高产奶牛日粮中添加复合型添加剂对其产奶量和乳成分的影响  

The Effect of Adding Composite Additives to The Diet of High-Yield Dairy Cows on Their Milk Yield and Milk Composition

作　　者：郝明利 马世杰 王建涛 张晓利[3] 谢遇春 巩元芳[1] 刘铮铸[1] 王晓芳[4] 朱利华 张华莹[4] 乔贤 HAO Mingli;MA Shijie;WANG Jiantao;ZHANG Xiaoli;XIE Yuchun;GONG Yuanfang;LIU Zhengzhu;WANG Xiaofang;ZHU Lihua;ZHANG Huaying;QIAO Xian(College of Animal Science and Technology,Hebei Normal University of Science and Technology,Key Laboratory of Mining and Innovation of Characteristic Animal Germplasm Resources of Hebei Province,Hebei Qinhuangdao 066004,China;Tangshan Animal Husbandry Technology Extension Station,Hebei Tangshan 063000,China;Tangshan Animal Disease Prevention and Control Center,Hebei Tangshan 063004,China;Hebei Institute of Animal Husbandry and Veterinary Medicine,Hebei Baoding 071000,China)

机构地区：[1]河北科技师范学院动物科技学院,河北省特色动物种质资源挖掘与创新重点实验室,河北秦皇岛066004 [2]唐山市畜牧技术推广站,河北唐山063000 [3]唐山市动物疫病预防控制中心,河北唐山063004 [4]河北省畜牧兽医研究所,河北保定071000

出　　处：《饲料工业》2024年第19期63-68,共6页Feed Industry

基　　金：河北省现代农业产业技术体系建设专项[HBCT2024230406];唐山市科技计划项目[20150203C];河北科技师范学院博士研究启动基金项目[2022YB007];河北省引进留学人员资助项目[C202203583];河北科技师范学院省属高校基本科研业务费项目[2022JK07]。

摘　　要：为了分析复合型添加剂对高产奶牛产奶性能的影响,试验采用单因素完全随机试验设计,选取胎次为1胎、泌乳量为(34.5±2.5)kg/d、泌乳(75±5)d的100头荷斯坦泌乳奶牛,随机分成对照组和试验组,每组50头,对照组饲喂基础日粮,试验组在基础日粮中添加100 g/(头·d)复合型添加剂,试验期60 d。在第1、15、30、45、60天对产奶量、乳成分进行分析。结果表明:与对照组相比,试验组奶牛的产奶量、乳脂率、乳糖率、总固形物含量和蛋白率均显著提高(P<0.05);试验组的牛乳体细胞数明显低于对照组(P<0.05)。说明添加复合型添加剂对高产泌乳牛的泌乳性能有较好的促进作用,有效提高了乳品质,提升了经济效益。In order to analyze the effects of compound additives on the milk production performance of high-yield dairy cows,a single-factor completely randomized experiment design was used in this experi⁃ment.A total of 100 Holstein lactating cows with parity of 1 parity,milk yield of(34.5±2.5)kg/d and lac⁃tation days of(75±5)d were randomly divided into a control group and an experimental group,with 50 cows in each group.In the experimental group,100 g/(head·d)compound additive was added to the basic diet.During the 60 days of the experi⁃ment,the milk yield and milk composition were analyzed at 1st,15th,30th,45th and 60th days.The results showed as follows:it was found that compared with the control group,the milk yield,milk fat percentage,lactose percentage,total sol⁃ids and protein percentage of the experimental group were significantly increased(P<0.05).The milk somatic cell count of the experimental group was significantly lower than that of the control group(P<0.05).The results indicated that the addition of compound additives had a better effect on the lacta⁃tion performance of high-yield lactating cattle,effectively improved the milk quality,improved the eco⁃nomic benefit.

关 键 词：复合型添加剂 泌乳奶牛 产奶性能 产奶量 乳成分 

分 类 号：S816.7[农业科学—饲料科学]