Physiological characteristics of broiler breeder chickens during breeding period

The breeding period of meat breeder chicken: the first is still in the period of rapid growth and exuberant development, the development of various organs is complete and the function is sound; the second bone and muscle are in the strongest growth period, but the opposite growth gradually decreases with the increase of age, and the relative growth in the breeding period is smaller than that in the chick stage; the third feather is changed several times and finally grows into feathers; the fourth fat deposition increases with age, which is easy to cause overfat. If it is not inhibited, it will affect the egg production and eggshell quality in adulthood; fifth, the reproductive system develops to sexual maturity in the middle and later stages of breeding.