The article presents the results of studying Calpastatin (CAST) gene polymorphism in Tsigai (n = 23) and Merinoland sheep breed 13). purpose research. possibility using PCR-RFLP analysis to detect was primary objective this ongoing study. Research methods. analyzed by MspI endonuclease restriction. Results. We revealed diversity genotypes allelic variants Breeds. It found that M allele locus is...

The article presents the results of studying fertilizing ability sperm ramsproducers different breeds. It was found that highest fertility on average for all seasons take used were characterized by sheep inseminated with semen Stavropol breed, a minimum – seed North Caucasus mutton-wool breed.

DNA-based parentage determination accelerates genetic improvement in sheep by increasing pedigree accuracy. Single nucleotide polymorphism (SNP) markers can be used for determining parentage and to provide unique molecular identifiers for tracing sheep products to their source. However, the utility of a particular "parentage SNP" varies by breed depending on its minor allele frequency (MAF) and...

Implementing the use of spine traits in a commercial breeding program has been seen to improve meat production from the carcass of larger-bodied pigs. The aim of this study was to assess the extent of variation in spine characteristics within and between breeds of sheep and to investigate the association with body length and tissues traits to deliberate if a similar approach could be applicable...

After the analysis of the relation between the serum protein and the immunoglobulin-G content of the colostrum and the milk of 141 cattle of various genotypes (pure-bred or cross-bred), 55 goats of various breeds and 171 sheep of various breeds, it was established that there exists a very close correlation between these two components in all three species. R values of 0.9869 for cattle, 0.9723 ...

We employed mtDNA and nuclear SNPs to investigate the genetic diversity of sheep breeds of three countries of the Mediterranean basin: Albania, Greece, and Italy. In total, 154 unique mtDNA haplotypes were detected by means of D-loop sequence analysis. The major nucleotide diversity was observed in Albania. We identified haplogroups, A, B, and C in Albanian and Greek samples, while Italian indi...

β-lactoglobulin is the major whey protein in ruminant milk. In sheep, three genetic variants have been found (A, B and C) which differ from each other by a single base substitution within exon II of the gene. Various reports have indicated that the B variant is associated with higher milk yields. In this study, we have assessed the genotypic frequencies of both A and B variants in samples from ...

genetic improvement programs may improve disease resistance in animal production. the best-characterized genetic control of disease resistance and immune response in animals is the one associated with the major histocompatibility complex (mhc). the ovine lymphocyte antigenof drb1 gene encodes cell surface glycoproteins that initiate immune responses by presenting processed antigenic peptides to...

the fecundity in sheep has been much interested for producers due to its economical importance. growth differentiation factor 9 (gdf9) is an autosomal gene with over dominance effect for twosingle nucleotide polymorphisms(snps), which resulted in sterility in homozygote mutant ewes and additive effect for three snps, without showing sterility event. in the present study, dna was extracted from ...

The identification of meat quality characteristics from selected breeds grazing in specific regions is particularly relevant to achieve a marketing advantage. Longisimus thoracis at lumborum (LTL) from the indigenous Western Balkan (WB) sheep VlašićkaPramenka (VP) sheep and lambs, and Pivska Pramenka (PP) sheep grazing in Bosnia & Herzegovina (B&H) and Montenegro (MN), respectively, was compare...