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...

For this study, 24 Bakhtiari sheep were selected and divided into four age groups: 1-10 days, 5-8 months, 1-2 years and 3 years and more. In each age group, six animals (3 each sex) were used. The specimens of eight different skin regions were collected. They were fixed in 10% formaldehyde solution and processed through routine paraffin embedding, cut at 5-7 μ and stained with H&E, Masson trich...

in this study, production, reproduction, managerial, and economic parameters obtained from data recorded for lori-bakhtiari flock of sheep (500 heads of breeding ewe) stationed at the sheep's breeding station, were employed to determine the relative economic values of and breeding objectives for an annual cycle of production, in village system in this breed of sheep. economic value for a t...

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in this research,  300  pairs of lymph nodes; prescapular, prefemoral and popliteal were collected from lori – bakhtiari sheep in shahrekord abattoir. the specimens divided in two age groups (6 -12 month and 13 – 18 months) and then length, width and thickness of them were recorded using by caliper. for histological studies, lymph nodes were processed through routine tissue preparation techniqu...

the relationship between live body weight, body length, girth circumference, animal hight, upper, middle as well as lower width of fat-tail, fat-tail length, fat-tail gap length, fat-tail depth and fat-tail circumference along with fat-tail weight were determined using records of 731 loribakhtiari sheep. principal component and least square analyses were applied to solve the collinearity instab...

In ruminants, colostrum is a vital source of immunoglobulins that provide passive immunity for their offspring during the neonatal period. It is suggested that colostral immunoglobulin G (IgG) concentration varies between and within breeds and could also be affected by maternal factors. The aim of this study was to investigate possible effects of litter type and ewe parturition number on colost...

To determine the most prevalent biovar responsible for brucellosis in sheep and goat populations of Iran, a cross-sectional study was carried out over 2 years in six provinces selected based on geography and disease prevalence. Specimens obtained from referred aborted sheep and goat fetuses were cultured on Brucella selective media for microbiological isolation. Brucellae were isolated from 265...