Relationship between milk urea concentration and the fertility of dairy cows

被引:18
作者
Cottrill, B [1 ]
Biggadike, HJ [1 ]
Collins, C [1 ]
Laven, RA [1 ]
机构
[1] ADAS Bridgets Res Ctr, Martyr Worthy SO21 2AP, Hants, England
关键词
D O I
10.1136/vr.151.14.413
中图分类号
S85 [动物医学(兽医学)];
学科分类号
0906 ;
摘要
The relationship between milk urea concentration and the fertility of dairy cows was examined in two studies. The first examined the relationship between bulk milk urea concentration and overall herd fertility, using data collected from 250 herds in the UK. There was no relationship either between bulk milk urea concentration and fertility, or between changes in bulk milk urea concentration and fertility. The second study compared the relationship between the milk urea concentration five days after service, and the fertility of individual cows on 11 UK dairy farms. There was no significant difference between the milk urea concentration of the cows that became pregnant and those that did not.
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页码:413 / 416
页数:4
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