Puller management
Hy-line commercial and parent-stock chicks adapt well to floor and cage-brooding systems the chicks require no special hatchery services except vaccination against marek's disease nevertheless a laying-hen flock has a major part of its potential performance determined during the first 17 to 20 weeks of its lifetime therefore special attention should be paid to the growing period to assure that the hens reach the laying house ready to deliver her bred-in performance potential mistakes mad in grow are very difficult if not impossible to correct in the laying house