Abstract: The aim of the experiment is to study two kinds of additives in the same formula, on the growth and development of beef cattle tissues and organs of influence. Thirty heads Xinjiang brown were randomly divided into three groups, patients with the control group has the same food.TestⅠboars group adding 1% compound additive of beef cattle fattening feed.Test Ⅱ boars group adding 0.2% powerfeel. The experiment for beef bones and organs organization of growth, production method and meat performance make analysis. The results showed that test Ⅰ group, the test Ⅱ group compared with the control, at the waist, hip wide wide angle, blood weight were significant difference (P<0.05). In addition, in the fattening increase heavy, trunks, puremeat, superior quality meat sales gains profit the revaluation were 42.7,130.6,142.22,141.6 and -15.8,38.2,76.1,149.7 yuan.Therefore, two kinds of additives on the growth and development of the animal, muscle, bone and adipose tissue had certain regulation function. Powerfeel had increased beef fat metabolism, reduced body fat effect.It could be used as a safe, efficient feed additives used in the production of beef cattle fattening.

Key words: Xinjiang brown; powerfeel; additive; growth and development; high quality meat; carcass