Abstract
SUMMARY The effect of varying levels of enzymatically hydrolyzed soluble yeast glucan (YG) and yeast mannan (YM) products on broiler chickens was studied. A total of 486 day-old male Ross 308 broiler chicks were allocated to 9 dietary treatments consisting of YG and YM supplemented at 0.05, 0.10, 0.15, or 0.20 g/kg diet, respectively, and a control without yeast supplementation. Each treatment was replicated 6 times with 9 birds per replicate. The supplements did not affect body weight gain (BWG) and feed conversion ratio (FCR) in the starter phase nor feed intake at any stage. However, birds especially in the 0.20 g YM/kg diet group had improved (P
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