊、努比亞山</span></span></p><p><span style="font-family: MingLiU_HKSCS;font-size: 16px">(2)</span> <span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">肉用山羊如南江黃羊、馬頭山羊、波爾山羊。</span></span></p><p><span style="font-family: MingLiU_HKSCS;font-size: 16px">(3)</span> <span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">絨用山羊如遼寧絨山羊、內蒙古白絨山羊。</span></span></p><p><span style="font-family: MingLiU_HKSCS;font-size: 16px">(4)</span> <span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">羔皮用山羊如濟寧青山羊。</span></span></p><p><span style="font-family: MingLiU_HKSCS;font-size: 16px">(5)</span> <span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">裘皮用山羊如中衛山羊。</span></span></p><p><span style="font-family: MingLiU_HKSCS;font-size: 16px">(6)</span> <span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">普通山羊如新疆山羊、西藏山羊。</span></span></p><p><span style="font-family: MingLiU_HKSCS;font-size: 16px">(7)</span> <span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">毛用山羊如安哥拉山羊等。</span></span></p><p style="text-indent:24px"><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">二、</span></span> <span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">我國主要山羊品種</span></span></p><p><span style="font-family: MingLiU_HKSCS;font-size: 16px">(一)乳用山羊</span></p><p><span style="font-family: MingLiU_HKSCS;font-size: 16px">1.</span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">關中奶山羊</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><br/></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">原產地:</span></span></p><p style="text-indent:24px"><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">陜西省渭河平原,是以當地山羊為基礎,主要利用莎能奶</span></span><span style="font-family: MingLiU_HKSCS; font-size: 16px;">山羊經過長期雜交選育而成的乳用品種。現主要分布在關中的</span><span style="font-family: MingLiU_HKSCS; font-size: 16px;">富平、三源、涇陽、蒲城等</span><span style="font-family: MingLiU_HKSCS; font-size: 16px;">8個奶山羊基地縣。</span></p><p style="text-indent:24px"><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">外貌特征:</span></span> <span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">、</span></span></p><p style="text-indent:24px"><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">體質結實,乳用型明顯,頭長額寬,眼大耳長,鼻直嘴齊。</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">母羊頸長,胸寬,背腰平直,腹大而不下垂,尻部寬長,有適</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">度傾斜,乳房大,多呈方圓形,</span>?質地柔軟,乳頭大小適中。公</span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">羊頭大頸粗,胸寬深,腹部緊湊。睪丸發育良好,公母羊四肢</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">結實,姿勢端正,蹄質結實,呈蠟黃色。毛短色白,皮膚粉紅</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">色,部分羊耳、鼻、唇及乳房有大小不等的黑斑,老齡更甚。</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><br/></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">體尺與生產性能:</span></span></p><p style="text-indent:24px"><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">成年公羊體高在</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px">82cm</span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">以上,成年母羊體高在</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px">69cm</span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">以上</span>;</span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">成年公羊體重在</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px">65kg</span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">以上,成年母羊體重在</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px">45kg</span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">以上。一般</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">飼養條件下,優良個體羊平均產奶量</span>:一胎</span><span style="font-family: MingLiU_HKSCS;font-size: 16px">450kg,</span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">二胎</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px">520kg,</span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">三胎</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px">600kg,</span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">高產個體在</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px">700kg</span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">以上,含脂率</span>3.8%?4.3%。</span><span style="font-family: MingLiU_HKSCS; font-size: 16px;">飼養條件好,產奶量可提高</span><span style="font-family: MingLiU_HKSCS; font-size: 16px;">15%?20%。</span></p><p style="text-indent:24px"><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">母羊平均懷孕天數為</span>149.5±2.45天,一胎產黑率平均為</span><span style="font-family: MingLiU_HKSCS;font-size: 16px">130%,二胎以上平均為174%。推薦羊飼料配方請閱讀;<a href="http://tiyu88bet.com/yangsiliao/534.html" target="_self">育肥羊飼料配方</a></span></p><p style="text-indent:24px"><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">缺點:</span></span></p><p style="text-indent:24px"><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">品種內個體差異大,今后應加強選育和提純,以充分挖掘</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">其生產潛力。</span></span></p><p><span style="font-family: MingLiU_HKSCS;font-size: 16px">2.