Pupae of Face Fly as Food for Channel Catfish

Pupae of face fly (Musca autumnalis De Geer) were offered to channel catfish flngerlings fed outdoors in plastic pools. Other channel catfish fingerlings received rations of equal parts of face fly pupae and Purina Catfish Cage Chow (pellets) or pellets only. After 9 weeks of feeding, catfish from each pool were counted and weighed. Survival rates were 94. 97. and 93% and ratios of dry weight of food to increase in live weight of fish were 1.62, 1.77. and 2.29 for fish receiving pupae, pupae and pellets mixed, and pellets only, respectively. There were no statistically significant differences between these values (P=.05).