leptin (lep), the expression product of the obese gene produced primarily in the adipose tissue, is related to feed intake, growth and lipid metabolism. the aim of this study was to study the possible association between polymorphism of the lep gene with growth and carcass traits among three iranian sheep breeds of the shal, zandi and zel varieties. a total of 180 purebred animals of the shal, ...

This study was looking for the effects of energy levels and growth performance on physical characteristics Iranian lambs’ meat. Forty-eight male lambs (initial BW 31.6kg) 5-month age were assigned to a completely randomized design with factorial method includes fattening periods (12weeks 15weeks) metabolism (ME) (2.36 2.62 ME M cal/kg DM intake). Diets iso-nitrogenous (14.1 percent crud protein...

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 ...

introduction it has been estimated that pbp production based on fresh weight in iran is over 400,000 mt annually. pistachio by-products consist of 53.50% external hull (epicarp) with the remaining composed of leaves, mesocarp and kernel. the results of few studies showed feeding of low levels of pbp had no effects on sheep, dairy cow and goat performance. ensiled of pbp with peg, naoh and urea ...