</span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">嶗山奶山羊</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><br/></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">原產地:</span></span></p><p style="text-indent:24px"><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">這是從</span>1904年幵始在青島的嶗山及膠東等地先后從德、</span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">英等國引入奶山羊,經過長期與當地山羊雜交選育而培育成的</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">地方優良奶山羊品種,具有耐粗飼、生長發育快、產奶量高、</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">適應性強、遺傳性能穩定等優良特性,主要分布在</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px">ill</span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">東省東部、</span></span><span style="font-family: MingLiU_HKSCS; font-size: 16px;">膠東半島及山東中南等地。</span></p><p style="text-indent:24px"><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">外貌特征:</span></span></p><p style="text-indent:24px"><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">嶗山奶山羊毛色純白,毛細短,皮膚呈粉紅色,富有彈性,</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">成年羊的頭部、耳及乳房的皮膚多有黑色的皮膚斑點。公、母</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">羊大多數無角,體質結實,結構緊湊而勻稱,頭長額寬,鼻直</span>,</span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">眼大,嘴齊,耳薄較長,向前外方伸展。公羊頸粗壯,母羊頸</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">薄長,胸部寬廣,肋骨開張良好。背腰平直,尻略下斜,母羊</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">腹大而不下垂,乳房附著良好,上方下圓,乳頭大小適中,四</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">肢端正,蹄質結實,在整體結構上看,具有良好的乳用體形。</span></span></p><p style="text-indent:24px"><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">體尺與生產性能:</span></span></p><p style="text-indent:24px"><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">成年峻山奶山羊公羊的體高為</span>80?</span><span style="font-family: MingLiU_HKSCS;font-size: 16px">88cm,</span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">體長為</span>86?</span><span style="font-family: MingLiU_HKSCS;font-size: 16px">93cm,</span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">胸圍為</span>98?</span><span style="font-family: MingLiU_HKSCS;font-size: 16px">104cm;</span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">成年母羊的體尺分別為</span>69?</span><span style="font-family: MingLiU_HKSCS;font-size: 16px">74cm、</span><span style="font-family: MingLiU_HKSCS;font-size: 16px">71?</span><span style="font-family: MingLiU_HKSCS;font-size: 16px">80cm、</span><span style="font-family: MingLiU_HKSCS;font-size: 16px">79?</span><span style="font-family: MingLiU_HKSCS;font-size: 16px">88cm。</span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">成年公羊體重為</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px">8CK14kg,</span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">成年母羊體</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">重為</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px">49.58kg。</span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">在良好的飼養條件下優秀的群體一歲公羊體重</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">可達</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px">60kg</span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">以上,母羊體重在</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px">50kg</span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">以上,成年公羊的體重可達</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px">100kg</span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">左右,成年母羊體重在</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px">55kg</span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">左右。</span></span></p><p style="text-indent:24px"><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">99%的人看過這篇文章后,都去看了;<a href="http://tiyu88bet.com/yangsiliao/532.html" target="_self"><strong>東北育肥羊飼料配方</strong></a></span></span></p><p><br/></p>Thu, 22 Jun 2017 09:44:53 +0800吉林唯美饲料新闻网 http://tiyu88bet.com/yangzhi/post/112.html<p style="text-indent:24px"><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">山羊肉生產經濟要素分析</span></span></p><p style="text-indent:24px"><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">山羊肉生產需具備的要素有羊只、飼草、勞力、技術、資</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">金、交通等,在這些要素中,在農區具有優勢條件的要素有:</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">勞力多,飼草來源廣泛,精料添加容易;其劣勢是草地草質差</span>,</span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">經營分散,需要用產業化生產鏈條連接。另外,山羊肉產業化</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">生產所需資金少,便于啟動,而且肉的生產比奶的生產對交通</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">條件的依賴少,這些都是發展肉山羊業的有利條件。但是,其</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">產業形成卻有賴于效益推動。</span></span></p><p style="text-indent:24px"><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">從效益形成角度分析,牧業生產效益來自三個方面:一為</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">生態因素帶來的效益,如草地利用,其投入少,飼養成本低;</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">二為技術因素帶來的效益,如良種和飼養科學化,促進生產效</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">率提高</span>;三為社會因子帶來的效益,如市場供需差異帶來收益。