To realize the recycling use of crop straws,artificial diets were fermented by mixing crop straw powder with wheat bran and used for mass rearing of house flies,Musca domestica(Diptera:Muscidae).The results showed that the efficiency of converting corn straw into dietary requirements by M.domestica was the best,followed by wheat straw and rice straw.The content of crude protein and crude fat of corn straw in artificial diets significantly decreased after insect feeding.Similar effect were found in the conte...