Development of the Polypay breed was undertaken to combine into a composite breed the potential for greatly increased reproductive capacity along with desirable growth rate and carcass quality. Four breeds were selected for the foundation of the new breed--the Rambouillet and the Targhee for hardiness, large body size, long breeding season, herding instinct and fleece characteristics; the Dorse...

Tuj sheep, a well adopted breed for the geography and climate of the highlands, originated in the Caucasus and are found throughout the northeast of Turkey. Although the mature sheep are able to reproduce normally at these conditions, ewe-lambs are normally not able to reach puberty during the first year of their life. Shortage in feed due to long and cold winters together with the seasonality ...

This article presents and describes the main blood parameters of lambs Edilbaevskaya breed Edilbaevskaya-Dorper crossbreeds at four seven months age. According to results hematological studies, it was found that crossbred rams had a more stable tendency intense redox processes than purebred ones, which indicates an increase in their meat productivity.

This study investigated the gastrointestinal parasitism by helminths and protozoa in sheep (Ovis aries) Santa Inês breed, municipality of Lajes, Rio Grande do Norte. Monthly, from April 2005 to August 2007, stool samples were collected from two tracer lambs in the first day of the experiment and performed a necropsy of these animals in 44th day. A total of 64 lambs were sampled, but only 62 lam...

the aim of the present study was to assess the effect of slaughter and carcass weight, age at slaughter and sex on the fatty acid profile of the greek boutsiko sheep breed. twenty lambs (ten females and ten males) were examined. the lambs were slaughtered at the age of 48 days. carcasses were chopped in nine specific cuts and a random sample of 100 g was taken from each cut, with a total of 180...

The article presents the dynamics of changes in live weight for a year, measurements, body build indices and productivity one-year-old pure-bred Kazakh fine-wool female lambs crossbreeds different bloods with German meat merino, when creating sheep breed south-east Kazakhstan - “Etti merino”. resulting crossbred offspring are characterized as large animals, high good forms.

While Texel lambs have increased resistance to infection with the gastrointestinal nematode Teladorsagia circumcincta compared to Suffolk lambs, the underlying resistance mechanisms are still unknown. The aim of this study was to compare parasitological, humoral and cellular responses of Texel and Suffolk lambs over time following a single experimental infection with T. circumcincta. Gastrointe...