Genotypic structure of four cattle breeds raised in Turkey by loci related to several diseases

FASN gene polymorphism in indigenous cattle breeds of Turkey.

The aim of this study was to determine the variants of the thioesterase (TE) beta-ketoacyl reductase (KR) domains of the Fatty Acid Synthase (FASN) gene, in the East Anatolian Red (EAR) and South Anatolian Red (SAR) cattle breeds. It has been suggested that the FASN gene is effective on fatty acid composition of meat in cattle. In this study, the genotype and allele frequencies of g.17924 A>G, ...

Kappa-casein Genotypic Frequencies in Russian Breeds Black and Red Pied Cattle

Casein is a family of milk proteins that exists in several molecular forms and is the main protein present inthe bovine milk. The B variant of bovine k-casein is reported to be favorable for quality and quantity of cheese derived from milk and considered to be included in breeding strategies of dairy cattle. Genotypes of72 Russian Black Pied and 80 Red Pied cows were determined for ...

Maternal Effects in Four Diverse Breeds of Cattle

Genetic Diversity of Four Cattle Breeds Using Microsatellite Markers

Four cattle breeds (Gyr, Nellore, Guzerat and Holstein) were analyzed by amplification of genomic DNA using microsatellite loci to evaluate the genetic diversity within and among them. DNA samples of 18 animals from each breed were collected to access the genetic content of them. Allele frequencies were calculated and used to generate a Nei’s genetic distance matrix what was used to build a den...

Genetic diversity and differentiation of exotic and American commercial cattle breeds raised in Brazil.

The Brazilian cattle population is mainly composed of breeds of zebuine origin and their American derivatives. Comprehensive knowledge about the genetic diversity of these populations is fundamental for animal breeding programs and the conservation of genetic resources. This study aimed to assess the phylogenetic relationships, levels of genetic diversity, and patterns of taurine/zebuine admixt...