Two-thirds of breeding units are badly lit

Many problems related to poor sow reproductive performance are caused by poor lighting. Improvements can be noticed when applying adequate lighting measures. One of the commonest ‘call-out’ jobs I have been asked to tackle across the world over the past 30 years has been poor reproductive performance in both sows and gilts.Poor conception rates, a fall-off in farrowing rate, returns to service, ‘silent heats’, a reduction in litter numbers and birthweights.VariedO