Factors affecting on longevity in Northern Khorasan Kordish sheep
Introduction The longevity is normally defined as the length of its productive life in the flock, which is the amount of time an animal spends producing (1). Longevity reflects the ability of ewe to avoid being culled for low production, low fertility, illness and influences the number and cost of r...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | fas |
| Published: |
Ferdowsi University of Mashhad
2016-04-01
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| Series: | پژوهشهای علوم دامی ایران |
| Subjects: | |
| Online Access: | http://ijasr.um.ac.ir/index.php/animal/article/view/26616 |