BACKGROUND The variability in the clinical or pathological presentation of transmissible spongiform encephalopathies (TSEs) in sheep, such as scrapie and bovine spongiform encephalopathy (BSE), has been attributed to prion protein genotype, strain, breed, clinical duration, dose, route and type of inoculum and the age at infection. The study aimed to describe the clinical signs in sheep infecte...

myostatin or growth and differentiation factor 8 (gdf8), has been known as the factor causing double muscling phenotypes in which a series of mutations make the myostatin protein inactive, hence disabling it to regulate the deposition of muscle fibre. this phenotype happens with high frequency in a breed of sheep known as the texel. quantitative trait loci (qtl) studies show that a portion of t...

This prospective, non-randomized, controlled experimental study looks at the effects of N(omega)-monomethyl-L-arginine (L-NMMA) on haemodynamics, oxygen transport and regional blood flow in healthy and septic sheep, and compares these effects with those of noradrenaline (NA; norepinephrine). All sheep were chronically instrumented. Six sheep received L-NMMA (7 mg.kg(-1).h(-1)), six sheep receiv...

sixty sheep abomasums were randomly collected from shahrekord abattoir between april and september (2006). age and sex of the sheep were registered. all of the abomasums were transported to laboratory, nematodes, which were presented inside them, collected, and after calculating, their species and genus, were specified. abomasums that were contaminated by ostertagia or had gross damages were se...

The aims of the present study were to investigate (1), the potential anthelmintic properties and (2), the nutritional consequences of commercially available condensed tannins on parasitised sheep fed, ad libitum, either a high- or a low-protein food. For this purpose, forty-eight previously parasite-naïve sheep (n 12) were infected with 2000 Trichostrongylus colubriformis larvae/d for a 67-d ex...

In March, 1948, Rose and others described a test for rheumatoid arthritis which depended on the ability of serum from patients with rheumatoid arthritis to agglutinate " sensitized " sheep erythrocytes in much higher titre than normal sheep erythrocytes. The authors reported results in 110 patients, of whom 27 had active rheumatoid arthritis and 16 inactive rheumatoid arthritis, 3 Still's disea...

cystic echinococcosis (ce) is one of the most important parasitic zoonosis worldwide. due to the high recurrence rate of the disease after surgery, follow up of the patient is necessary. the aim of current research was to assess the performance of western blotting (wb), using sheep hydatid fluid, for serological diagnosis and post-treatment monitoring of human ce.serum samples obtained from 50 ...