复方中草药添加剂对围产期奶牛繁殖性能的影响

摘要

The objective of study was to investigate the effects of Chinese herbal medicine additive on reproduction performance of perinatal dairy cows,and to provide theoretical basis and methods to exert the production performance of dairy cows. Totally 32 Chinese Holstein dairy cows with similar calving date,parity,milk production were randomly divided into 4 groups:control group,group A,group B,and group C.The control group fed diet,the experimental group added prescription Chinese herbal medicine from prenatal 21 days to postpartum 21days(total 42 days).The amount of Chinese herbal medicine added in Group A,Group B,and Group C is respectively 50g/d,100g/d,and 150g/d. The results show that The hormone secrection about cow's reproduction,ifrst estrus,during postpartum 70 day cows estrus ratio and calving interval were improved by adding Chinese herbal medicine to dietary during postpartum.It is indicate that the cows repreduction performance were improved by adding Chinese herbal medicine to dietary during postpartum.%本试验旨在探讨在基础日粮中添加复方中草药对围产期奶牛生殖激素的影响，以期为更好地发挥奶牛的遗传潜力提供理论依据。选用健康的围产期荷斯坦牛32头，按照年龄相近、胎次相近、预产期相近的原则，随机分成4组，对照组饲喂常规基础日粮，处理A组、处理B组、处理C组在基础日粮基础上添加复方中草药，从产前21d~产后21d连续饲喂42d，添加量分别为50g/d、100g/d、150g/d。结果表明：奶牛围产期日粮中添加复方中草药可促进围产期奶牛生殖激素的分泌，促进遗传潜力的发挥；奶牛围产期日粮中添加复方中草药可提高第一情期受胎率、产后70d内第一次发情的母牛比率，缩短分娩至产后第一次配种间隔天数和产犊间隔，促进奶牛产后体况恢复，提高奶牛的繁殖性能。