Genetic evaluation of survival traits in the Holstein dairy cows of Iran
نویسندگان
چکیده
منابع مشابه
Estimation of Genetic Parameters for Lactation Curve Traits in Holstein Dairy Cows in Iran
The objectives were to estimate (co)variance components and genetic parameters for lactation curve traits in Holstein dairy cows in Iran. The used data were records on Holstein cows collected during January 2003 to December 2012 by the Animal Breeding Center of Iran (Karaj, Iran). In order to describe the lactation curve, an incomplete gamma function was fitted to 691200 test-day records on 962...
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ژورنال
عنوان ژورنال: Egyptian Journal of Veterinary Sciences
سال: 2018
ISSN: 2357-089X
DOI: 10.21608/ejvs.2018.3070.1031