Effect of dietary energy levels and phase feeding by protein levels on growth performance blood profiles and carcass characteristics in growing-finishing pigs

摘要

BackgroundProviding of insufficient nutrients limits the potential growth of pig, while feeding of excessive nutrients increases the economic loss and causes environment pollution. For these reasons, phase feeding had been introduced in swine farm for improving animal production. This experiment was conducted to evaluate the effects of dietary energy levels and phase feeding by protein levels on growth performance, blood profiles and carcass characteristics in growing-finishing pigs.