Estimation of Genetic Parameters for Production Traits in Holstein Cows of Khorasan Razavi Province
The milk and milk fat production records of 28 Holstein herds in Khorasan Razavi province were analyzed in this study. The records were based on 305 days of milking and were from the first to third milking periods and two times milking per day. The fixed effects of herd-year-season and age of dam at...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | fas |
| Published: |
Ferdowsi University of Mashhad
2012-01-01
|
| Series: | پژوهشهای علوم دامی ایران |
| Online Access: | http://ijasr.um.ac.ir/index.php/animal/article/view/11074 |