</span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">山羊肉生產可分為繁殖公、母畜放牧飼養和羔羊舍飼肥育兩部</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">分,它的效益產生于:</span>①利用牧草、秸稈飼養帶來的生態經濟</span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">效益;</span>②羔羊肉屬于優質肉類,它的生產將填補市場缺口,為</span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">肉山羊業帶來社會經濟效益;</span>③隨著波爾山羊經濟利用方式及</span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">相關技術的推廣,也會使羊肉中蘊含的高技術產生高經濟效</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">益。推薦閱讀;<a href="http://tiyu88bet.com/yangsiliao/536.html" target="_self"><strong>圈養羊飼料配方</strong></a></span></span></p><p style="text-indent:24px"><span style="font-family: MingLiU_HKSCS;font-size: 16px">(5)</span> <span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">山羊具有快速游走、攀緣利用陡峭山地上的小塊草</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">地的能力。</span></span></p><p style="text-indent:24px"><span style="font-family: MingLiU_HKSCS;font-size: 16px">(6)</span> <span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">山羊對濕冷以外的氣候條件有廣泛的適應力。這個</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">特性有利于山羊對我國南北方草資源的全面利用。其利用效果</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">若與牛、綿羊比較,在自然灌叢植被條件下放牧山羊,可獲得</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">維持飼養和低的生產飼養要求;放牧綿羊僅可獲得維持需要,</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">而放牧牛連維持需要也不能滿足。</span></span></p><p style="text-indent:24px"><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">以上這些特點,反映出山羊對我國中原、南方草資源有明</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">顯的利用優勢。小編建議大家閱讀;<a href="http://tiyu88bet.com/yangsiliao/537.html" target="_self"><strong>羊飼料的最佳配方</strong></a></span></span></p><p>看過以上文章的人,大多數都看了;<a href="http://tiyu88bet.com/yangsiliao/539.html" target="_self"><strong>養羊的飼料配方</strong></a></p>Thu, 22 Jun 2017 07:34:25 +0800吉林唯美饲料新闻网 http://tiyu88bet.com/yangzhi/post/111.html<p style="text-indent:24px"><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">國外肉羊業基本為主導經營,有些還在羔羊肉生產中實行</span></span><span style="font-family: MingLiU_HKSCS; font-size: 16px;">集約化生產,在技術上推行品種良種化、生產雜交配套體系化、</span><span style="font-family: MingLiU_HKSCS; font-size: 16px;">飼養標準化。他們的集約化生產應用的是全價顆粒飼料、人工</span><span style="font-family: MingLiU_HKSCS; font-size: 16px;">乳飼養羔羊,采用繁殖控制技術進行生產,羊舍實行最佳環境</span><span style="font-family: MingLiU_HKSCS; font-size: 16px;">參數設計,達到批量周轉、整批管理的</span><span style="font-family: MingLiU_HKSCS; font-size: 16px;">0的。而我國肉羊業的</span><span style="font-family: MingLiU_HKSCS; font-size: 16px;">經營有兩種方式:</span><span style="font-family: MingLiU_HKSCS; font-size: 16px;">①在牧區依賴天然草地放牧和農副產品補飼</span><span style="font-family: MingLiU_HKSCS; font-size: 16px;">生產羊肉;</span><span style="font-family: MingLiU_HKSCS; font-size: 16px;">②在農區進行依附性經營。依附性經營是依靠農副</span><span style="font-family: MingLiU_HKSCS; font-size: 16px;">產品、零星草地、剩余勞力做<a href="http://tiyu88bet.com/" target="_self"><strong>羊飼料</strong></a>進行羊肉生產,其產出只作農業收</span><span style="font-family: MingLiU_HKSCS; font-size: 16px;">入補充。這種依附性經營方式投入少,產出也少,難以形成商</span><span style="font-family: MingLiU_HKSCS; font-size: 16px;">品優勢。</span></p><p style="text-indent:24px"><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">另外,從飼養工作的管理特點看,在主導經營下羊只飼養</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">是以羊只營養需要為依據,組織配合日糧;而依附性經營是有</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">什么草料喂什么草料,羊只生產水平受到供給條件強烈的約</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">束。推薦閱讀文章;<a href="http://tiyu88bet.com/yangsiliao/539.html" target="_self"><strong>養羊的飼料配方</strong></a></span></span></p><p style="text-indent:24px"><span style="font-family: MingLiU_HKSCS;font-size: 16px">5.</span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">羊肉生產效率</span></span></p><p style="text-indent:24px"><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">國內外羊肉生產由于生產技術的差異,也帶來效率不同:</span></span></p><p style="text-indent:24px"><span style="font-family: MingLiU_HKSCS;font-size: 16px">(1)</span> <span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">出欄率。根據國家統計局和聯合國糧農組織公布的</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">資料,</span>1993年末,我國山羊出欄率為36.8%,遠低于澳大利亞</span><span style="font-family: MingLiU_HKSCS; font-size: 16px;">(74.4%)、法國(54.5%)、西班牙(43.4%)、塞浦路斯(42.3%)</span><span style="font-family: MingLiU_HKSCS; font-size: 16px;">等國。</span></p><p style="text-indent:24px"><span style="font-family: MingLiU_HKSCS;font-size: 16px">(2)</span> <span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">平均胴體重。我國山羊平均胴體重為</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px">11kg,</span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">低于世</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">界平均水平</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">(</span>12kg),</span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">日本</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">(</span>33kg)</span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">等</span>98個國家或地區的屠宰</span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">羊平均胴體重。