The genomics revolution has spurred the undertaking of HapMap studies of numerous species, allowing for population genomics to increase the understanding of how selection has created genetic differences between subspecies populations. The objectives of this study were to (1) develop an approach to detect signatures of selection in subsets of phenotypically similar breeds of livestock by compari...

BACKGROUND Canine necrotizing meningoencephalitis (NME) is a fatal, noninfectious inflammatory disease of unknown etiology. NME has been reported only in a small number of dog breeds, which has led to the presumption that it is a breed-restricted disorder. HYPOTHESIS/OBJECTIVES Our objective was to describe histopathologically confirmed NME in dog breeds in which the condition has not been re...

LLC LIVESTOCK4EXPORT specializes in fattening cattle of specialized meat breeds, i.e., Aberdeen-Angus, Limousin, Simmental and local animals obtained by crossing the Belgian blue breed with Ukrainian red-spotted black-spotted breeds. Nowadays sector economy needs to find ways increase efficiency profitability production. The creation interbreeding herds based on industrial dairy dairy-meat cows...

While many factors contribute to resistance and susceptibility to infectious disease, a major component is the genotype of the host and the way in which it is expressed. Johne's disease is a chronic inflammatory bowel disease affecting ruminants and is caused by infection with Mycobacterium avium subspecies paratuberculosis (MAP). We have previously identified red deer breeds (Cervus elaphus) t...

Characterization, inventory and monitoring trends of animal genetic resources local breeds are crucial factors for the development conservation strategies. Using genealogical information, diversity five Spanish bovine located in northwest Spain region Galicia, called past Morenas Gallegas (Cachena, Caldelá, Frieiresa, Limiá Vianesa), has been analysed. The results achieved a good quality pedigr...

BACKGROUND There is a discrepancy in the reproductive performance between different cattle breeds. Using abattoir-derived ovaries and data base information we studied the effects of breed on in vitro fertilization and early embryo development. METHODS The in vitro developmental competence of oocytes from cattle (n = 202) of Swedish Red (SR), Swedish Holstein (SH) and mixed beef breeds was com...

The authors presented the haematological blood parameters of Romanov breed sheep and their association with genotypes according to β-lactoglobulin locus. Blood plays a significant role in body as metabolism is carried out. It delivers nutrients oxygen cells organs removes metabolic waste products carbon dioxide. intensity processes can be judged from data. Since enzymes, activity, levels, bioch...

Genetic variability in purebred dogs is known to be highly structured, with differences among breeds accounting for approximately 30% of the genetic variation. However, analysis of the genetic structure in non-cosmopolitan breeds and local populations is still limited. Nine Portuguese native dog breeds, and other peripheral dog populations (five) with regional affinities, were characterized usi...

Practically every physiological variable exhibits daily rhythmicity. The daily rhythm of body temperature, like that of many other variables, is often weak in newborns and gains strength as the animals grow. Because of the natural association between physiological maturation and gain in body size, these two processes are naturally confounded. To differentiate between the effects of maturation a...

The objective of this study was to characterize breeds representing diverse biological types for postweaning growth and carcass composition traits in terminal crossbred cattle. Postweaning growth and carcass traits were analyzed on 434 steers and 373 heifers obtained by mating F1 cows to Charolais sires. Maternal grandsires represented Hereford, Angus, and MARC III (1/4 Hereford, 1/4 Angus, 1/4...