A resource flock of 362 F2 lambs provided phenotypic and genotypic data to estimate effects of callipyge (CLPG) genotypes on growth, slaughter, and carcass traits. Lambs were serially slaughtered in six groups at 3-wk intervals starting at 23 wk of age to allow comparisons at different end points. Probabilities of CLPG genotypes were calculated at a position 86 cM from the most centromeric mark...

A resource flock of 362 F2 lambs provided phenotypic and genotypic data to estimate effects of callipyge ( CLPG) genotypes on growth, slaughter, and carcass traits. Lambs were serially slaughtered in six groups at 3-wk intervals starting at 23 wk of age to allow comparisons at different end points. Probabilities of CLPG genotypes were calculated at a position 86 cM from the most centromeric mar...

1. In two experiments samples of blood and organs were taken from newborn and young lambs born to five groups of ewes that received different dietary iodine (I) levels. Dietary I contents (mg/kg dry matter [DM]) in pregnancy and lactation, respectively, were: Experiment 1--0.36 and 0.26 for group C, 2.01 and 1.94 for group D; Experiment 2--0.13 and 0.12 for group A, 0.22 and 0.20 for group B, 1...

An experiment was conducted to investigate the effect of different crude protein (CP) levels on the growth performance of Awassi lambs and Black goat kids. Forty lambs and 40 kids were randomly selected and allocated to separate pens of equal size for 75 days. Each group was fed one of four rations containing 12, 14, 16, or 18% CP. Final weights and gains for lambs were higher (P<0.001) than th...

Giardia duodenalis is a protozoan that infects a variety of vertebrates. It is a major cause of diarrhea in agricultural animals. There have been reports of clinical signs in cattle and sheep, which include diarrhea, dehydration and weight loss, however; there are limited drugs available for the treatment of giardiasis in animals. In this study, we compared the therapeutic effect of 20 mg alben...

Low birth weight (LBW) is associated with increased risk of adult cardiovascular disease and this association may be partly a consequence of early programming of the renin-angiotensin system (RAS). We investigated the effects of LBW on expression of molecules in the RAS and cardiac tissue remodeling. Left ventricular samples were collected from the hearts of 21 days old lambs that were born ave...

Because twin (and sometimes triplet) births commonly occur in sheep, interactions between foetuses of opposite sex may occur during life in utero and affect adult productive or reproductive performance. This was investigated by comparing growth, milk production and reproductive features of female lambs born as twins with a sister (FF) or a brother (FM) or born as triplets with two sisters (FFF)...

This study was carried out to evaluate the effect of high dietary energy as dry fat and protected methionine on growth efficacy, feed intake and efficiency and carcass parameters of Awassi lambs during finishing stage. Twenty four Awassi lambs (3-4 months old) were distributed equally into four treatments groups as follow: Control (NRC requirements); T1 (High energy 3.0 Mcal ME/kg); T2 (high en...

OBJECTIVE This study evaluated inclusion of buckwheat silage to the diet of growing lambs in terms of meat quality as compared to maize silage. METHODS Buckwheat, rich in total phenols (TP, 33 g/kg dry matter [DM]), was harvested at the end of the milk stage and ensiled in 40 kg plastic bags after wilting (294 g/kg silage DM). A total of 18 growing lambs (21.6±1.2) were individually fed isoni...