</span></span></p><p style="text-indent:24px"><span style="font-family: MingLiU_HKSCS;font-size: 16px">(3)</span> <span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">年末存欄綿山羊平均產肉量。我國平均產肉量為</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px">6.9kg,</span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">遠低于美國(〗</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px">4.3kg)、</span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">塞浦路斯</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">(</span>14kg)、</span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">法國</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">(</span>13.84kg)、</span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">巴基斯坦</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">(</span>11.24kg)、</span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">新西蘭</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">(</span>10.16kg)</span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">等國。</span></span></p><p style="text-indent:24px"><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">建議閱讀文章;<a href="http://tiyu88bet.com/yangsiliao/537.html" target="_self"><strong>羊飼料的最佳配方</strong></a><br/></span></span></p><p style="text-indent:24px"><span style="font-family: MingLiU_HKSCS;font-size: 16px">(三)我國山羊肉的生產優勢</span></p><p style="text-indent:24px"><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">肉山羊業在我國牧業生產中是最薄弱的產業,它不僅生產</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">水平低、生產效益差,而且對資源的利用也極不合理。但是</span>,</span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">由于我國草資源的特點及山羊的固有特性,卻使它蘊含有潛在</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">的發展優勢。</span></span> <span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">,</span></span></p><p style="text-indent:24px"><span style="font-family: MingLiU_HKSCS;font-size: 16px">1.</span> <span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">我國草地資源特點</span></span></p><p style="text-indent:24px"><span style="font-family: MingLiU_HKSCS;font-size: 16px">(1)</span> <span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">我國約有草地</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px">4.07</span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">億公頃,占國土面積的</span>40%,其</span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">中,南方草地</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px">0.47</span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">億公頃,占草地的</span>11%。在我國的草地中,</span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">牧業重點省份的草地,其中開發強度較大的己有不同程度的退</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">化,而南方草地還利用不足。</span></span></p><p style="text-indent:24px"><span style="font-family: MingLiU_HKSCS;font-size: 16px">(2)</span> <span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">我國草原隨氣候濕潤系數減少,草群中粗蛋白質</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">含量逐步增加,而游離的無氮浸出物含量卻相對減少。這種草</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">群的營養比(碳:氮)與草原的利用方向有關。其處于牧區低</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">比的典型草原和荒漠草原,粗蛋白質含量高,適宜發展毛用畜</span>,</span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">目前己形成我國毛羊基地。處于我國農區的高比零星草地,適</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">于肉羊發展。</span></span></p><p style="text-indent:24px"><span style="font-family: MingLiU_HKSCS;font-size: 16px">(3)</span> <span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">我國農區生產山羊肉占到全國山羊肉總量的</span>88%。</span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">在農區用于養羊的生產條件為:</span>①草地分布零散,且大多分布</span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">于丘陵山地;</span>②從北向南草層愈來愈高,產草量愈來愈多,但</span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">含粗纖維愈來愈多,含蛋白質愈來愈少;</span>③在草地中分布較多</span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">灌木叢,而且草地與農田插花分布形成農牧結合生產態勢;</span>④</span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">在農區,農副產品豐富,精料來源容易,勞力多,有利于推行</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">分層利用資源的羊肉生產模式。</span></span></p><p style="text-indent:24px"><span style="font-family: MingLiU_HKSCS;font-size: 16px">2.</span> <span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">山羊的生物學、生態學特性,有利于對我國中原、南</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">方草地和農副產品的利用</span></span></p><p style="text-indent:24px"><span style="font-family: MingLiU_HKSCS;font-size: 16px">(1)</span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">對牧草的采食。在反芻畜中,山羊與牛、綿羊相比</span>,</span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">山羊、牛、綿羊采食牧草種類數分別為</span>90 : 17 : 20,山羊采</span><span style="font-family: MingLiU_HKSCS; font-size: 16px;">食飼草種類數明顯多于牛、綿羊。