The indigenous sheep breeds of South Africa, such as the Nguni, are well adapted to different ecological regions throughout country. This has resulted into ecotypes. However, it is not clear if differences among Nguni genetically distinct. present study aimed use latest technology assess genetic relationship between ecotypes and other selected African using SNP markers. In current study, 144 sa...

BACKGROUND Commercial sheep raised for mutton grow faster than traditional Chinese sheep breeds. Here, we aimed to evaluate genetic selection among three different types of sheep breed: two well-known commercial mutton breeds and one indigenous Chinese breed. RESULTS We first combined locus-specific branch lengths and di statistical methods to detect candidate regions targeted by selection in...

Transhumance is an extensive farming system developed by livestock farmers, that moved their herds between lowlands and uplands, in order to cope with the seasonality of the available forage. The purpose of this study was to examine the transhumant sheep and goat system in Greece highlighting differences in management aspects among the country’s regions. Non-parametric statistical methods in a ...

OBJECTIVES To describe levels of risky sexual behaviour, HIV testing and HIV knowledge among men and women in Guatemala by ethnic group and to identify adjusted associations between ethnicity and these outcomes. DESIGN Data on 16,205 women aged 15-49 and 6822 men aged 15-59 from the 2008-2009 Encuesta Nacional de Salud Materno Infantil were used to describe ethnic group differences in sexual ...

Prior to European settlement in western North America, bighorn sheep (Ovis canadensis) were more widespread and abundant than they are today (Buechner 1960). The species arrived via the Bering land bridge approximately 70-100,000 years before the present (YBP) (Kurten and Anderson 1980) and slowly spread to occupy most mountainous regions of western North America from southern British Columbia ...

the archaeological evidence suggests that iran has been one of the first origins of sheep domestication in the world. this study aims to investigate the genetic diversity of indigenous iranian sheep breeds using mitochondrial dna (mtdna) and to explore the evolutionary history of sheep domestication in iran. single nucleotide polymorphism (snp) markers in the control region of mtdna were used t...

indigenous knowledge of each land is the manner of understanding and attitude of people towards world that shows the outcome of ancestors' experiences for years on optimal utilization of resources around human beings. emphasis on technology transition and disregard for indigenous knowledge cause not only destroys the relationship between humans and the environment, but also causes disrupti...

Twenty-seven sheep of the four most common Swiss breeds and the English breed Poll Dorset were experimentally infected with a northern European field strain of bluetongue virus serotype 8 (BTV-8). Animals of all breeds developed clinical signs, viremia and pathological lesions, demonstrating that BTV-8 is fully capable of replicating and inducing bluetongue disease (BT) in the investigated shee...

Myostatin (MSTN) is an inhibitor of skeletal muscle growth, and a mutation in the gene coding region leads to increased muscling. Calpastatin (CAST) is a specific inhibitor of the ubiquitous calcium-dependent proteases, µ-calpain and m-calpain, found in mammalian tissues. In this study, genomic DNA was extracted from Zandi sheep blood samples. Gel monitoring and spectrophotometer methods were u...