Pay attention to the four hurdles in the three-layer cage of broilers in early spring

Broiler industry is one of the leading agricultural industries in Chengde County. The breeding capacity of broiler breeding base in the whole county reaches 70 million, and 50 million broilers are sold annually, covering 23 towns and 178 administrative villages in the county. Broiler breeding base mainly adopts three-layer cage breeding mode. Each chicken house raises 20,000 ~ 40,000 chickens, which improves the industrial concentration and reduces the land investment. In the early spring breeding process, we should pay attention to the four customs:

1. Temperature off. The three-layer cage is divided into upper, middle and lower three layers. There is a temperature difference between the layers. In early spring, the outdoor temperature is low and the temperature difference is large. Brood is generally in the highest layer, because the highest layer of the highest temperature, which is conducive to saving heat. On the first day of chicken arrival, the temperature should be controlled at 33℃~34℃, or the temperature can be adjusted according to the chicken status. When the temperature is appropriate, the chickens are evenly distributed, lively and active, and the appetite is strong; when the temperature becomes low, the neck is hunched and the heat source is concentrated. Squeeze each other, the body shakes; when the temperature is too high, water consumption increases, appetite decreases, breathing speeds up, neck feathers are water-soaked. During the first week, the temperature dropped to 30 ° C, and then decreased by 2 ° C every week.

2. Feeding off. After entering the house, the chicks should ensure that they can drink water within 2 hours. For some weak seedlings, they can drink water manually by dipping their mouths. The purpose is to let the chicks learn to drink water as soon as possible. Chicks first drinking water application 25℃ warm boiled water, add 5% glucose and 0.1% vitamin C in the water, water dispenser to wash frequently, the whole brooding period, drinking water can not be interrupted, from the brooding of the second day, drinking water to add anti-white dysentery drugs.

After drinking water for 2~3 hours, put the feed into the open plate for chicks to peck at, be sure to feed less frequently to prevent feed pollution and mildew. In the first 3 days strictly according to the feeding standard timing, quantitative feeding, prevent broiler growth speed is too fast, resulting in incomplete development of immune organs, so that the chicken later disease resistance is poor. For the first 10 days, feed 6 to 8 times a day. In order to make the chicks have a good feeding effect, feed them immediately but not yet eaten. Usually three days before slaughter, they can eat ad libitum.

3. Grouping. Three-layer cage breeding adopts whole brooding. When the density of chicks is too large, timely grouping shall be carried out to ensure uniform weight of chicks. The first grouping is generally 12~16 days old, and the second grouping is 25~28 days old. When grouping, the principle of "keeping weak and leaving strong" shall be mastered. Healthy chicks with large weight shall be placed in the lower layer, and weak chicks shall be kept. In early spring, due to the large temperature difference between the upper and lower layers of the chicken cage, the cage time can be postponed appropriately, and more than one in the lower cage can be placed to reduce the temperature difference between the upper and lower layers.

4. Disinfection off. Clean the ground every day in the breeding process to reduce the stimulation of dust and chicken fluff to respiratory tract. Disinfect the chickens every other day in the future. Select several disinfectants alternately. Avoid vaccination period for more than 24 hours during disinfection.

Chengde County Agriculture and Animal Husbandry Bureau Wang Haichun Li Chengcheng