Feeding rice distiller's dried grains with solubles (rDDGS) and rice gluten meal (RGM) in broiler chickens: Carcass quality traits

Abstract

A biological experiment was conducted to evaluate the effect of feeding rice based distillers dried grains with solubles (rDDGS) and rice gluten meal (RGM) combination as soybean replacement along with exogenous enzyme supplementation on carcass traits of broiler chicken at 42 days of age. The experimental diets used were T1 (without rDDGS/RGM/enzyme), T2 (without rDDGS/RGM, with multienzymes), T3 (12.5% rDDGS, 15% RGM, no enzyme), T4 (12.5% rDDGS, 15% RGM, with protease enzyme), T5 (10% rDDGS, 12.5% RGM, no enzyme), and T6 (10% rDDGS, 12.5% RGM, with protease enzyme). The feeding of rDDGS & RGM combination with protease and multienzymes revealed no significant (P>0.05) difference on the carcass traits, organ weight and cut up parts except feather loss, abdomen fat (%), S.I weight, S.I. length and S. I. density (per kg live wt.). The feather loss was higher and S.I weight & density were significantly (P<0.05) lower in dietary combination of 12.5% rDDGS & 15% RGM followed by 10% rDDGS and 12.5% RGM combination compared to control diet. The dietary combination of 12.5% rDDGS and 15% RGM decreased the abdominal fat compared to control and other rDDGS & RGM combination. The study concludes that the feeding of rDDGS and RGM in combination levels of 12.5% and 15%, respectively with or without enzyme supplementation do not have any adverse effects on the carcass traits, but adversely affecting abdomen fat, feather percentage, S.I weight, length & density of broiler chicken at 42 days.