Objective The presence of different missense mutations in sheep breeds have shown that the bone morphogenetic protein receptor 1B (BMPR1B), bone morphogenetic protein 15 (BMP15) and growth differentiation factor 9 (GDF9) genes play a vital role in ovulation rate and prolificacy in ewes. Therefore, the present study investigates BMPR1B, BMP15 and GDF9 genes mutations in prolific ewes of Iranian ...

For this study, 24 Lori-Bakhtiari sheep were selected and divided into four age groups: 1-10 days, 5-8 months, 1-2 years and 3 and more years. In each age group, six animals (3 of 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 μm and stained with haematox...

abstract hydatid cyst is the larval stage of the cestode worm echinococcus granulosus, which causes echinococcosis in human and some other mammalian. iran is located in endemic zone of this disease and chaharmahal va bakhtiari province, due to existence of sheep husbandry jobs, has a potential for high prevalence of the disease, . therefore, this investigation was carried out to study seroepide...

Background and aims: Nowadays, the age structure of Iran is transitioning from youth to elderly. Although, the elderly population are still accounted for a small portion of the population; however, the population growth rate of this age group is growing compared to the growth of the total population. Therefore, understanding of the changes of this population is necessary. This study aimed to id...

The Effect of Water and Food Restriction on Physiological Functional Traits Lori-Bakhtiari Lambs Their Crosses

Several studies of large mammals report no direct reproductive costs for females. Individual heterogeneity may hide fitness costs of reproduction, but mothers could also transfer some costs to their offspring. Using data on 442 lambs weaned by 146 bighorn sheep (Ovis canadensis) ewes at Ram Mountain, Alberta, we studied how reproductive effort varied with environmental and maternal conditions. ...

Objective: Various practical methods have been used for pregnancy diagnosis in sheep. Methods of pregnancy diagnosis depending on visualization of the conceptus or determination of its secretory products in the maternal blood or in the milk are the most accurate and specific methods for pregnancy. In 1980, B-mode ultrasonography was introduced in the veterinary field and used for pregnancy diag...