(2) 11 to 20 days old chicks, each chicken daily grams of material for the age + 1. such as 14 days old chicks, each chicken daily material is 14 + 1 = 15 (grams).
(3) 21 to 50 days of age of the chick, each chicken daily grams of material and the age of the chick is equal. For example, 25-day-old chicks, the daily amount of material per chicken is 25 grams.
(4) 51 to 150 days of age of the chicken, each chicken daily amount of food for 50 + (age - 50) ÷ 2. Such as 100 days of age of young chickens, each chicken daily amount of food for 50 + (100 - 50) ÷ 2 = 75 (g).
(5) 150 days of age and above the breeding chicken, each chicken daily consumption can be stabilized at more than 100 grams.