What are the reasons for the decrease of feed intake of laying hens in summer?

There are generally the following reasons

1. Calcium deficiency and poor physical development caused by various reasons are the direct causes of the disease. When laying eggs rises rapidly or at the peak of laying eggs, chickens need a lot of calcium and phosphorus, especially in summer when the temperature is high, which will reduce the intake of chickens and lead to insufficient intake of calcium, phosphorus and vitamins.

2. In summer, chickens drink a lot of water, which accelerates the movement of intestinal contents and causes a large loss of acidic substances, causing metabolic alkalosis. Due to the acceleration of respiratory frequency in summer, a large amount of CO2 is lost, which leads to the increase of PH value in the body and respiratory alkalosis.

3. The disease is easy to occur when there is poor ventilation in the henhouse and no cooling measures. In hot weather, many chicken farmers turn on the fan to cool down during the day and night, and often turn off the fan after turning off the lights. Moreover, after stopping the light at night, chickens can't drink water normally and are more susceptible to high temperature.

4. The stone powder in the feed is too fine, and the stone powder is too fine to be absorbed and excreted quickly, and the eggshell is mainly formed at night, so when the eggshell is formed, a large amount of calcium has been excreted, resulting in calcium deficiency. If it goes on for a long time, bone calcium will be used, which will lead to fatigue.

5. The feeding method is unreasonable. Under the high temperature environment in summer, feeding is too frequent, too many times, and the feeding amount is too large, which will increase the burden on the heart, liver and kidney of the chicken, which will cause the metabolic disorder of the chicken and induce the disease.