Changes in genetic evaluation of dairy cattle: the animal model
نویسندگان
چکیده
منابع مشابه
Genetic Evaluation of Dairy Cattle in Canada
The calculation and publication of all dairy cattle genetic evaluations in Canada is the responsibility of Canadian Dairy Network (CDN). An 8-member board of directors, the majority being dairy producers, governs this non-profit national organization. Member organizations include all breed associations, milk recording agencies and artificial insemination centres across Canada as well as Dairy F...
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Calving complications have an incidence on the economic profitability of dairy herds. In the Walloon Region of Belgium, calving ease data recording is being done on voluntary basis since 2000. This allows now the implementation of a genetic evaluation of Holstein dairy cattle addressing the need of dairy breeders to select bulls in order to reduce frequency of calving problems. Calving ease sco...
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This paper addresses the economic and strategic position of animal health in the dairy operations and the way that animal health care should be properly designed. Examples of biosecurity plans and quality risk management are further elaborated. Disease risk identification and disease risk management as primary preventive issues are pivotal in modern animal health care on both the small and larg...
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Embryo transfer (ET) in Holstein dairy cattle became an important commercial enterprise after the introduction of non-surgical recovery technique. Embryo transfer could increase the reproductive rate of genetically superior cows. The objectives of the present study were to evaluate the use of ET in Iranian Holstein dairy cattle to increase selection intensity on the dam side, economically; esti...
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ژورنال
عنوان ژورنال: Kansas Agricultural Experiment Station Research Reports
سال: 1989
ISSN: 2378-5977
DOI: 10.4148/2378-5977.3004