Effect of Dietary Inclusion of Rice Distiller Dried Grain with Solubles on Carcass Characteristic, Fatty acid and Meat Composition in Broiler Chicken

Abstract

Background: The increasing demand for soybean meal has caused in a steep increase in its price. An alternative to replace soybean meal is still going on to improve net returns. Hence, incorporating the rice distiller dried grain with solubles (rDDGS) into poultry diets could replace the traditional protein-feed components like soybean meal. Methods: 400 Vencobb-400 broiler day old chicks were allocated into five experimental groups (T1, T2, T3, T4 and T5), each group containing eight replicates. The experimental groups were provided corn-soya based rations with inclusion of various levels of rDDGS (0, 2.5, 5, 7.5 and 10%) as a partial substitute for soybean meal throughout 42 days period. Birds were sacrificed at day 42 and breast part was evaluated for proximate principles, fatty acid analysis, meat quality such as organoleptic assessment, pH, drip loss, water holding capacity (WHC), cooking loss and thiobarbituric acid reactive substance (TBARS). Result: Except for back yield, non-significant changes (p greater than 0.05) were found in carcass parameters. In evaluating meat composition, organoleptic and physiochemical properties, no significant effects were observed due to the inclusion of rDDGS. However, docosadienoic acid (C22:2), eicosa-penta-enoeic (C22:5) and docosa-hexa-enoic acid (C22:6) concentration of breast muscles was improved (P less than 0.05) due to the inclusion of rDDGS.