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160 unsexed Nera day old chicks were weighed and randomly divided into 8 experimental groups such that there were 2 replicates of 10 birds each per diet. Eight diets were formulated for the starter and finisher phases. The first four diets had groundnut cake as the protein source and were gradually replaced by sunflower meal (SFM) at the level of 0%, 25%, 50% and 75%. Diets 5-8 contained soyabean meal replaced progressively by SFM at 0%, 25%, 50% and 75%. The feed and water were given ad libitum and the experiment lasted eight weeks. Feed intake increased significantly (P