Genetics aspects of reproductive performance for Holstein

A total of 16678 records of age at first calving and ages at next calving , in addition to 14058 records of calving interval belonged to Holstein cows were analysed over period from 1992 to 2003 , at the Nasr Dairy Cattle Station, United Company for Animal Resources Ltd., Al-Soueira ( 50 Km South o...

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Bibliographic Details
Main Author: F. R. Al-Samarai
Format: Article
Language:English
Published: University of Baghdad, College of Veterinary Medicine 2006-12-01
Series:The Iraqi Journal of Veterinary Medicine
Online Access:https://jcovm.uobaghdad.edu.iq/index.php/Iraqijvm/article/view/821