</span></p><p style="text-indent:24px"><span style="font-family: MingLiU_HKSCS;font-size: 16px">(2)</span> <span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">據報道,山羊在草地放牧時,把</span>53%的采食時間用</span><span style="font-family: MingLiU_HKSCS; font-size: 16px;">在灌木嫩枝葉的采食上,</span><span style="font-family: MingLiU_HKSCS; font-size: 16px;">38%的采食時間用在禾本科草以及其</span><span style="font-family: MingLiU_HKSCS; font-size: 16px;">他闊葉草上,</span><span style="font-family: MingLiU_HKSCS; font-size: 16px;">9%的采食時間用在補充飼料或其他零星草采食</span><span style="font-family: MingLiU_HKSCS; font-size: 16px;">活動上。在牧草的采食中,山羊明顯喜食灌木,這有利于對灌</span><span style="font-family: MingLiU_HKSCS; font-size: 16px;">叢草地利用。</span></p><p style="text-indent:24px"><span style="font-family: MingLiU_HKSCS;font-size: 16px">(3)</span> <span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">山羊對牧草的種類和部位有挑食的習性。這個習性</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">在自由放牧條件下放牧時,羊只采食的營養高于將這些草收割</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">后供給羊只飼喂時所含的營養。</span></span></p><p><span style="font-family: MingLiU_HKSCS;font-size: 16px">(4)</span> <span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">山羊對粗纖維消化率高。根據</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px">Eihag( 1976)</span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">對山羊、</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">綿羊的對比測定,山羊、綿羊對優質草的利用基本相近,對劣</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">質草中有機物和粗蛋白的利用也基本相同,而對劣質飼草中的</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">細胞壁消化程度山羊較綿羊高</span></span></p><p>看過這篇文章的人我建議大家閱讀;<a href="http://tiyu88bet.com/yangsiliao/536.html" target="_self"><strong>圈養羊飼料配方</strong></a></p>Wed, 21 Jun 2017 09:47:55 +0800吉林唯美饲料新闻网 http://tiyu88bet.com/yangzhi/post/110.html<p style="text-indent:24px"><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">二次世界大戰以后,國外對肉類的要求由成畜肉轉向幼畜</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">肉。肥羔由于瘦肉多、脂肪少、味美、鮮嫩多汁、膻味小、易</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">消化等優點,很受歡迎。同時,羔羊出生后最初幾個月生長快、</span></span><a href="http://tiyu88bet.com/" target="_self"><strong><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">羊</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">飼料</span></span></strong></a><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">報酬高、價格高而成本低,因此,一些養羊業發達的國家</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">都在繁育早熟肉用品種的基礎上進行肥羔的專業化生產,肥羔</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">的產量迅速增長。肥羔生產已發展為由專營工廠化進行,這種</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">工廠的規模有的很大,每批可生產肥羔幾萬只。新西蘭在人工</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">草場上進行羔羊的放牧肥育</span>,4?5月齡時屠宰,體重可達36?</span><span style="font-family: MingLiU_HKSCS;font-size: 16px">40kg。</span></p><p style="text-indent:24px"><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">由于肥羔業的發展,有些國家的養羊業做到周轉快、產品</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">率高、成本低。在綿羊育種工作中特別重視提高早熟性和產羔</span></span><span style="font-family: MingLiU_HKSCS; font-size: 16px;">率,有些國家已育成一些新品種。</span></p><p style="text-indent:24px"><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">養羊由自然放牧轉向現代化生產,一些養羊業較發達的國</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">家,在粗放地區經營細毛羊,半集約經營地區養肉毛兼用或毛</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">肉兼用半細毛羊,集約經營地區養肉用羊和生產肥羔。羊場的</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">經營也越來越專門化,根據目的不同,有所分工。推薦閱讀文章;<a href="http://tiyu88bet.com/yangsiliao/544.html" target="_self"><strong>羊顆粒飼料配方</strong></a></span></span></p><p style="text-indent:24px"><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">在改良天然草場和人工草場上狠下工夫,以充分利用草地</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">資源,提高載畜量和產品率。其中有些國家建立集約化經營的</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">人工草場,產草量和草的營養價值高,不到一畝地養一只羊,</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">是提高載畜量的有效措施。不少國家對牧草種子的選育工作不</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">下于糧食作物,完全擺脫了</span> “靠天養畜”的局面。如新西蘭已</span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">有</span>2/3以上的草場經過改良和建成人工草場,全國平均每</span><span style="font-family: MingLiU_HKSCS;font-size: 16px">3.3</span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">畝地養一只羊。飼草飼料的種植、收割、加工都實行了機械化。</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">同時采用草場圍欄分區輪牧的方法,既有利于合理利用草場,</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">又可防止寄生蟲的感染。生產過程中的喂飼、飲水、剪毛、藥</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">浴等都實現了機械化,一名牧工加上牧羊犬的輔助,可以管理</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">幾千只羊,勞動生產率大大提高,加以飼養優良綿羊品種,因</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">而可以達到以最低的成本獲得最高產量的優質產品。養羊業中</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">重視育種工作,同時也非常重視經濟雜交,利用雜交優勢來提</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">高生產性能。由于采用先的科學技術成果和生產手段,使養</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">羊業走向現代化生產。