Eggs from the control group were heavier when compared with
the heat-stressed birds. Such results are in agreement with those
reported by Vercese etal.(2012), but inconsistent with the former
results obtained by Emery etal.(1984). Heats tress has been reported to reduce feed intake, as well as digestibility of different components of the diet (Bonnet etal.,1997). Furthermore, when the ambient temperature exceeds the thermoneutral zone of a
bird, feed consumption is decreased to minimize the production of
metabolic heat(Swennenetal.,2007), which adversely affects
performance and profitability (Quinteiro-Filhoetal.,2010).