Lay-off broiler breeders are hens with low or without egg production at the middle of laying period. In order to obtain a better output from the lay-off hens existing in the flock, lay-off broiler breeders are being forced to molt at the middle of laying period. It is done while the laying hens existing in flock continue their production trend. With this method, the lay-off hens in the flock are identified, collected and kept in separate boxes in their house for 40 weeks. At the end of the collection (7 weeks), the lay-off hens of different houses are kept in one house and all laying hens of that house are taken back to their original houses. The lay-off hens from week 47 are molted regularly and produce in week 52. Numbers of eggs yield, fertile eggs yield and chicks yield per hen of molting flock at the end of week 66 were 5.44, 5.13 and 3.98 respectively. The net profit from sales of chicks yield of molting flock at the end of week 66 was 320109780 Rials, while the net profit per each molted hen was 2866.2 Rials, which is the net and extra revenue of suitable management of broiler breeder flock.
Key words: Molting, broiler breeder, profit, chicks yield, lay-off hen
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