Metabolic energy budgeting (MEB) was used to evaluate evolution over 30 years (1980–1981 2010–2011) in New Zealand southern North Island ‘hill country’ sheep and beef cattle systems. MEB calculates required by animals for body weight maintenance, gain or loss, pregnancy, lactation estimate the system feed demand thereby provide a basis calculating conversion efficiency. Historic production syst...

Xenograft models of human hematopoiesis are essential to the study of the engraftment and proliferative potential of human hematopoietic stem cells (HSCs) in vivo. Immunodeficient mice and fetal sheep are often used as xenogeneic recipients because they are immunologically naive. In this study, we transplanted human HSCs into fetal sheep and assessed the long-term engraftment of transplanted hu...

Continuous exposure to an aversive mixture was investigated as a means of maintaining aversion to vermeerbos in sheep subjected to the social influence of non-averted sheep. The use of an aversive mixture was based on a hypothesis that continuous exposure to an acceptable aversive mixture (containing both the aversive substance and the identification factors of vermeerbos mixed with maize meal)...

ABSTRACT: Poisoning by Trema micrantha commonly causes hepatocellular necrosis in cattle, sheep, and goats edema cerebral hemorrhage horses. This plant can cause toxic pneumopathy there is only one report of the natural form experimental State Rio Grande do Sul. study aimed to an outbreak respiratory poisoning T. sheep. Six sheep developed clinical signs after consumption four them died two rec...

In two separate experiments, test sheep were inoculated with a mixture of four genetically modified strains of Butyrivibrio fibrisolvens, which attained a combined population level of 1 06-10’ cells per ml in each animal. The bacteria had been modified to express the enzyme fluoroacetate dehalogenase. Uninoculated sheep were used as controls. Experiment I included two Merino/ Border Leicester c...

In this study, 640 cattle and 742 sheep slaughtered at twelve abattoirs in Thrace were investigated for hydatid cysts. The infection rate of hydatidosis was 11.6% in cattle and 3.50% in sheep. The cysts were found in 3.15% of 127 calves ( < 1 year old), in 13.6% of 513 cattle (between 1-10 years old), in 2.64% of 720 lambs ( < 1 year old) and in 31.8% of 22 sheep (between 1-6 years old). The in...

Sheep pox and goat pox are viral diseases of sheep and goats characterised by fever, generalised papules or nodules, vesicles (rarely), internal lesions (particularly in the lungs), and death. Both diseases are caused by strains of capripoxvirus, all of which can infect sheep and goats. Although most of the strains examined cause more severe clinical disease in either sheep or goats, some strai...

This experiment was carried out on 8 ha of Panicum maximum cv. Tanzania pastures, with rotational grazing consisting of 7 days of occupation and 21 days of rest. Four treatments were evaluated: cattle grazing alone (BOV), sheep grazing alone (OVI), cattle and sheep grazing simultaneously (SIM) and cattle grazing followed by sheep (alternate - ALT). Twenty heifers and 30 male Santa Inês lambs we...

Sheep injected every 2 weeks with heterologous GBM and Freund's adjuvant by any one or combination of the following routes: intramuscular, subcutaneous, or intradermal, develop uniformly a fulminating, extracapillary glomerulonephritis, invariably fatal within 27 to 90 days after the first injection. The chief histologic feature is marked fibroepithelial proliferation of Bowman's capsule with c...