Summer heat, the key to feeding and management of laying hens is to prevent heatstroke and cool down, promote appetite and ensure adequate nutrient intake. When the temperature is higher than 25 °C, chickens drink more water, feed intake decreases, egg production rate begins to decline, eggshell thinning, small eggs and broken eggs increase. The following measures can be taken to increase the egg production rate. Reduce the radiant heat and heat of reflection in the house, for example, using roofing materials made of heat-insulating materials. The chicken house is painted on the sunny side and the roof of the house is covered in white. The interior is equipped with a shed; the ventilation is increased, and vertical ventilation is adopted when the temperature exceeds 30. °C, wet curtain and spray cooling method are adopted. Wet curtains are installed in the air vent of the chicken house. The air cooled by the wet curtain flows through the chicken house in the longitudinal direction and removes the metabolic heat produced by the chickens in the house. The temperature can be reduced by 2-4°C. The effect is better. Adjust the dietary concentration according to the feed intake of the chicken, reduce the feed energy level and raise the protein level. Generally, the crude protein level will increase by 1%-2%. Considering the influence of the ambient temperature on the feed intake and eggshell quality, the feed should be increased in summer. In the calcium content, calcium can be used shell powder, feeding at dusk, the general amount of feed is 1% -1.5% of the diet; should ensure adequate drinking water, sink or drinker should be cleaned daily; timely defecation, Because the water content of chicken manure is generally more than 80%, the humidity in the house will increase, affecting the heat dissipation; 0.02% vitamin C may be added in the feed or drinking water, or some other additives that resist heat stress, such as electrolytes, the best feeding time is Sooner or later.
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Egg-laying chickens have tips in summer