Growth and development of lucilia cuprina larvae fed by different organ tissues

Abstract:

Objective：To research the growth and development of lucilia cuprina larvae fed by different organization sources. Methods：Under the condition of constant temperature（26 ℃）and relative humidity（70%），muscle tissue，hepatic tissue，brain tissue，muscle and fat mixture（6∶4） were used to feed lucilia cuprina larvae. Length and weight of larvae and were measured at an interval of 12 h while length and weight of pupa were measured after eclosion. Development stages of larvae，mortality of larvae and pupa as well as sex ratio of adults were recorded. Results：Growth was retarded in 40% fat mixed group than in the other three groups，achieving maximum individual delay time of 24 h. Larvae body length of hepatic tissue group（15.02±1.39） mm and 40% fat mixed group（14.85±1.43） mm were statistically shorter than those of brain tissue group（17.53±2.08） mm and muscle tissue group（16.82±2.15） mm（F=5.440，P=0.003）. Larvae body weight of hepatic tissue group（72.8±14.2） mg and 40% fat mixed group（70.4±15.4） mg were statistically lighter than those of brain tissue group（89.6±19.2） mg and muscle tissue group（85.9±16.7） mg（F=3.320，P=0.030）. Pupa body weight and body length of 40% fat mixed group were statistically lighter and shorter than those of brain tissue group and muscle tissue group（F=7.890，P=0.001；F=9.280，P=0.001）. Larvae and pupa mortality of 40% fat mixed group were statistically higher than that in the other three groups（F=3.470，P=0.040；F=4.720，P=0.035）. Conclusion：Lucilia cuprina larvae fed by 40% fat mixed food have longer growth and development period. Body weight and body length of larvae and pupa are lighter and shorter in hepatic tissue group and 40% fat mixed group than in the other groups.