The content of protein in the dry matter of fly maggots is 50% ~ 6%, and the fat accounts for 10% ~ 15%. The effect is remarkable in fish, livestock and poultry breeding. It is reported that feeding the first-year-old grass carp with fly maggot powder instead of Peruvian fish meal, the average weight gain per tail per month is 20.9 grams, which is 25. 1% higher than that of fish meal group. The cost per kilogram of fish is 29.8% lower than that of fish meal group.

(1) Fish culture and special aquatic products

Fresh maggots can be fed directly, or mixed with other feeds, or dried and ground into maggot powder and mixed with other feeds to make granular feed. When feeding fish directly, the food table should be far away from the pond ridge to prevent individual maggots from swimming to the ridge edge and pupating after landing. The dry weight of feed accounts for about 10% of the mixed feed.

(2) Raising chickens

Fresh maggots are scalded with boiling water, dried and ground into powder, and then the maggot powder is mixed with other feeds to feed. Each chicken is fed 0.3-0.5g of chicks, 0.8-1.2g of adult chickens and 0/.7-2g of adult chickens every day.

(3) Raising pigs

Scalded with boiling water after death or mixed with maggot powder for feeding.