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作 者:胡立国 胡俊杰[1] 魏玉明 齐明 汪晓斌 王鹏 HU Liguo;HU Junjie;WEI Yuming;QI Ming;WANG Xiaobin;WANG Peng(Gansn dgricuitral Unnrersin,College ofVeterinany Medicine,Gansn Lanchou 730070,China;Zhangye Animal Health Supervision Institute,Gansu Zhangye 734000,China;Zhangye Jinnongyuan Biotechnology Co.,Ltd.,Gansu Zhangye 734000,China)
机构地区:[1]甘肃农业大学动物医学院,甘肃兰州730070 [2]张掖市动物卫生监督所,甘肃张掖734000 [3]张掖市金农源生物科技有限公司,甘肃张掖734000
出 处:《饲料工业》2024年第9期50-54,共5页Feed Industry
基 金:发酵枣粉在肉牛颗粒饲料中的研发应用推广[GZ2022JS01]。
摘 要:试验旨在研究复方中草药添加剂对泌乳奶牛生产性能、乳品质及血清免疫指标的影响。选取24月龄中国荷斯坦奶牛60头,随机分为4组,每组设置3个重复,每个重复5头牛。对照组饲喂基础饲粮,3个试验组分别饲喂在基础饲粮中添加100、200、400 g/d复方中草药添加剂的饲粮,试验期30 d。结果表明:与对照组相比,饲粮中添加200 g/d和400 g/d复方中草药添加剂可以显著提高泌乳奶牛平均日产奶量(P<0.05),显著降低泌乳奶牛料奶比(P<0.05);饲粮中添加200 g/d和400 g/d复方中草药添加剂可以显著提高泌乳奶牛乳蛋白水平(P<0.05),显著降低牛奶中体细胞数(P<0.05);饲粮中添加200 g/d和400 g/d复方中草药添加剂可以显著提高泌乳奶牛血清中免疫球蛋白A(IgA)、免疫球蛋白G(IgG)和白细胞介素-2(IL-2)含量(P<0.05),显著降低泌乳奶牛血清中白细胞介素-1β(IL-1β)含量(P<0.05)。综上所述,泌乳奶牛饲粮中添加复方中草药添加剂可以提高奶牛生产性能,改善奶牛乳品质及机体免疫功能,综合考虑经济成本,复方中草药添加剂的推荐剂量为200 g/d。This experiment was conducted to study the effects of compound Chinese herbal medicine additives on the production performance,milk quality,and serum immune indicators of lactating cows.Sixty 24-month-old Chinese Holstein dairy cows were randomly divided into 4 groups with 3 replicates in each group and 5 cows in each replicate.Others in the control group were fed a basal diet,and the others in the three experimental groups were fed the basal diet supplemented with 100,200 g/d and 400 g/d compound Chinese herbal additives,respectively.The experiment lasted for 30 days.The results showed as follows:Compared with the control group,dietary supplementation of 200 g/d and 400 g/d compound Chinese herbal additives significantly increased the average daily milk yield of lactating cows(P<0.05),and significantly decreased the ratio of feed to milk of lactating cows(P<0.05);dietary supplementation of 200 g/d and 400 g/d compound Chinese herbal medicine additive significantly increased the milk protein level of lactating cows(P<0.05),and significantly decreased the somatic cell count of milk(P<0.05).Dietary 200 g/d and 400 g/d compound Chinese herbal medicine additive significantly increased the contents of immunoglobulin A(IgA),immunoglobulin G(IgG)and interleukin-2(IL-2)in serum of lactating dairy cows(P<0.05).The content of interleukin-1β(IL-1β)in serum of lactating cows was significantly decreased(P<0.05).In conclusion,dietary supplementation of compound Chinese herbal medicine additives can improve the production performance,dairy quality and immune function of lactating dairy cows.Considering the economic cost,the recommended dosage of compound Chinese herbal medicine additives is 200 g/d.
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