The impact of incubation temperatures on broiler performance

摘要

To meet consumer demands over the last eight years, poultry is now raised using fewer antibiotics. This shift has led to an increase or variability in seven^ day mortality levels in both parent stock and broiler levels.This increase in mortality shows typical bacterial infection patterns (see Fig. 1).These infections are not what is associated at the hatchery with yolk sac infection/omphalitis or visually poorer quality chicks. In fact, chicks appear healthy and active, with a hidden danger underneath, not outwardly visible.