THE EFFECTS OF DIFFERENT PROTEIN AND ENERGY LEVELS ON BROILERS PERFORMANCE UNDER HOT CLIMATIC CONDITIONS

Sami Ahmed Mohammad ARABI
Head Department of Animal Production, Faculty of Environmental Science and Natural Resources,
University of Al- Fashir
P O Box 125,AlFashir Sudan
Mobile: +249-912554816
Corresponding author:samiarabi@ymail.com

ABSTRACT
The present experiment was designed to evaluate the effect of different protein and energy levels on broilers performance under hot climatic conditions. A total of three hundred Ross-308 chicks were selected on basis of uniform starting live bodyweight (45g/chick) proximately. Chicks were randomly divided into three treatments with five groups of 20 chicks per pen. Diets were formulated based on white sorghum, groundnut meal and sesame meal bone meal to meet the nutrient requirements of broiler diet. Test diets were fed in mash form, three forms of diets were used 19.7% (NRC 1999 Kuku Animals Centre) recommended with 3200 Kcal / kg as reference, 21% and 23%CP supplied with 3100, 3000,Kcal/kg a proximately of ME respectively. Performance, body weight, feed intake, feed conversion, mortality and economical profile were determined. The results with level of high protein improved, body weight, weight gain, and feed conversion significantly (P<0.05) with the being high in the treatment groups for body weight gain (1668.5±31), mean value of hot carcass weights (1681.3±108.2) and cold carcass weights (1662.5±197.8). Feed intake scores significantly (P<0.05) improved when raised protein levels; Profitability ratios of test groups were high, with recording the value (56.87%) with being high in treatment groups and the lower was (41.74). The results of the present work indicate that a protein level of 23% and energy level of 3000 kcal/kg diet may be recommended for broiler chicks raised in hot climate, protein level of 20% and energy level of 3200 kcal/kg diet may be recommended for finishing broiler chickens.
Key Words: Hot Climatic, body gain, Carcass weights, Profitability ratio