Due to the rapid growth and development of broiler breeders, the feed intake is large and the fat deposition is fast. In production, the feed distribution method of restricted feeding is usually adopted. The management of its uniformity is mainly achieved through limited feeding management. The limited feeding methods include limited, limited and limited time. Under chicken broiler battery cage conditions, the number of chickens per cage must be the same, each cage can be fed at the same time, and the feed is evenly distributed, which is the key to ensuring uniformity.

Vitamin supplements. Adding a variety of vitamins to chickens is to promote high-yield and stable production of laying hens. Among the various types of vitamins, vitamin D is especially needed. When the diet is chronically deficient, the egg in chicken battery layer cages production of the laying hens decreases, the eggshells become soft and thin, and the absorption of calcium is also seriously affected.