</span></span></p><p style="text-indent:24px"><span style="font-family: MingLiU_HKSCS;font-size: 16px">(二)我國肉羊業生產技術水平與牧業發達國家之間的對</span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">比</span></span></p><p style="text-indent:24px"><span style="font-family: MingLiU_HKSCS;font-size: 16px">1.</span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">良種化水平</span></span></p><p style="text-indent:24px"><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">國外肉羊基本為培育品種,很多國家肉羊生產己實行父母</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">系間品種雜交配套。如美國采用薩福克、漢普夏、南丘羊、蒙</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">特代羊、切維特、雪洛普夏、牛津羊等作父系品種,采用蘭布</span></span><span style="font-family: MingLiU_HKSCS; font-size: 16px;">里耶、考力代、塔吉羊、波利帕羊等作母系品種,進行父母系</span><span style="font-family: MingLiU_HKSCS; font-size: 16px;">間雜交,利用雜種優勢進行商品生產。英國以蘇格蘭黑面羊為</span><span style="font-family: MingLiU_HKSCS; font-size: 16px;">母系,以邊區萊斯特、薩福克、漢普夏、無角道塞特等為父系</span><span style="font-family: MingLiU_HKSCS; font-size: 16px;">進行肉羊雜交生產。新西蘭飼養的肉羊有羅姆尼、薩福克、漢</span><span style="font-family: MingLiU_HKSCS; font-size: 16px;">普夏羊,均為世界名種。澳大利亞肉羊生產實行三元雜交,以</span><span style="font-family: MingLiU_HKSCS; font-size: 16px;">美利奴為母本,先用邊區萊斯特交配生產雜交一代,后用無角</span><span style="font-family: MingLiU_HKSCS; font-size: 16px;">道塞特公羊雜交。法國飼養的肉羊品種有:法蘭西島羊、德國</span><span style="font-family: MingLiU_HKSCS; font-size: 16px;">肉用美利奴羊、泊利考斯羊、夏洛來羊等。世界上目前公認的</span><span style="font-family: MingLiU_HKSCS; font-size: 16px;">山羊肉羊良種為波爾山羊</span><span style="font-family: MingLiU_HKSCS; font-size: 16px;">(Boer)。</span><span style="font-family: MingLiU_HKSCS; font-size: 16px;">波爾山羊目前已分布到世</span></p><p><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">界大多數山羊生產國。這些良種的性能表現為:建議閱讀文章;<a href="http://tiyu88bet.com/yangsiliao/535.html" target="_self"><strong>小尾寒羊飼料配方</strong></a></span></span></p><p><span style="font-family: MingLiU_HKSCS;font-size: 16px">1)</span> <span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">生產快</span></span></p><p style="text-indent:24px"><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">如陜西省飼養的三個肉羊良種:波爾山羊</span>3月齡前日增重</span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">為</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px">227g;</span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">薩福克羊</span>4月齡前日增重為</span><span style="font-family: MingLiU_HKSCS;font-size: 16px">337g</span><span style="font-family: MingLiU_HKSCS;font-size: 16px">(夏洛來羊4月齡</span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">體重為</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px">.35</span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">?</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px">4.5kg,</span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">這些品種羊的生長速度高出我國一般肉用</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">羊生產速度</span>2?3倍。</span><span style="font-family: MingLiU_HKSCS;font-size: 16px">?</span></p><p><span style="font-family: MingLiU_HKSCS;font-size: 16px">(2)</span> <span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">繁殖性能高</span></span></p><p style="text-indent:24px"><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">波爾山羊產羔率為</span>160%?220%,薩福克為130%?140%,</span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">夏洛來在</span>180%以上。</span></p><p><span style="font-family: MingLiU_HKSCS;font-size: 16px">(3)</span> <span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">每千克增重消耗飼料少</span></span></p><p style="text-indent:24px"><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">波爾山羊肥羔生產,每增重</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px">lkg,</span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">消耗飼料</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px">3.9kg </span><span style="font-family: MingLiU_HKSCS;font-size: 16px">(以飼</span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">料干物質計</span>)。</span></p><p><span style="font-family: MingLiU_HKSCS;font-size: 16px">(4)</span> <span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">產肉效率高</span></span></p><p style="text-indent:24px"><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">經南非在同一條件下對比測定,綿山羊良種屠宰率:波爾</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">山羊為</span>48.3%,道帕爾綿羊為48.5%,南非肉用美利奴為</span><span style="font-family: MingLiU_HKSCS;font-size: 16px">46.6%,美利奴為41%;肉骨比:波爾山羊為4.7:1,道帕爾</span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">為</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px">4.76 </span><span style="font-family: MingLiU_HKSCS;font-size: 16px">: 1,南非肉用美利奴為</span><span style="font-family: MingLiU_HKSCS;font-size: 16px">4.4 </span><span style="font-family: MingLiU_HKSCS;font-size: 16px">: 1,美利奴為</span><span style="font-family: MingLiU_HKSCS;font-size: 16px">4.3 </span><span style="font-family: MingLiU_HKSCS;font-size: 16px">: 1,這</span><span style="font-family: MingLiU_HKSCS; font-size: 16px;">個對比測定說明了山羊中波爾山羊和綿羊中道帕爾品種都是</span><span style="font-family: MingLiU_HKSCS; font-size: 16px;">多肉品種。