Effect of replacing fishmeal with caterpillar (Cirina butyrospermi) meal on the growth performance, feed efficiency, survival and body composition of Nile tilapia (Oreochromis niloticus) fry

10.29822/JFST.202209_49(3).0006

Alla Ndione；Jean Fall；Safietou Mbaye；Paul Mamadou Ndour；Sokhna Khady Lo Fall；Saloum Jatta；Abdoulaye Loum；Mariama Sagne；Abdoulaye Diouf；Diegane Ndong；Malick Diouf；Cheikh Tidiane Ba；Angela Chien

Oreochromis niloticus ； fishmeal caterpillar meal ； growth ； survival

臺灣水產學會刊

49卷3期（2022 / 09 / 01）

213 - 219

英文

This study investigated the effects of dietary fish meal replaced with caterpillar meal on the grwoth performance of Nile tilapia. Five isonitrogenous (355 crude protein) diets were formulated to replace 0 (D1), 25 (D2), 50 (D3), 75 (D4) and 100% (D5) fish meal with caterpilar meal. The experiment was conducted with fifteen 0.22g O. niloticus fry stocked in triplicate in each of 60 L glass tanks and fed with the treatment diets to satiation by hand three times (in the morning at 8:00 a.m., 1:00 p.m., and in the evening at 5:00 p.m.) for 8 weeks. The fish were first subjected to acclimatisation phase prior to the initiation of the trial. Fish was fed with treatment diets three times a day at a rate of 10% of their body weight for the first two weeks, then 8% for the next two weeks, then 6% and 4% thereafter until the end of the experiment. The final weigh, weight gain percentage and specific growth rate (SGR) of fish fed with diet containing 25% caterpilar meal to replace fish meal had significantly higher than those of fish fed 75 and 100% caterpilar meal to replace fish meal. Fish fed diets containing 0, 25 and 50% caterpilar meal to replace fish meal showed no significant difference in final weight, weight gain percentage and SGR. The lipid content in the body composition of the fish increased as the diets containing higher proportions of caterpillar meal. This suggests that replacing 25% of the fish meal with caterpillar meal is an appropriate choice for feeding Oreochromis niloticus fry.