复方中草药添加剂对围产期奶牛干物质采食量、生产性能及生殖激素的影响

发布时间：2018-04-19 14:38

  本文选题：复方中草药 + 围产期奶牛　； 参考：《中国饲料》2017年03期

【摘要】：本试验旨在探讨不同剂量复方中草药添加剂对围产期奶牛的生产性能及生殖激素等指标的影响。按照预产期、胎次和泌乳量相近的原则,选取24头围产前期荷斯坦奶牛,将其随机分为4组(每组6个重复,每个重复1头)。Ⅰ组饲喂基础饲粮,试验组每头分别在基础饲粮中添加100、200、300 g/d的复方中草药制剂,从产前21 d到产后21 d连续添加,正式期42 d。结果表明:(1)复方中草药添加剂可显著提高奶牛的干物质采食量(P0.05)。而产前7 d至分娩,Ⅱ组、Ⅲ组、Ⅳ组的干物质采食量分别比Ⅰ组高9%、20%、7%(P0.05),且Ⅲ组比Ⅱ组和Ⅳ组分别高出9%和11.6%,差异达到显著水平(P0.05)。(2)复方中草药添加剂组围产期奶牛的日产奶量和乳成分有显著提高(P0.05)。并且Ⅲ组、Ⅳ组奶牛的日平均产奶量较Ⅱ组分别提高了5%和6%(P0.05),但Ⅲ组、IV组无显著差异;各处理组的干物质含量分别提高0.46%、0.48%、0.53%(P0.05),乳糖含量分别提高0.02%、0.08%、0.12%(P0.05);Ⅲ组和Ⅳ组奶牛乳蛋白率分别提高0.08%、0.07%(P0.05)。(3)复方中草药对奶牛血清中E2、FSH、LH含量具有一定的调控作用,能缓解由E2剧烈变化引起的生理应激。由此可见,中草药复方添加剂能有效提高围产期奶牛干物质采食量、产奶量及乳品质,且能调节生殖激素,稳定产后生殖机能恢复。且每头以200 g/d剂量添加效果最佳。
[Abstract]:The purpose of this study was to investigate the effects of different dosages of Chinese herbal medicine additives on perinatal performance and reproductive hormones of dairy cows.According to the principle of similar birth date, birth order and lactation quantity, 24 Holstein cows in pre-perinatal period were randomly divided into 4 groups (6 replicates in each group and 1 in each repeats). Group I was fed with basic diet.In the trial group, 100200300 g / d compound Chinese herbal medicine was added to the basal diet from 21 days before delivery to 21 days after delivery, and the official period was 42 days.The results showed that the compound Chinese herbal medicine additive could significantly increase the dry matter intake of dairy cows.From 7 days to delivery, group 鈪，

本文编号：1773504