What should be noted when restricting feeding of broiler breeder chickens?

First, before restriction, chickens that are underweight or weak should be removed or culled; second, since feather pecking is prone to occur during restricted feeding, beak trimming should be done before restriction; third, starting from four weeks, randomly sample and weigh once a week, calculate the average body weight, and use it as the basis for restricted feeding. Each time it is best to weigh 50 hens. When feed is limited daily, weigh in the afternoon; when feeding every other day, weigh on the no-feed day; fourth, during restriction, pay attention to the health status of the chickens. When the flock is sick, restricted feeding should be temporarily stopped, and individual sick or weak chickens should be picked out and raised separately; fifth, ensure that each chicken has enough feeding space and drinking space to prevent uneven satiety and hunger and uneven development; sixth, it should be combined with light control to achieve greater results.