Twenty-seven 4to 6-month-old crossbred ewe and ram lambs were assigned at random within sex to dosages of 10, 20 or 30 mg of cyclophosphamide (CPA), a chemical defleecing agent, per kilogram of body weight. Erythrocyte and plasma acetylcholinesterase (ACHE) activities were measured in jugular blood before CPA treatment and 1, 5, 9, 13, 17, 2 i and 26 days thereafter. As in man, both plasma and ...

The weighing records of 18 crossbred females with average live weight of 14.7 ± 3.14 kg were analyzed to study the relationship of the growth of crossbred hair sheep with some zoometric measures. The weight was established and took the measures thoracic perimeter, cannon perimeter, body length, neck length, hip amplitude, ischial amplitude, withers height and croup height. All parameters were s...

Foot-and-mouth disease (FMD) and bluetongue (BT) are two of the most devastating viral diseases affecting domestic wild ruminants. They cause significant economic losses, vaccination is important method for combating both FMD BT. Simultaneous vaccinations crucial animal welfare as well labor cost savings. No reports were found on simultaneous administration BT vaccines to sheep. This study eval...

This paper reviews research being undertaken by ILRI and collaborators to identify Quantitative Trait Loci (QTL) for resistance to gastrointestinal (GI) nematodes in the resistant East African Red Maasai sheep and in inbred strains of mice. Six F1 rams, crosses of Red Maasai (resistant) and Dorper (susceptible) sheep, were bred and then backcrossed to pure Red Maasai and Dorper ewes to produce ...

Naturally fauna-free crossbred rams approximately 5 mo old, 49.3 +/- 1.88 kg live weight, were allotted to four groups. Two groups remained fauna-free, whereas the other two groups were faunated. A diet based on corn silage-soybean meal containing either a low or a high Cu concentration (7 or 15 micrograms/g dry matter) was fed ad libitum to the two groups for 197 d. The rams were killed at the...

We aimed to compare the measurements of sheep ruminal pH using a continuous telemetry system or a bench pH meter using sheep with different degrees of ruminal pH. Ruminal lactic acidosis was induced in nine adult crossbred Santa Ines sheep by the administration of 15 g of sucrose per kg/BW. Samples of rumen fluid were collected at the baseline, before the induction of acidosis (T 0) and at six,...

Despite indications of a considerable spread of Maedi-Visna among sheep flocks in Germany, prevalence studies of this important infection are hardly available. Prior to any health schemes and guidelines, knowledge about regional disease distribution is essential. Depending upon herd size, 70 farms were randomly selected, of which 41 cooperated. A total of 2229 blood samples were taken at random...

Thirty crossbred wethers (60 kg avg initial wt) were used to study the time-dose response to dietary Se as sodium selenite (Na2SeO3). Sheep were fed a basal diet (.20 mg/kg Se, M basis) for 10 d; three wethers were killed and tissues were collected for controls. The remaining 27 sheep were assigned randomly to diets supplemented with either 3, 6 or 9 mg/kg Se (as-fed basis) from reagent grade N...

The study presented some haematological parameters and production characteristics of novel crossbred Romanov × Hissar purebred sheep. A number biochemical tests were performed to assess the level adaptation F1 progeny local rearing conditions evaluate its potential economic benefits for industrial production. newly created crossbreed demonstrated significant increase in carcass characteristics,...