天府肉羊哺乳期产奶量及乳中营养成分变化  

Dynamic Change of Milk yields and Their Nutrient Content in the Lactating Period of Tianfu Goats

作　　者：黄磊[1] 徐刚毅[1] 韦宏伟[1] 姜淦[1] 汪代华[1,2] 倪敏[2] 

机构地区：[1]四川农业大学动物科技学院,雅安625014 [2]四川省绵阳市畜牧兽医局

出　　处：《中国草食动物》2010年第1期15-18,共4页China Herbivores

基　　金：国家现代肉羊产业技术体系建设雅安综合试验站项目(NYCYTX-39);四川省"十一五"重大攻关项目(01NG002-06)

摘　　要：对16只天府肉羊的哺乳期(产后60d)产奶量和乳中营养成分进行测定,并对其变化规律进行分析。结果表明:经产母羊哺乳期的泌乳量为78.99 kg±6.86 kg,极显著高于初产母羊的40.76 kg±3.08 kg(P<0.01)。产后48 h内母羊初乳中的干物质、蛋白质和灰分含量迅速下降,脂肪含量先上升后下降。初产和经产母羊初乳中的干物质含量分别较常乳中高91.6%和119.4%,脂肪含量高79.9%和61.7%,乳蛋白含量高218.7%和315.4%,灰分含量高142.3%和188.9%,乳糖含量变化不大。经产母羊初乳中的干物质、蛋白质、乳糖和灰分含量均高于初产母羊,其中产后0 h的蛋白质和灰分含量较初产母羊高30.61%和20.93%,常乳中的营养成分差异不显著(P>0.05)。In this experiment,the milk yields and their nutrient content of 16 Tianfu goats in lactation period(60days postpartum)were detected and analyzed.The results indicated that the milk yields of the multiparous goats were 78.99kg±6.86kg during the lactating period,which was significantly higher than primiparous ones whose milk yield was 40.76kg±3.08kg(P<0.01).The contents of dry matter,protein and ash in the colostrum decreased sharply 48h after parturition.The content of fat increased at first and then dec...

关 键 词：天府肉羊 产奶量 初乳 营养成分 动态变化 

分 类 号：S826[农业科学—畜牧学]