本文關(guān)鍵詞： 波雜山羊 羊乳 營養(yǎng)成分 變化規(guī)律　出處：《江蘇農(nóng)業(yè)科學(xué)》2017年09期 　論文類型：期刊論文

【摘要】：為研究山羊產(chǎn)后09周乳中營養(yǎng)物質(zhì)含量及變化規(guī)律,將試驗動物健康無病的波雜母羊(波爾山羊×徐淮山羊)分為不同胎次(25胎)、不同泌乳周(09周),隨機采集116頭份泌乳期在09周的山羊乳,并對100份乳中的蛋白質(zhì)、灰分、干物質(zhì)、脂肪、乳糖、氨基酸、礦物質(zhì)含量及變化規(guī)律進行分析。結(jié)果表明:羊乳中蛋白質(zhì)、灰分、干物質(zhì)、脂肪、氨基酸、礦物質(zhì)含量整體上隨泌乳周齡的增加呈現(xiàn)下降趨勢,且產(chǎn)后0周各種營養(yǎng)物質(zhì)(除乳糖)的含量顯著高于其他各周(P0.05);乳糖含量在1周后出現(xiàn)顯著下降趨勢(P0.05);所測的17種氨基酸中,谷氨酸的含量最高,其次是脯氨酸、亮氨酸;所測的6種礦物質(zhì)中,鈣、磷含量較為豐富,4種微量元素的含量排序為鋅鐵銅錳。由此可見,山羊乳中營養(yǎng)物質(zhì)含量隨泌乳期的延長呈現(xiàn)規(guī)律變化,這就為泌乳期山羊泌乳生理的研究提供了理論依據(jù),并為羔羊斷奶策略和補飼料的生產(chǎn)提供了一定的指導(dǎo)意義。
[Abstract]:In order to study the content and variation of nutrients in goat milk at 09 weeks postpartum, Boer goat 脳 Xuhuai goat were divided into 25 different birth stages and 09 weeks of different lactation weeks. 116 goat milk samples were collected randomly, and 100 samples of protein and ash in milk were collected. Analysis of dry matter, fat, lactose, amino acid, mineral content and change regularity. The results showed that: protein, ash, dry matter, fat, amino acid, As a whole, the mineral content decreased with the increase of lactation age. The contents of all kinds of nutrients (except lactose) were significantly higher than those of other weeks (P 0.05), the content of lactose decreased significantly after one week (P 0.05), the content of glutamic acid was the highest among the 17 amino acids measured, proline and leucine were the next. Among the 6 minerals measured, the contents of calcium and phosphorus were rich in the order of zinc, iron, copper and manganese. It can be seen that the content of nutrients in goat milk changes regularly with the prolongation of lactation period. This provides a theoretical basis for the study of lactation physiology of lactating goats, and provides certain guiding significance for the weaning strategy of lambs and the production of supplementary feed.
【作者單位】： 南京農(nóng)業(yè)大學(xué)動物科技學(xué)院;江蘇省農(nóng)業(yè)科學(xué)院六合動物科學(xué)基地;
【基金】：江蘇省農(nóng)業(yè)科技自主創(chuàng)新資金[編號:CX(15)1003] 公益性行業(yè)(農(nóng)業(yè))科研專項(編號:201203050-4)
【分類號】：S827

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