Comportamiento productivo de pollos en estrés por calor alimentados con una dieta adicionada con probiótico

The objective of this study was to evaluate the performance of chickens raised under heat stress (HS) conditions and fed a diet supplemented with a probiotic. There were 270 1-day old chicks randomly assigned to one of these treatments: 1 and 2) housed under thermoneutral conditions and fed a standard diet without (TNE) or with a Lactobacillus – based probiotic (TNP); 3 and 4) housed under HS and fed a standard diet without (HSE) or with probiotic (HSP). The probiotic supplementation improved body weight, daily weight gain and feed conversion of HS chicks (P<0.05) but it had no effect in TN chicks (P>0.05).