1. Disinfection

The chicks are thoroughly cleaned and disinfected 5 days before entering the site, avoiding corrosive disinfectant such as caustic soda to prevent equipment damage, then fumigation with formaldehyde, and sealing the doors and windows. After 24 hours, the window is ventilated. Personnel must be strictly disinfected to avoid destroying the disinfection effect. The trough and drinking fountains are cleaned and disinfected. After the chicks arrive, the ground is cleaned every day to reduce the stimulation of the respiratory tract by dust and chicken fluff, and the chickens should be disinfected every other day. Several disinfectants can be used alternately, and the vaccination period should be avoided for more than 24 hours.

2. Temperature

There is a temperature difference between the three-layer chicken battery cages in the upper, middle and lower layers, and the lower the outdoor temperature, the greater the temperature difference. Brooding is generally at the highest level, because the highest temperature is the highest, which is conducive to saving heat. The chicks enter the field on the first day, the temperature is controlled at 33 ~ 34 ° C, but also according to the state of the chicks to adjust the temperature. When the temperature is suitable, the flocks are evenly distributed, active and active, and the appetite is strong; when the temperature is low, the neck is constricted and concentrated to the heat source. Squeeze each other, the body trembles; when the temperature is too high, the amount of drinking water increases, the appetite decreases, the breathing speeds up, and the neck feathers are soaked. In the first week, the temperature dropped to 30~C, and then decreased by 2°C every week. The density of three-dimensional culture was large, which was 1~2°C lower than the flattening temperature. It should avoid the heat stress and the food intake decreased.

3. Grouping

Three-dimensional cultured broiler chickens use the whole sports chicks. When the chicks are too dense, they should be grouped in time to ensure that the chicks are evenly weighted. The first group is usually 12 to 16 days old, and the group is too early. Because the body size is too small, it is easy to grow in the cage gap. Drilling also wastes space and wastes energy. The second grouping, at 25 to 28 days of age, adopts the principle of “remaining weak and not staying strong” when grouping, and the important young chicks are placed in the lower layer, and the weak chicks are left behind. In summer, due to high temperature, it can be properly caged in advance. In winter, due to the large temperature difference between the upper and lower layers of the cage, the poultry battery cages time can be appropriately postponed, and one more in the lower cage to reduce the temperature difference between the upper and lower layers.

4. Ventilation

The key to successful aquaculture is ventilation, reasonable ventilation, elimination of harmful gases, temperature control, and reduction of ascites, chronic respiratory diseases and colibacillosis. The density of the three-dimensional farming unit is large, so ventilation is more important. Within 24 hours after entering the farm, the chicks can be ventilated due to the large space of the whole sports. As the age of the chicken increases, the ventilation volume is gradually increased, and the position and size of the air inlet are adjusted. Day, night, cloudy, sunny, spring, summer, autumn and winter. It is necessary to constantly adjust in a timely manner to achieve the feeling of no smell, no glare, no oxygen deficiency and more comfort in the house, to create a good growth space for the chickens, enhance the body's disease resistance and reduce the occurrence of diseases.