关键词: 大头金蝇, 糖, 生殖力

Abstract: Objective To study effects of different food on fecundity of Chrysomya megacephala(Fabricius).MethodsCh.megacephala adult was reared under sex ratio(1∶1),number of eggs and death adults were recorded.Results The population of adults feeding on powered milk,granulated sugar,cane sugar,glucose and maltose reduced to 50% in(16.5),(86.0),(81.5),74.0,(74.5 d),respectively.Longevities of female were(17.4),(74.7),(74.4),(60.7),(63.9 d),respectively.Its oviposition period was(1.5),(38.4),(42.7),(39.3),(43.1 d).Eggs number of was(1.8),(717.1),(775.0),(437.6),(481.0),respectively.The peak of longevity,oviposition time,and number of eggs were found in the flies feeding granulated sugar,cane sugar,glucose and maltose,among which there were no significant differences in above factors among them,but significant differences with those of flies feeding powered milk.There was slight difference between longevity of male and of female.Conclusion The diet with sugar was the best adaptable to improve the fecundity ofCh.megacephala.