Usually the time for layer change

Refueling time selection. To change the feed for laying hens, the best choice is to switch to laying hen feed when the laying rate reaches 2%-5%. The feed for laying hens should contain 3.4%-3.5% calcium and 18% crude protein. When refueling, if it is young chickens that are bred by natural light after summer, they often start production later, and they can start refueling at 18 weeks of age; if it is a reserve chicken that is cultivated by natural light after winter, it is usually early. Change the material at 17 weeks.