نتایج جستجو برای: lack of breed purity
تعداد نتایج: 21166339 فیلتر نتایج به سال:
The objective of this study was to compare introgression and synthetic breed strategies for litter size trait improvement in sheep using computer simulation. For this purpose, a trait with heritability of 0.1, consisting of two chromosomes was simulated. On chromosome 1, a single QTL as the major gene was created that accounted for 40% of the total genetic variance. The effect of favorable and ...
Polydactyly is the congenital presence of one or more extra digits. The extra digit often does not contain a full complement of bones. Unilateral syndactyly and polydactyl mixed-breed dog was used as a case study. A three-month old unvaccinated intact female mixed breed dog weighing 8 kg, presented with a deformity of the left forepaw was used for this study. The deformity had been present sinc...
BACKGROUND Successful human islet transplantation has led to insulin independence in type 1 diabetes. Dogs constitute an animal model for preclinical studies. We present our recent experience in canine islet isolation, cryopreservation and transplantation. METHODS Twenty-seven pancreases from mongrel dogs, weighing 9-31 kg, were removed. Each pancreas was digested with collagenase, and then p...
a crossbreeding experiment involving four iranian fat-tailed sheep breeds, namely kurdi (k), chaal (c), afshari (a) and sanjabi (s) was carried out to determine the ram breed effects on productivity of kurdi fat-tailed ewes (k) under extensive production system. a total of 475 kurdi ewes were mated to 24 rams from four breeds producing 454 lambs including pure kurdi, kk, (116 lambs), afshari × ...
introduction: enrichment of intact peripheral blood dendritic cells (dcs) has been done using rosette and immunomagnetic depletion techniques. material and methods: peripheral blood mononuclear cells were separated using ficoll density gradient centrifugation and t lymphocytes were depleted through reaction with aet- treated sheep red blood cells. the remaining cells were depleted from lineage ...
background: parasitological investigations on paramphistomosis were carried out over a 12-month period in the southeast of iran to determine the prevalence and intensity of this disease. methods: a total of 1000 cattle, sistani breed (n= 450) and brahman breed (n= 550) of all sex and age groups were inspected at random for the presence of paramphistomidae flukes in zabol slaughterhouse from dec...
An Electron Beam Ion source Charge Breeder (EBISCB) has been developed to charge breed CARIBU radioactive beams at ATLAS and it is now in the final stages of off-line commissioning. Within the next year, the EBIS-CB will replace the existing ECR charge breeder to increase the intensity and improve the purity of reaccelerated radioactive ion beams. The integration of the new EBIS-CB requires: a....
Karakul sheep breed has a lot to offer to livestock production in many parts of Botswana. This breed of sheep is acclimatised to desert conditions, which prevail in most parts of Botswana. This breed produces a range of products viz meat, milk, fur/pelt and wool, allowing for diversification of farm produce hence reduced risks attached to the production of a single product. The Karakul breed ha...
The present study investigates the culture of development in Hawrami proverbs. Analysis of development-related variables is the basis of sociology. As collective phenomena, proverbs are part of the oral culture of a society and their investigation can sociologically explain cultural and social foundations of the society. This research attempts to specify 6 development-related parameters in Hawr...
The Booroola fecundity gene (FecB) and growth differentiation factor 9 (GDF9) gene belong to the transforming growth factor β (TGF-β) superfamily. The mutations of these genes have additive effects on the prolificacy in sheep. The aim of the present study was to determine the possible mutations of FecB and FecGH genes in Lory sheep breed of the Lorestan province, Iran. Sixty...
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