中草药饲料添加剂对奶牛产奶性能及血液生化和抗氧化指标的影响

The Effect of Chinese Herbal Medicine Additive on Milk Performance and Serum Biological,Antioxidant Indexes in Cows

为研究中草药饲料添加剂对奶牛产奶性能及血液生化和抗氧化指标的影响,选择50头体重、胎次、泌乳期相近的健康荷斯坦牛为试验动物,随机分为5组,其中4个试验组,分别在日粮中添加不同的中草药饲料添加剂,设1个对照组。预试期为15d,正试期为35d。试验表明,与对照组相比,试验结束时日粮中添加中草药饲料添加剂能够显著提高奶牛产奶量(P<0.05);试验Ⅳ组的乳脂率和试验Ⅲ组的乳蛋白含量有显著提高(P<0.05)。各试验组与对照组血清中Ca、P、BUN、ALP含量均维持在正常水平。添加中草药饲料添加剂显著降低了试验Ⅰ组、Ⅱ组和Ⅳ组血清中MDA含量(P<0.05);试验Ⅰ组、Ⅱ组的血清T-AOC显著高于对照组(P<0.05),亦有提高试验Ⅲ组、Ⅳ组血清T-AOC的趋势(P>0.05)。各试验组血清中IgG和IgM含量均高于对照组,但组间差异不显著(P>0.05)。

50 healthy cows which had the same parity,in the same duration of lactation and with the similar body weight were selected to study the effects of Chinese herbal medicine on the milk performance and the serum biological indexes.The cows were allocated into 5 groups randomly and 10 cows each group respectively.4 groups were added the different Chinese herbal medicine additive to the ration,set control.15 days for adoption and the trying period was 35 days.The results showed：added Chinese herbal medicine additive to ration could improve milk production significantly（P〈0.05）.The butter-fat content in groupⅣand the milk protein in groupⅢimproved significantly（P〈0.05）.The Ca,P,BUN and ALP content of serum in all groups sustained in the normal range.The MDA content in groupsⅠ,ⅡandⅣwere lower than control significantly（P〈0.05）.The T-AOC activity of serum in groupsⅠ,Ⅱwere higher than control significant（P〈0.05）,and the added groupsⅢ,Ⅳhad the trend to increasing（P〉0.05）.The IgG and IgM content of serum in all added groups were higher than control,but the differences were not significant（P〉0.05）.