The growth of chicken needs many elements and a variety of food combinations to promote growth.

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, 0/0% bran/kloc, 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 and swell it, grind it into slurry, mix it with 10 kg of bran, and put it in a jar or barrel for fermentation. It can produce 20-30 kilograms of fresh pupa maggots and feed 500 chickens 1 week when the sun is closed for 3 days in summer and in autumn and winter.