Meta-Analysis of Various Environmental and Genetic Parameters of Fertility-Related Traits in Dairy Cows
نویسندگان
چکیده
Meta-Analysis of Various Environmental and Genetic Parameters Fertility-Related Traits in Dairy Cows
منابع مشابه
Genetic parameters for production, health, fertility and longevity traits in dairy cows.
Milk production, fertility, longevity and health records, were extracted from databases of two milk recording organisations in the United Kingdom for the first three lactations of the Holstein-Friesian breed. These included data related to health events (mastitis and lameness), voluntarily recorded on a proportion of farms. The data were analysed to calculate disease incidence levels and to est...
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The objective of present study was to derive the economic values for number of inseminations to conception, calving interval, milk yield and stillbirth, using economic data of 10 Iranian Holstein herds. The economic values were derived by using the profit function methods and differentiating a profit equation with respect to the traits of interest. The cow fertility costs herd amortization or r...
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ژورنال
عنوان ژورنال: ???????? ??????? ????
سال: 2022
ISSN: ['2251-8622', '2676-461X']
DOI: https://doi.org/10.52547/rap.13.38.162