Effect of energy-protein ratio in diets on Balinese duck(Anas sp)performance and feed digestibility

Abstract

The present study was conducted to determine the effects of energy-protein ratio in diets on Balinese duck performance and feed digestibility. A total of 120, 1-d-old healthy male Bali duck (Anas sp) were randomly divided into four treatment groups: i) The ration contains metabolic energy (ME) 3150 kcal/kg with 22% crude protein as a control (A); the ration contains 3000 kcal/kg of metabolic energy with 20% protein (B); ration contains 2850 kcal/kg of metabolic energy with 18% (C) protein; and ration contains 2700 kcal/kg of metabolic energy with protein 16%(D), respectively.There were six replications per treatment, resulting in 24 pens, which contained 5 birds each. The results showed that there was no significant difference (P>0.05) in feed intake, dry matter digestibility and protein digestibility between all treatments. Final body weight and live weight gains, the highest (P