Comparison of serum beta-carotene and vitamin A levels in sheep of Khalkhal region in open and closed breeding system
Retinol or vitamin A is an essential fat-soluble vitamin. Because of the particular role of vitamin A in different tissues and organs, various clinical signs are seen during its deficiency. In addition, in cases of marginal deficiency without clinical signs performance defects, such as infertility a...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | fas |
| Published: |
Islamic Azad University, Tabriz Branch
2020-08-01
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| Series: | Āsīb/shināsī-i Darmāngāhī-i Dāmpizishkī |
| Subjects: | |
| Online Access: | http://jvcp.iaut.ac.ir/article_676563_cda14b470d94fbc340ab89b7b0902150.pdf |