摘要
试验选用60头体况、年龄、胎次相近且健康的荷斯坦奶牛,采用完全随机区组试验设计,分为3组,每组20头,研究不同比例蒸汽压片代替粉碎玉米对奶牛生产性能的影响。结果表明:随着蒸汽压片玉米比例增加,奶牛干物质采食量无显著变化(P>0.05);产奶量显著增加,且区组间差异显著(P<0.05);对乳脂率和乳蛋白率无明显影响(P>0.05)。表明在奶牛日粮中添加合适比例的蒸汽压片玉米有利于提高奶产量。
A total of 60 healthy Holstein cows with similar body conditions, age and parity were selected in the experiment. They were randomly divided into three groups, with 20 cows in each group. The effects of different proportions of stream-flaked corn replacing crushed corn on the production performance of cows were studied.The results showed that with the increase in the proportion of stream-flaked corn, the dry matter intake of dairy cows had no significant change(P >0.05), the milk yield increased significantly, and he difference between groups was significant(P<0.05). There was no obvious effect on milk fat rate and milk protein rate(P>0.05). Therefore, it was beneficial to increase milk yield in adding the proportion of stream-flaked corn in dairy cows diet.
作者
何涛
刘敏
杨晓莉
He Tao;Liu Min;Yang Xiaoli(Ningxia Polytechnic,Yinchuan,Ningxia 750021;Helan County Dairy Co.,Ltd.,Ningxia State Farm,Yinchuan,Ningxia 750024)
出处
《宁夏农林科技》
2021年第12期65-67,71,共4页
Journal of Ningxia Agriculture and Forestry Science and Technology
作者简介
何涛(1975-),男,宁夏中宁人,副教授,博士,主要从事畜牧兽医专业教学工作。
