¹Department of Animal Nutrition and Nutritional Disease, Faculty of Veterinary Medicine, Ankara University, TR-06110 Diskapi, Ankara - TURKEY
²Department of Animal Nutrition and Nutritional Disease, Faculty of Veterinary Medicine, Selcuk University, TR-42003 Selcuklu, Konya - TURKEY
³Department of Animal Nutrition and Nutritional Disease, Faculty of Veterinary Medicine, Adnan Menderes University, TR-09016 Isikli, Aydin - TURKEY DOI : 10.9775/kvfd.2012.8369 The aim of the current study was to evaluate the effects of graded levels of crude glycerine addition to diets on growth and economic performance, carcass yield, organ weights and moisture levels of meat in broiler chickens. For this purpose, a total of 270 one day old male chicks (Ross 308) were randomly divided into 3 equal groups which fed with isocaloric and isonitrogenous diets with graded levels (0%, 5% and 10%, respectively) of crude glycerine. Each of experiment group was constituted by 5 subgroups with 18 birds each. The birds had ad libitum access to feed and water until termination of the experiment at d 42. Results indicated that 5% dietary crude glycerine addition improved body weight, body weight gain and feed conversion ratio compare with birds fed with basal diet at d 42 (P<0.01). Similarly, dietary 10% crude glycerine supplementation also increased growth performance and improved FCR in broiler chickens at 28th and 42nd days of experiment (P<0.05 and P<0.001, respectively). Moreover, birds fed with 5% dietary crude glycerine had showed over 20% higher relative economic efficiency compare than birds fed basal diet. As a conclusion, dietary crude glycerine addition improved growth and economic performance and Feed Conversion Ratio of broilers in both supplementation levels. Keywords : Broiler, Carcass, Economic efficiency, Glycerine, Growth performance