1. Formula of chicken feed:
Formula of chicks (1 ~ 60 days old): ① corn 62%, bran 10%, bean cake 17%, fish meal 9% and bone meal 2%. ② 60% corn and 10% bran,
22% bean cake, 6% fish meal and 2% bone meal.
Formula of chicks (6 1 ~ 120 days old): ① corn 55%, bran 20%, bean cake 7%, cottonseed cake 5%, rapeseed cake 5%, fish meal 5%, bone meal 2%, shellfish meal 1%. ② Corn 66%, bean cake 18%, sunflower seed powder 1 1%, fish meal 3%, bone meal 1.5% and salt 0.5%.
Feed formula in laying period: ① corn 56%, miscellaneous grains 10%, bran 6%, bean cake 17%, fish meal 5%, shell powder 3%, clean stone 3% (methionine 0. 1%, salt 0.4%). ② 68% corn, 6% bran, 8% bean cake, 10% fish meal, 2% bone meal and 6% shellfish meal.
2. Processing method and feeding amount of fly maggot feed: take 5 kg of soybean, soak it to make it swell, then grind it into paste with 10 kg of bran, and put it into vat or barrel for fermentation. Exposure in summer for 3 days and in autumn and winter 1 week can produce 20-30 kilograms of fresh pupa maggots, which can be used for 500 chickens (ducks) to overeat 1 week.