MITCHELL [1924, 2], using young growing rats as experimental animals, found that the biological value of proteins was lessened as the proportion of the protein in the diet was increased. He considered that this result might in part be due to the fact that proteins could be used more economically for maintenance than for growth. When supplied in the diet in a low proportion, almost all the prote...

background: identifying the potential of livestock and forage plants of each region is a way to compensate the lack of forage, and efficient use of edible resources of the country. milk thistle is a medicinal plant which may be used as fodder for native livestock of khuzestan province. objectives: the purpose of this research was to study  the effects of different levels of milk thistle on rume...

Abstract Pigs [n = 882; initial body weight (BW) of 33.2±0.31 kg] were used to evaluate the effects different bones and analytical methods on assessment bone mineralization response dietary P, phytase, vitamin D in growing-finishing pigs. Pens pigs (20 pigs/pen) completely randomized 5 treatments with 9 pens/treatment. After feeding diets for 112-d, nine pigs/treatment harvested analysis. Treat...

The present work was intended to analyse the chemical composition and oxidative stability of the muscle biceps femoris and adipose tissues from Iberian pigs fed different finishing diets: free-range feeding on grass and acorns in a 'Montanera' traditional system (MON), fed in confinement with a mixed diet containing high-oleic sunflower oil (115 g/kg of diet) and supplemented with 250 mg/kg α-t...

The purpose of this experiment was to investigate the effect of one-week feeding of flaxseeds (rolled/extruded) on performance, n-3 fatty acids and oxidative stability of meat in broiler chickens. Seven pelleted diets (36-42d) were provided in a 3×2 factorial arrangement with three flaxseed levels (5, 10, and 15%) and two processing methods (rolled/extruded) and a zero flaxseed control diet. Be...