Genetic Evaluation of Milk Production in Holstein Dairy Cattle of Khorasan Province Using a Spline Random Regression Model

This study was undertaken to estimate genetic trend and parameters of Holstein cattle in Khorasan province for milk yield using a spline random regression test day animal model. A total of 32854 monthly test day milk records (twice and thrice a day milking) obtained from 3842 Holstein heifers (proge...

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Bibliographic Details
Main Authors: H. Farhangfar, H. Naeemipour, R. Lotfi
Format: Article
Language:fas
Published: Isfahan University of Technology 2008-04-01
Series:Tulīd va Farāvarī-i Maḥṣūlāt-i Zirā̒ī va Bāghī
Subjects:
Online Access:http://jcpp.iut.ac.ir/article-1-860-en.html