</span></p><p style="text-indent:24px"><span style="font-family: MingLiU_HKSCS;font-size: 16px">(5)</span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">雜交配套后表現雜交優勢明顯</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><br/></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">據測定,一般品種間雜交可使后代的生長速度提高</span>5%?</span><span style="font-family: MingLiU_HKSCS;font-size: 16px">7%,三元雜交使羔羊斷奶活重增加30%。</span></p><p style="text-indent:24px"><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">我國肉羊生產主要是利用地方綿羊、山羊品種進行生產,</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">由于這些品種未經系統選育,其生產水平較低。</span></span></p><p style="text-indent:24px"><span style="font-family: MingLiU_HKSCS;font-size: 16px">2.</span> <span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">羊肉的生產方式</span></span></p><p style="text-indent:24px"><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">國外羊肉生產多利用品種間雜交生產商品肉,如美國的羊</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">肉</span>80%為雜交羊的羊肉,法國46%為雜交羊的羊肉;而我國</span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">大多是利用地方品種繁殖,直接進行羊肉生產。</span></span></p><p style="text-indent:24px"><span style="font-family: MingLiU_HKSCS;font-size: 16px">3.</span> <span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">生產產品</span></span></p><p style="text-indent:24px"><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">國外羊肉生產大多為羔羊肥育宰殺的肥羔肉,如新西蘭羔</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">羊肉占羊肉總量</span>70%,澳大利亞占60%,美國占94%,</span><span style="font-family: MingLiU_HKSCS;font-size: 16px">.</span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">這些</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">肥羔肉肉質細嫩、多汁、味道好;而我國多為老羊、殘羊或淘</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">汰羊宰殺的老齡羊,其肉質粗硬。</span></span></p><p style="text-indent:24px"><span style="font-family: MingLiU_HKSCS;font-size: 16px">4.</span> <span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">高產支撐條件</span></span></p><p style="text-indent:24px"><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">由于肉羊高產需要較高的營養條件供給,在國外解決營養</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">問題主要是通過以下方法:</span></span></p><p><span style="font-family: MingLiU_HKSCS;font-size: 16px">(1)</span> <span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">草地改良,利用人工草地生產肥羔。</span></span></p><p style="text-indent:24px"><span style="font-family: MingLiU_HKSCS;font-size: 16px">(2)</span> <span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">舍詞育肥,為育肥羔羊提供高水平肥育混合料。</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">利用地域條件間的優勢互補作用,進行異地育肥,使資源</span></span><span style="font-family: MingLiU_HKSCS; font-size: 16px;">得到充分利用。而我國大多采用天然草地放牧及農副產品補飼</span><span style="font-family: MingLiU_HKSCS; font-size: 16px;">進行肉羊的生產,其生產效率遠不如高產國家。</span></p><p><br/></p><p>看過這篇文章的人都去看了;<a href="http://tiyu88bet.com/yangsiliao/537.html" target="_self"><strong>羊飼料的最佳配方</strong></a></p>Wed, 21 Jun 2017 07:42:05 +0800吉林唯美饲料新闻网 http://tiyu88bet.com/yangzhi/post/109.html<p style="text-indent:24px"><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">大力推進養羊業優勢產業帶建設</span></span></p><p style="text-indent:24px"><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">在肉羊發展方面要突出中原、內蒙古中東部及河北北部、</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">西北和西南肉羊優勢生產區域建設,以生產優質羊肉為核心,</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">以發展產業化經營為突破口,在重點優勢區域內實行規模化生</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">產、標準化管理,力爭在幾年內建成優勢羊肉產業帶,最大限</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">度地滿足國內市場對羊肉產品的需求。在絨山羊發展方面,以</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">內蒙古、新疆、遼寧等省為重點區域,從穩定生產和減輕草地</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">壓力的角度出發控制絨用山羊數量,提高單產和品質,滿足</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px">p</span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">內市場需要,積極擴大出口。在綿羊毛生產優勢區域,重點提</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">高綿羊個體產毛量和羊毛品質,實現優質細毛羊的規范化生</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">產;全面推行機械剪毛、羊毛出邊、分級整理、機械打包等規</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">范化的模式。建議閱讀文章;<a href="http://tiyu88bet.com/yangsiliao/437.html" target="_self"><strong>育肥羊飼料添加劑</strong></a></span></span></p><p style="text-indent:24px"><span style="font-family: MingLiU_HKSCS;font-size: 16px">2.</span> <span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">進一步強化良種繁育體系建設,提高養羊業良種化水</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">平</span></span></p><p style="text-indent:24px"><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">按照《全國畜禽良種工程二期建設規劃》的要求,加強良</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">種場的建設,建立符合我國養羊業生產實際的良種繁育體系。</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">同時爭取實施肉羊良種補貼,發揮政策導向作用,調動農民飼</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">養良種的積極性。