396 yellow broilers at 1st day were divided into four groups with three replicates ,each of which included 33 animals.Control group was fed with basal diet,three tested groups were fed with 2.0%,1.0% and 0.5% Periplaneta americana for replacement of fish meal in basal diet. The experiment lasted for 70 days. Performance ,serum biochemical parameters and length of duodenum villus were investigated at 42th,70th.The results showed that daily feed intake ,daily gain and mortality had no significant differences ...
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