Effect of Phytase and Carbohydrase on Utilization of Parboiled Rice Polish for the Growth of Broilers

Abstract

A total of 192 d-old Arbor Acres broiler chicks were fed ad libitum up to 42 d of 16 isonitrogeneous and isocaloric diets of different combination levels of phytase (0, 750, 1000 and 1250FYT/kg) (FYT=Feed Grade Yield Treatment Unit) and carbohydrase (0, 80, 100 and 120ppm/kg) for a better utilization of parboiled rice polish (PRP) in broiler diet. The growth rate, feed conversion efficiency, survivability, meat yield and profitability increased almost linearly by using increased levels of mixed enzymes in PRP based diets. Therefore, it was concluded that it is feasible to reduce grain by using abundant PRP in ration with the supplementation of phytase and carbohydrase, and this treatment may be an efficient and economic way to improve performance of broiler as well as profitability.

Keywords

• broiler
• rice polish
• phytase
• carbohydrase
• growth
• profitability & meat yield