بررسی اندازه گیری انرژی متابولیسمی سبوس برنج و استفاده از آن در جیره مرغان تخمگذار تجارتی

Rice bran is and agricultural by - product which produces in large quantities in northern states of Iran. The use of Rice bran as an ingredient in layer ration was studied during a period of 13 weeks in an experiment using completely Randomized design and 6 diets with equal Ratio of energy to other nutrients containing 0,5, 10, 15, 20 and 25 percent of Rice bran were formulated. Daily feed intake, egg weight, egg production, feed conversion, egg gravity, body weight changes and feed costs of producing 1 kg of egg were calculated . The analysis of variance of data showed that the use of Rice bran Up to 25 percent hasn't significant effect on each of above triat, exclude egg weight and body weight changes (p<0/05). It was concluded that Rice bran at the level of 25 percent in layer Ration was economic and suggested.