Poultry By-Product Meal as a Potential Protein Source in Broiler Diets with Exogenous Protease Supplementation

The objective of this study was to investigate the effect exogenous protease supplementation in diets formulated with poultry by-product meal on growth performance, small intestine magnitudes, and meat physiochemical characters broiler chickens from 21 35 days post-hatch. A total 120, one-day-old "Arbor Acres Plus" (male: female - 50:50) were allocated one two dietary treatments give six replicates ten birds per cage. Two included a control diet (CON) supplemented (CON+Pro). At day 35, body weight feed intakes measured calculate conversion ratio for entire experiment period. each pen euthanized measure relative lengths weights three sections samples collected characteristic analyses at Exogenous did not influence (P>0.05) performance but showed tendency improve FCR (P=0.082). Protease reduce proximal length (P=0.091). Broilers offered influenced minced color where resulted lower CIE b* (P<0.001) colorimetric value yellowness significant trend (P=0.059) reducing redness a*. In conclusion, addition affect parameters (except b*) chickens.