复方中草药添加剂对围产后期奶牛生产性能和隐性乳房炎的影响

Effects of Compound Chinese Herbal Medicine Additives on Production Performance and Latent Mastitis of Dairy Cows in the Postpartum Period

为研究复方中草药添加剂对围产后期奶牛泌乳量、泌乳品质、日采食量和隐性乳房炎的影响。本试验随机挑选了28头胎次、泌乳量、采食量、预产期相近且奶牛乳房诊断液检测为阳性的奶牛。试验分为4组,每组7头奶牛,试验Ⅰ组、Ⅱ组、Ⅲ组在对照组每天的基础日粮中分别添加50 g、100 g和150 g的复方中草药添加剂,连续饲喂42 d(预试验期7 d+正试验期35 d)。结果表明,和对照组相比,试验Ⅰ组、Ⅱ组、Ⅲ组日泌乳量分别提高3.00 kg、3.45 kg和3.13 kg(P<0.05),乳蛋白率差异不显著(P>0.05),乳脂率分别提高了0.19%、0.22%、0.23%(P<0.05),乳房炎发病率分别下降28.58%、42.84%和42.84%。本试验所配制的复方中草药添加剂有利于提高围产后期奶牛生产性能,降低隐性乳房炎发病率,添加量为100 g/d适宜。

To study the effect of compound Chinese herbal medicine additives on milk production,milk quality,daily feed intake and latent mastitis of dairy cows in the postpartum period.This trial randomly selected 28 dairy cows with similar parity,milk production,feed intake,expected date of delivery and positive udder diagnostic fluid.The experiment was divided into 4 groups with 7 cows in each group.The experimental group I,II and III were added with 50 g,100 g and 150 g of compound Chinese herbal medicine additives in the daily basal diet of the control group,and were continuously fed for 42 days(pre-test period 7 d+positive test period 35d).The results showed that,compared with the control group,the daily milk yield of test groups I,II and III increased by 3.00 kg,3.45 kg and 3.13 kg respectively(P<0.05),the difference in milk protein rate was not significant(P>0.05),milk fat was not significantly different(P>0.05).The rates of mastitis increased by 0.19%,0.22%and 0.23%(P<0.05),respectively,and the incidence of mastitis decreased by 28.58%,42.84%,42.84%,respectively.The compound Chinese herbal medicine additive prepared in this experiment is beneficial to improve the production performance of dairy cows in the late perinatal period and reduce the incidence of recessive mastitis,and the suitable dosage is 100 g/d.