›› 2007, Vol. 34 ›› Issue (11): 73-76.

• 奶业专栏 • 上一篇    下一篇

奶牛日粮中添加油菜籽、菜油及脂肪酸钙对奶牛产奶量及奶品质的影响

陈胜昌   

  1. 贵州大学动物科学学院,贵阳 550025
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2007-11-20 发布日期:2007-11-20

The Effect of Supplementation of Rapeseed,Rape Oil,Fatty Acid on Milk Yield and Quality of Cows

CHEN Shengchang   

  1. College of Animal Science,Guizhou Universty,Guiyang 550025,China
  • Received:1900-01-01 Revised:1900-01-01 Online:2007-11-20 Published:2007-11-20

摘要: 试验选用泌乳3~5个月,2~5胎次,体重相近,健康无病,产奶量相近(P>0.05)的奶牛36头,随机分为4组,其中:对照组喂给基础日粮,试验1、2和3组分别在基础日粮中添加油菜籽(350 g/d·头)、菜油(150 g/d·头)和脂肪酸钙(200 g/d·头)。通过30 d对比饲养试验。结果表明:试验1、2、3组的奶牛日均产奶量分别比对照组相对提高0.88(P<0.05)、0.31(P>0.05)、0.70 kg/d·头(P<0.05)。各组间奶牛干物质采食量及饲料干物质利用率均无显著差异(P>0.05);试验1、2、3组牛奶中乳蛋白和非脂乳固体有增加的趋势,但不明显(P>0.05);试验1、2、3组与对照组的乳脂率无明显变化(P>0.05)。与对照组相比试验1组每头奶牛每天可增加纯收入1.08元,试验2组亏损0.06元,试验3组亏损0.14元;从而认为在日粮中添加油菜籽、菜油、脂肪酸钙可以提高奶牛产奶量,其中以添加油菜籽的经济效益最好。

关键词: 奶牛; 油菜籽; 菜油; 脂肪酸钙; 生产性能; 奶品质

Abstract: 36 healthy dairy cows whose milking days are 90-150,hypo-padding are 25,LW are similar were selected,and divided into four groups (P>0.05)according to Complete Random Design. Each group received one treatment,group4 was control group, group1,2 and 3 supplemented rapeseed, rape oil and fatty acid calcium respectively。After 30days experimentation, the results shown the daily milk yield of group 1,group2 and group3 enhanced 0.88 (P<0.05), 0.31(P>0.05), 0.31(P>0.05),0.70(P<0.05) kg/h/d . No significant difference fund Between all groups' DMI and FCR; Even SNF shown an increased tendency, supplementation of rapeseed (350g/h/d), rape oil (150g g/h/d) and fatty acid (200g g/h/d) did not affect the composition of milk SNF(P>0.05). Supplementation of fatty acid (200g g/h/d) increased milk fat significantly, but .that of rapeseed (350g/h/d), rape oil (150g g/h/d) had no any positive effect on the composition of milk SNF (P>0.05). group1 profited extract 1.08 Yuan kg/h/d, group2 lost 0.06 Yuan, group3 lost 0.14 Yuan kg/h/d;Above results shown supplemented rapeseed (350g/h/d) to the dairy cow whose milking day are 90-150, increase economical efficiency, supplementation of fatty acid enhanced the milk quality.

Key words: dairy cow; rapeseed; rape oil; fatty acid calcium; performance; milk yield

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