twenty four male lambs divided into four groups and were allocated to 90, 105, 120 and 135 days of fattening periods.at the end of each fattening period, lambs were slaughtered. the percentage of cold carcass on the basis of empty body weight in the mentioned periods were 57.0 ± 0.94, 57.5 ±1.7, 59.9 ±3.3 and 62.2 ±4.4,respectively(p

I. Two experiments involving 106 lambs were conducted to study the functioning of the oesophageal groove reflex in lambs sucking from either individual feeders or from a bulk dispenser. The effects on the performance of lambs given either a high-protein or a lowprotein creep feed in conjunction with either a ewe’s milk substitute, Ewelac, or a homogenate of calcium caseinate, Casilan, were stud...

The development of the rumen digestive functions was studied in lambs placed in sterile isolators at 1, 4, 8 or 9 days of age to define the role of the bacterial species that colonize the rumen just after birth. The values of the main rumen digestive parameters (pH, concentrations of volatile fatty acid, ammonia, lactic acid) in these lambs were close to those observed in conventional controls....

Narasin is an antibacterial agent that may change rumen fermentation. Two experiments were proposed to evaluate the efficiency of narasin inclusion for lambs fed a diet containing high amounts ground flint corn. Thirty rumen-cannulated wethers used nutrient digestibility, nitrogen balance, and metabolism (Exp. 1); forty-five performance 2) animals with corn diets. The experimental diets were: c...

in this study, we determined the effects of replacing different levels of alfalfa with pistachio hull (ph) on feed intake, digestibility of nutrients, rumen fermentative parameters, blood metabolites and nitrogen metabolism in balochi male lambs. three male lambs (35±2 kg live weight) equipped with ruminal and abomasual cannulas were randomly assigned into a 3 × 3 latin square design. experimen...

in order to investigate the effect of diets contained urea and molasses on fattening performance and blood urea nitrogen (bun) density of male lambs, 72 arabic male lambs were used in a completely randomized design with a 3×4 factorial experiment, for 90 days. the experimental diets contained; 0, 0.5, 1 and 1.5% of urea each with 0, 7.5 and 15% of molasses, in isoprotein and isocalaric diets. t...

The effects of defaunation on growth and digestion were measured in sheep fed fresh Digitaria decumbens grass cut at four stages of regrowth 14, 28, 42, and 56 days, and with different protein to energy (P/E) ratios. Two completely randomized designs trials (growth and digestion) were conducted using faunated animals, defaunated rams and protozoa free lambs. The digestion trial: eight faunated ...

Effects of partial docking on feedlot performance and body fat characteristics were studied in a fat-tailed sheep breed. Thirty-eight male lambs with an average weight of 4.44 ± 0.48 were randomly divided into two groups. The lambs in one group were partially docked at 3-4 h after birth, using rubber rings, and the lambs in another group remained intact (control). After weaning, 20 male lambs f...

During a 125-d experimental period, 24 Afshari × Kurdish male lambs initially weighing 25.2 ± 1.2 kg were grouped by BW and randomly assigned to treatments under a completely randomized design with a 2 × 2 factorial arrangement of treatments to evaluate the effects of feeding recycled poultry bedding (RPB; 0 and 200 g/kg DM) and the physical form of the diet (mash and block) on nutrient intake ...