the growth hormone (gh) gene is a candidate for growth trait in farm animals and plays an important role in growth metabolism. growth hormone can contribute in growth metabolism when it's receptor (ghr) are on cells target. the single nucleotide polymorphism was occurred in gh and ghr genes and that associated with carcass traits in lori-bakhtiari sheep breed with using pcr-sscp. in this r...

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Background: This study was conducted to investigate the effect of inducing hypothyroidism by propyl-2-thiouracyl (PTU) on lambs testicular histomorphology and plasma testosterone concentration. Materials and Methods: Eighteen Lori-Bakhtari male lambs were divided to 3 groups (n=6) and each received one of the treatments as Control (C: 0 mg PTU/kg BW), Low (L: 10 mg PTU/kg BW) and High (H: 20 mg...

myostatin gene or growth and differentiation factor-8 inhibits the puberty and development of skeletal muscles and it could change the size of some muscles such as double muscle, if the mutation occurs. one of the most important indigenous sheep in iran, lori sheep, possess high genetic potential for meat production. therefore, the study of some genes affecting meat production would be of utmos...

Light microscopic analysis of the mural structure of the common carotid artery (CCA), external carotid artery (ECA) and occipital artery (OA) in Lori Bakhtiari sheep and goats revealed variability in the average values of vascular diameter and the thickness of the intimal plus medial coats and adventitial coat. Based on the histological characteristics and organization of connective tissue fibr...

In the present study, the effect of tail fat on recovery times in intact sheep and sheep with a ligated median sacral artery following similar anesthetic exposure with isoflurane was investigated. This study was performed using seven healthy fat-tailed Iranian Lori-Bakhtiyari ewe lambs. The lambs were anesthetized twice at two week intervals (the experiment was performed in two stages). After m...