中国乳业 ›› 2021, Vol. 0 ›› Issue (7): 39-47.doi: 10.12377/1671-4393.21.07.07

• 饲养管理 • 上一篇    下一篇

不同脂肪酸添加比例对荷斯坦新产牛生产性能的影响

申跃宇, 郝科比, 王消消, 刘建业, 石宁, 王彦平, 郭刚*   

  1. 北京首农畜牧发展有限公司,北京 100176
  • 出版日期:2021-07-25 发布日期:2021-08-10
  • 通讯作者: *郭 刚（1980-）,男,河北河间人,博士,正高级畜牧师,研究方向为奶牛繁育管理及牧场数据研究。
  • 作者简介:申跃宇（1986-）,女,满族,内蒙古凉城人,硕士,高级畜牧师,研究方向为奶牛营养;郝科比（1992-）,男,蒙古族,内蒙古包头人,硕士,中级畜牧师,研究方向为奶牛营养;王消消（1987-）,女,湖北荆州人,硕士,中级畜牧师,研究方向为奶牛饲养管理;刘建业（1989-）,男,满族,辽宁抚顺人,硕士,中级畜牧师,研究方向为奶牛营养;石 宁（1987-）,男,河北唐县人,硕士,中级畜牧师,研究方向为奶牛营养;王彦平（1982-）,女,河北易县人,博士,高级畜牧师,研究方向为动物遗传育种与繁殖。
  • 基金资助:
    基于NQI构建综合质量公共服务平台支撑研究成果及在核心乳企与牧场中的应用示范（项目编号：2019YFF0216705）; 北京三元种业科技股份有限公司自立课题（项目编号：SYZYZ20190012）; 奶牛产业技术体系北京市创新团队（项目编号：BAIC06-2017）

Effects of Different Proportion of Fatty Acids on the Performance of Fresh Holstein Cattle

SHEN Yueyu, HAO Kebi, WANG Xiaoxiao, LIU Jianye, SHI Ning, WANG Yanping, GUO Gang   

  1. Beijing Sunlon Livestock Development Co.,Ltd.,Beijing 100176
  • Online:2021-07-25 Published:2021-08-10

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摘要： 通过动物试验对比新产牛日粮中不同脂肪酸添加比例对其泌乳性能的影响。分别选取35 头荷斯坦新产牛作为参试动物,分为试验组I、试验组II和对照组。对照组日粮中不添加脂肪性添加物;试验组I饲喂脂肪酸钙添加剂,其中脂肪酸占比为C16：0∶C18：1=51.00%∶35.00%;试验组II饲喂棕榈脂肪粉添加剂,其中脂肪酸占比为C16：0∶C18：1=80.00%∶8.00%,保证各组日粮的泌乳净能和粗蛋白水平一致。试验全期对照组与试验组II的平均干物质采食量都极显著高于试验组I（P<0.020）,分别增加2.470 kg和2.070 kg,对照组与试验组II间无显著差异。试验全期对照组与试验组II的产奶量都极显著高于试验组I（P<0.020）,分别增加3.560 kg和3.500 kg,对照组与试验组II间无显著差异。对照组、试验组I和试验组II之间的体重无显著差异,试验组II失重最小为64.100 kg,对照组失重最大为87.500 kg,相差23.400 kg。综合分析,日粮中添加脂肪粉（C16：0∶C18：1=80.00%∶8.00%）对产后泌乳性能以及减少产后体脂动员、维持体况最为有利。

关键词: 新产牛, 脂肪酸, 采食量, 产奶量, 体重损失

Abstract: The effects of different proportion of fatty acids in the diets on lactation performance of fresh cows were compared by animal experiments.fresh Holstein cattle were divided into Experimental Group I,Experimental Group II and Control Group.Fatty additives were not added to the diet of the control group;the Experimental Group I was fed with fatty acid calcium additives,in which the proportion of fatty acids was C16:0∶ C18:1 = 51.00%∶35.00%; the Experimental Group II was fed with palm Fat powder additives,in which the proportion of fatty acids was C16:0∶C18:1 = 80.00%∶8.00%.The lactation net energy and crude protein levels of each group are the same.The average dry matter intake of control group and Experimental Group II was significantly higher than that of Experimental Group I (p < 0.020),and increased by 2.470 kg and 2.070 kg,respectively.The milk yield of Control Group and Experimental GroupII was significantly higher than that of Experimental Group I (p < 0.020) and increased by 3.560 kg and 3.500 kg, respectively.There was no significant difference in Body Weight Between Control Group, Experimental Group I and Experimental Group II.The weight loss of Experimental Group II was 64.100 kg,the weight loss of Control Group was 87.500 kg,the difference was 23.400 kg.Comprehensive analysis showed that adding fat powder in Diet (C16:0∶C18:1 = 80.00%∶8.00%) was most beneficial to improve the postpartum lactation performance,reduce postpartum body fat mobilization and maintain body condition.

Key words: fresh cow, fatty acids, feed intake, milk yield, weight loss

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