The high temperature and high humidity environment in summer can easily cause strong heat stress response in chickens, such as lowering the chicken's immune system to cause diseases, lowering the appetite of broilers, and decreasing the production efficiency of chicken farms. Therefore, in the summer, according to the characteristics of the weather and the growth characteristics of chickens, corresponding coping methods should be made so that the chicken farms can maintain objective productivity in the summer.
First, cooling moisture
The body temperature of chickens is higher than that of ordinary animals, and the heat dissipation is more affected by the ambient temperature, and the humidity increases the difficulty of heat dissipation. Therefore, we must pay attention to cooling and moisture. Cooling measures include greening and shading outside the house, whitewashing the house to reduce heat radiation, ventilation and confinement of the house, opening of chicken house windows, skylights, conditional installation of electric fans, and ventilation of the wet curtain. Decreasing the density of chickens in a chicken house also helps reduce the temperature.
Second, feeding and management
Feeding time
Feed on a relatively low temperature morning or increase feeding time by 11:00-12:00pm for one hour.
2. Diet
Feed high-quality fresh pellet feeds to increase appetite for broilers; adjust diets: increase protein and vitamins, especially methionine and lysine levels; feed in summer is easy to mold; feeds must be given mildew
3. Heat stress additive
When the temperature is particularly high, baking soda can be added, which can significantly reduce the respiratory alkalosis caused by rapid breathing; in the feed can be added with vitamin C, vitamin E and other heat stress buffer; supplement in drinking water 0.1-0.2% potassium chloride helps reduce the body temperature of broiler chickens and promotes growth; some Chinese herbs may be added to relieve or treat heat stress; provide sufficient water.
Third, environmental health
1. The chicken house is sterilized once a day. Use safe disinfectants for chickens and people, and be aware of the effectiveness of disinfectants. The chicken house is cleared of manure on time, and it is treated as pollution-free. It can remove manure three times a week and automatically scrape manure twice a day to change the environment within the house. This has obvious effect on raising the production level.
2. The chickens entering and leaving the vehicles and personnel must implement the disinfection work. The chicken farm site should also be disinfected once a day, and 2-3 disinfectants should be used in turn.
3. During the summer, it is necessary to pay attention to disinfection within the waterline, which is generally disinfected once a week.
4. The litter should be kept dry and soft, and the humidity inside the house should not be too high, reducing the breeding of mosquitoes and flies.
Fourth, disease prevention and control
Do a good job in epidemic vaccination, such as white peony, gastroenteritis, infectious bursal disease, chicken Newcastle disease, infectious bronchitis, coccidiosis.
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