1. Picking the youngest The first picking should be carried out when the chick reaches the brooding room. The weak chicks and young chicks should be single-fed. The remaining chicks should be eliminated to purify the chickens. The second picking is carried out at the age of 6 to 8 days of the chicks. It can also be carried out when the chicks are immunized for the first time. Small and poorly growing chicks are isolated and fed separately. Second, group management 1. Size groups. Groups can be roughly grouped by visual inspection. It is best to use the automatic dial scale, marking the normal range on the dial. Close the lights at night, take a folded net to separate the chickens, and conduct group management. When grouping, a group transition or group expansion is combined. 2. Strong and weak groups. The easiest way is to drive the chickens aside in the sheds, seduce and drive them through the water, and use the chickens in front as strong groups, the rear chickens as weak groups, and the middle ones as general groups. If combined with a certain time of water, broken materials, grouping will be better. 3. Healthy grouping. In other words, the diseased chickens and chickens with poor traits were removed from large groups and kept in isolation. The diseased chicken was quiescent and his eyes closed. He was living alone and his feathers were fluffy. His jaws, legs and legs were dark. Healthy chickens have large eyes and bright, lively, responsive, shiny hair and translucent skin. As an experienced breeder, you should always inspect the flock and remove the frail chickens in time to observe, treat, or dispose of them individually. This is a powerful measure to clean the flock and prevent chicken diseases. 4. The male and female groups. Male and female broilers have different physiological bases, and therefore require different environmental, nutritional, and conditional responses. Roosters grow faster than hens. The weight growth rate of the rooster after 56 days of age declines, and the weight gain of the hen after 49 days of age declines. Therefore, broiler chickens should be reared in groups of males and females, and the male and female broilers can be rearranged separately after rearing to better improve feed utilization. The simplest way of splitting the male and the female is to distinguish the male and female when the chicken grows to about 21 days of age, from the size of the comb, the height of the chicken leg, the size of the body, and the activity.
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