(a) Preparation before Brooding
The brooding house should be sheltered from the wind and have warmth and ventilation facilities. 1 week before hatching, the inside and outside of the house should be cleaned and rinsed cleanly. The surrounding walls should be brushed with 10% to 20% lime water. The floor corners, troughs, drinking fountains, etc. should be disinfected with 2% caustic soda solution. After 1 hour, clean water is used. Chongjing, 28 milliliters of formalin per square meter and 14 grams of potassium permanganate, closed fowls fumigation, including drinking fountains, trays, buckets, litter, cages and other brooding facilities. In addition, preparations such as feed and vaccines should be done.
(B) brooding technical points
1. Brooding methods: There are plane brooding (ground brooding, online brooding), and sports brooding.
2, brooding temperature and humidity: brooding temperature should be: the first week of age 33 °C -35 °C, the second week of age 30 °C -33 °C, after a weekly decline of 2 °C, until dropped to 18 °C - 20 °C to.
Humidity for brooding should be 65% of the first week of age, 60% of the second week of age, and about 55% of the third week of age.
3, open food and drinking water: After the chicks enter the house, drink water and open food in time, first open the water after drinking. One-week-old chicks avoid cold water and require cold boiled water. The water temperature is close to the temperature. Use a 5% sucrose solution and drink 2 to 3 days. It is best to eat food three hours after the chicks drink water, because the meconium in the chicks is basically drained and there is hunger. During the start of eating, the chicks can be sprinkled on the newspaper evenly so that the chicks can eat freely and feed less. Feeding 6 times/day -8 times/day within 7 days of age, 4 times/day to 6 times/day after 7 days of age, when 80% of the chicks eat 80% satiation, the fodder can be withdrawn, this will not make Chicks are under-fed or over-fed, allowing them to maintain a strong appetite. In order to increase the digestive capacity of chicks, a small amount of fine sand is added to the feed from the age of 10 days, or fine sand is put in the pan for its feeding.
4, light and ventilation: the chicks give 24 hours before the first 3 days of light, light intensity of 2.7 watts per square meter, light bulbs set to be reasonable, evenly distributed, in order to facilitate food intake and drinking water; from the fourth age to the second The age of 18 hours of light was used, but the light intensity was reduced to 1.3 watts per square meter. Afterwards, the weekly lighting time is shortened by 2 hours until natural lighting is used. Excessive light may cause stress to the chicks. Excessive light will cause the chicks to reduce their feed intake and fail to achieve the expected weight.
When the weather is warm at noon, you can open the window properly, lift the roller blinds, or use a fan to change the air, and make sure that people do not feel odor, no pungent nose, no eyes or eyes, and no change. Avoid blowing thief wind and cold wind directly to the chicks.
5. Feeding density: 30-40 eggs per week before 2 weeks, 20 eggs after 2 weeks.
6, health and epidemic prevention: Chicken immune system is not developed, prone to diseases, especially infectious diseases, once it is difficult to control. Therefore, a brooding house is required to keep the same chicks of the same age and age, and to transfer them at the same time. And in strict accordance with the scientific immunization procedures, do a good job of immune prevention. To reduce the stress caused by each immunization, appropriate amounts of vitamins can be added to the water. The chicken stage should focus on prevention and control of white peony disease. Within 3 days after hatching, 10001U of penicillin per chick should be used for drinking, and anticoccidial drugs should be added to the feed.
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