The end of the rearing phase and start of lay is a critical period for pekin duck breeders as they have to face several challenges. From 17 weeks of age up to 32 weeks of age, breeders have to finish up their growth, start their egg production and reach peak of lay. Then, in case of transfer from young breeder shed to layer building, they also have to adapt to a new environment. During this period, both males and females are also developing their reproductive organs and will reach their sexual maturity.In view of these challenges, management must adapt to overcome these events. Future performances of the breeders will definitely be influenced by management during this period.
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