在注重引進國外優良品種的同時,加強新品</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">種(品系</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">)</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">的培育,從引進為主轉向引進和培育并重,逐步形</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">成以自我開發為主的育種體系。積極探索企事業單位和科研院</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">所相結合的育種新機制,扶持肉羊良種企業集團的發展,利用</span></span><span style="font-family: MingLiU_HKSCS; font-size: 16px;">信息技術、生物技術,結合常規技術的應用,加快新品種的培</span><span style="font-family: MingLiU_HKSCS; font-size: 16px;">育。重點加強地方品種資源的保護,在保種的同時加強新品種</span><span style="font-family: MingLiU_HKSCS; font-size: 16px;">培育和開發,逐步形成以保護促開發、以開發促保護的良性循</span><span style="font-family: MingLiU_HKSCS; font-size: 16px;">環機制。推薦閱讀;<a href="http://tiyu88bet.com/yangsiliao/539.html" target="_self"><strong>養羊的飼料配方</strong></a></span></p><p style="text-indent:24px"><span style="font-family: MingLiU_HKSCS;font-size: 16px">3.</span> <span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">加快養羊業的科技進步</span></span></p><p style="text-indent:24px"><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">加強養羊業的科技推廣力度,堅持良種良法相配套。提高</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">飼養管理水平,加大疫病防控力度,增強抵御風險的能力,增</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">加農民收入。以畜牧業</span>“科技入戶”工程為載體,逐步增加肉</span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">羊養殖科技示范縣數量,通過示范園、典型戶和科技致富戶的</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">示范帶動作用,提高農民使用先進實用技術的積極性,普及推</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">廣良種、高效安全養殖和標準化生產等技術。</span></span></p><p style="text-indent:24px"><span style="font-family: MingLiU_HKSCS;font-size: 16px">4.</span> <span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">大力發展加工業,積極開拓畜產品市場</span></span></p><p style="text-indent:24px"><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">要積極扶持養羊業加工龍頭企業的發展,增強養羊產業的</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">發展后勁,帶動養羊業的發展。完善相關的標準體系,加強對</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">產品質量的監控,提高產品質量和安全水平。重視對產品加工</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">關鍵技術的研究幵發,支持加工企業進行技術改造,鼓勵發展</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">肉羊產品的精深加工,實施羊毛收購分級制度。結合無規定動</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">物疫病區建設,培育一批畜產品加工出口基地和跨國經營的示</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">范龍頭加工企業,促進畜產品出口。完善并建立羊毛拍賣市場</span>,</span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">推行羊毛拍賣和工牧直交,減少中間環節,實現優毛優價。</span></span></p><p><span style="font-family: MingLiU_HKSCS;font-size: 16px">(一)國外肉羊業概況</span></p><p style="text-indent:24px"><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">羊分布在地球上以北半球和南半球南北回歸線各</span>40。間的</span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">帶狀區域內最多,這個帶狀區域內的溫度和其他生態條件對羊</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">的生活最適宜。目前北半球分布最多的地方在歐洲西部和南</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">部,即蘇聯、英國、西班牙、羅馬尼亞、保加利亞、南斯拉夫、</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">法國、意大利等國;亞洲羊數分布最多的國家有中國、印度、</span></span><span style="font-family: MingLiU_HKSCS; font-size: 16px;">土耳其、伊朗、伊拉克等國;北美洲主要分布在美國。南半球</span><span style="font-family: MingLiU_HKSCS; font-size: 16px;">以拉丁美洲的阿根廷、烏拉圭、巴西、秘魯等國羊數較多,非</span><span style="font-family: MingLiU_HKSCS; font-size: 16px;">洲的南非、埃塞俄比亞、摩洛哥、蘇丹等國;大洋洲的澳大利</span><span style="font-family: MingLiU_HKSCS; font-size: 16px;">亞、新西蘭兩國羊數也較多。其中綿羊只數最多的國家依次為</span><span style="font-family: MingLiU_HKSCS; font-size: 16px;">澳大利亞、俄羅斯、中國、新西蘭、土耳其、印度、阿根廷、</span><span style="font-family: MingLiU_HKSCS; font-size: 16px;">伊朗、南非(阿扎尼亞)、英國,</span><span style="font-family: MingLiU_HKSCS; font-size: 16px;">?巴西、埃塞俄比亞等國。</span></p><p style="text-indent:24px"><span style="font-family: MingLiU_HKSCS;font-size: 16px">19世紀20?50年代,世界上綿羊以產毛為主,著重生產</span><span style="font-family: MingLiU_HKSCS;font-size: 16px">60支以上的細毛,而把羊肉的生產列為從屬地位,所謂“毛</span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">主肉從</span>”。50年代以來,隨著冷藏和合成纖維工業的迅速發展,</span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">加上肉類消費量的增長,羊肉價格的提高,人們逐漸感到單純</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">生產細毛而忽視半細毛和羊肉的生產,在經濟上是很不合算</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">的,同時毛紡工業技術上的進步,對羊毛細度不像過去那樣追</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><br/></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">求很細,因而逐漸向毛肉兼用和肉毛兼用方向發展,歐洲的一</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">些國家如法國等發展為現在的</span>“肉主毛從”的方向。毛紡工業</span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">在對細毛與半細毛的使用和比例上發生新的變化,對支數較粗</span></span><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">的羊毛織品、工業用毛、絨線用毛量的要求亦不斷增長。</span></span></p><p style="text-indent:24px"><span style="font-family: MingLiU_HKSCS;font-size: 16px"><span style="font-family:MingLiU_HKSCS">99%的人看了這篇文章后,都去看了;<a href="http://tiyu88bet.com/yangsiliao/528.html" target="_self"><strong>微貯飼料</strong></a>操作技術</span></span></p><p><br/></p>Tue, 20 Jun 2017 09:00:22 +0800