Abstract: In order to study the effect of different proportion of wheat bran and corn straw on the Yellow powder larva growth performance trait, 1000 5 to 6-age Yellow powder larva were selected and randomly divided into five groups,the control group was fed wheat bran, testⅠ,Ⅱ,Ⅲ and Ⅳ groups were fed 20% wheat bran and 80% corn straw,40% wheat bran and 60% corn straw,60% wheat bran and 40% corn straw and corn straw, respectively. The results indicated that body weight, body length,protein content of the testⅠ and Ⅳ groups were significant differences compared with the control group (P<0.05). The body weight, body long,the protein content of test Ⅱ and Ⅲ groups were no significant differences compared with the control group(P>0.05),and economic benefits of test Ⅱ group increased by 15.15% per kilogram. Therefore,wheat bran and corn straw ratio in test Ⅱ group was the most suitable for breeding of Yellow powder larva.

Key words: corn straw; wheat bran; Yellow powder larva; growth performance