Abstract
This study was planned to investigate the effect of different combinations of sunflower meal and cotton seed meal in isonitrogenous and isocaloric rations on the performance of broiler chicks. Five experimental rations designated as A, B, C, D and E having sunflower meal and cotton seed meal (0, 3, 6, 9 and 12% sunflower meal with corresponding levels of 12, 9, 6, 3 and 0 % of the cotton seed meal) were fed to 250 broiler chicks, randomly distributed into 5 main groups, A, B, C, D and E, where each main group was further divided into 5 sub groups contained 10 birds each. The birds were reared for a pre-experimental period of 6 days on commercial ration followed by 33 days of experimental period. Average weight gain, feed consumption, feed efficiency, dressing percentage, cost of feed per unit weight gain and mortality were used as criteria of response. The mean body weight gain per chick was 1441, 1464, 1533 and 1484 g. The body weight gain in group C was significantly higher (P
