Nutrient density and the collaborative impact of exogenous enzyme blend on the performance of broiler chicken

This study evaluates the collaborative effect of exogenous enzyme blend and dietary nutrient density on the performance of broiler chicken. A total of 600 Ross 308 broiler chickens with same average initial body weight were randomly assigned to 5 treatments. Each treatment contained 8 replicates, and 15 birds per replicate. The diets included a control (CON) starter/finisher (S/F) diet with metabolizable energy (ME) 3,100/3,200 in Kcal/kg and crude protein (CP) content 22.0.0/20.00 in % as (S/F 3,100/3,200 Kcal/kg + CP, 22.00/20.00 %). S/F with ME 3,060/3,150 Kcal/kg + CP 21.50/19.50 % with and without the exogenous enzyme blend as (S/F 3,060/3,150 Kcal/kg + 21.50/19.50 % with, and without the exogenous enzyme blend), and lastly, S/F with ME 3,010/3,100 Kcal/kg + CP 21.50/19.50 % with, and without the exogenous enzyme blend as (S/F 3,010/3,100 Kcal/kg + 21.50/19.50 % with, and without the exogenous enzyme blend). The impact of the treatments was tested on growth performance, nutrient digestibility, blood metabolites, intestinal microflora, and morphology of broiler chicken. The inclusion of exogenous enzyme blend in the nutrient-deficient diet S/F 3,060/3,150 + 21.50/19.50 increased (p