The reasons for implementing feeding programs for males and females, feed allocations and the effects of obesity on egg production and hatchability is explained in the light of the physiological processes of fertilisation in the hen and male fertility.

Ventilation of the breeder house covers concepts such as the thermoneutral zone, evaporative cooling, the limitations of mist and roof sprayers, calculation of ventilation rates and importance of lighting programs. The need for strict biosecurity and principles of vaccination and immune development will be dealt with as well as the reasons for regular egg collections, handling and storage practices and the effects of these on hatchability and embryo survival.

Practical work: Dissection of male and female breeder birds and the identification of the functions of the reproductive organs. Identifcation of fertile and infertile eggs at oviposition.