摘要
选择90头中国荷斯坦奶牛作为试验对象,按照产奶量分为3组,研究奶牛泌乳性能与乳中尿素氮的关系。结果表明:高产奶牛乳中尿素氮含量高于中产奶牛与低产奶牛,但差异不显著,奶牛泌乳性能与乳中尿素氮存在弱正相关。
In order to study the relation between milk performance of dairy cows and milk urea nutrigon,ninty lactating dairy cows were divided into three groups by milk yield.Results indicated that there were not significantly affect between the high dairy cow group and the other groups.But the MUN level of high dairy cow group was higher than the other groups.Milk performance had a positive relationship with MUN.
出处
《天津农业科学》
CAS
2012年第2期32-34,共3页
Tianjin Agricultural Sciences
基金
河北省科技支撑计划项目(11250415D)
石家庄市科技支撑计划项目(11150084A)
关键词
泌乳性能
乳尿素氮
相关性
milk performance
milk urea nutrigon
relation
