Research Article
Different Single-trait Animal Models for Estimating Direct-maternal Covariance Components in Holstein Cows
Department of Animal Husbandry and Wealth Development, Faculty of Veterinary Medicine, Mansoura University, Egypt
Eman A. ABO Elfadl
Department of Animal Husbandry and Wealth Development, Faculty of Veterinary Medicine, Mansoura University, Egypt
Khairy M. El-Bayoumi
Department of Animal Wealth Development, Faculty of Veterinary Medicine, Zagazig University, Egypt