• After 7 days of age around 5 hours of darkness may be optimum (4-6 hours). • There is no reduction in growth rate to 39 days and possibly an increase to 49 days of age. Feed conversion efficiency improves particularly in the later stages of growth.
• After 7 days of age around 5 hours of darkness may be optimum (4-6 hours).• There is no reduction in growth rate to 39 days and possibly an increase to 49 days of age. Feedconversion efficiency improves particularly in the later stages of growth.