Estimation of Genetic Parameters for Milk Trait at Different Milking Times for Holstein Cows of Khorasan Razavi Using a Random Regression Test Day Model
In this research in order to estimate genetic parameters for milk yield at different milking times for Holstein cows of Razavi Khorasan, a total of 180,462 monthly test day records belonging to first lactation cows calved from 2000 to 2009 were utilized. The records were analysed by a random regress...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | fas |
| Published: |
Ferdowsi University of Mashhad
2012-09-01
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| Series: | پژوهشهای علوم دامی ایران |
| Subjects: | |
| Online Access: | http://ijasr.um.ac.ir/index.php/animal/article/view/15140 |