BACKGROUND Sheep scrapie is caused by multiple prion strains, which have been classified on the basis of their biological characteristics in inbred mice. The heterogeneity of natural scrapie prions in individual sheep and in sheep flocks has not been clearly defined. METHODOLOGY/PRINCIPAL FINDINGS In this study, we intravenously injected 2 sheep (Suffolk and Corriedale) with material from a n...

Leptin (LEP), the expression product of the obese gene produced primarily in the adipose tissue, is related to feed intake, growth and lipid metabolism. The aim of this study was to study the possible association between polymorphism of the LEP gene with growth and carcass traits among three Iranian sheep breeds of the Shal, Zandi and Zel varieties. A total of 180 purebred animals of the Shal, ...

the number of lambs sold per ewe mated in the breeding flock has a considerable impact on sheep operation profitability. this depends primarily on fertility, prolificacy (# of lambs), and lamb survival, mothering ability, milk production of the ewe and lamb growth rate. optimal reproduction does vary by environment and management system – some sheep operations don’t want a lambing rate over 200...

The research was conducted on young sheep of the Kharkiv internal breed type Prekos breed, born in 2020. conditions farm Institute Animal Science National Academy Sciences "Gontarivka". influence different intensity and types selection, as well level feeding manifestation this trait animals two generations evaluated. It established that indicators average daily growth lambs from birth to weanin...

Abstract The aim of this study was to investigate and record data on the morphometrical parameters skull mandible in Sharri sheep. We have evaluated 34 skulls (24 females 10 males) sheep ( Ovis aries ), a local breed from Northern Macedonia. Fifty-one measurements were total: 37 14 mandible. results show that, general, morphology morphometric mandible, are similar those other breeds with few di...

Bluetongue (BT) is an infectious, noncontagious, arthropod-borne viral disease, principally of sheep but many domestic and wild animals are also affected by this disease (Akita et al., 1994). The severity of BT in sheep varies depending on the virus, the breed of sheep and environmental stress. Infection in cattle and goats is usually sub-clinical. Etiological agent of the disease belongs to th...

Electrocardiography (ECG) is one of the non-invasive, inexpensive diagnostic techniques to detect the spread of the cardiac impulses. The electrocardiographic parameters have the greatest value in recognizing and diagnosing arrhythmias in animals. Different disease conditions lead to changes in the electrolyte balance [1]. The majority of arrhythmias and conduction disturbances can be detected ...