Comparison of F1 cows (North American Jerseys x Holsteins) with purebred Holsteins at a different milk production level

被引:0
|
作者
Brade, W. [1 ]
Jaitner, Jutta [2 ]
Reinhardt, F. [2 ]
机构
[1] TiHo & LWK Niedersachsen, FB Versuchswesen, D-30159 Hannover, Germany
[2] Vereinigte Informat Syst Tierhaltung wV VIT, D-27283 Verden, Germany
来源
ZUCHTUNGSKUNDE | 2010年 / 82卷 / 05期
关键词
Dairy cattle; crossbred cows; milk; production level; genotype x environmental interaction; DAIRY-CATTLE;
D O I
暂无
中图分类号
S8 [畜牧、 动物医学、狩猎、蚕、蜂];
学科分类号
0905 ;
摘要
A comprehensive crossbreeding experiment with North American Jersey bulls and Holstein cows was initiated in Saxony and information of these animals is meanwhile available. Data of crossbred offspring of twelve North American Jersey bulls and their respective herd mates were used for analysing fertility, calving and production traits. With increasing production level of the herds (average milk yield of purebred Holsteins) the inferiority of the F-1 animals increased in milk yield. An interaction between herd milk production level and breed could be observed. F-1 cows were considerably better than the purebred Holsteins with respect to maternal calving traits.
引用
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页码:363 / 370
页数:8
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