Two hundred and sixteen, commercial, straight run day-old Vencobb broiler chicks were randomly grouped into six treatments with three replicates of twelve chicks each. Six experimental rations were prepared as per BIS Standards by including 0 per cent (T1), 1 per cent (T2), 2 per cent (T3), 3 per cent (T4), 4 per cent (T5) and 5 per cent (T6) crude rice bran oil on isocaloric and isonitrogenous basis. The results revealed that there was no significant difference in body weight gain feed consumption, feed conversion ratio between treatment groups from first week to end of the experiment period. Livability was 100 per cent in all the treatment groups except in T6 wherein mortality of one bird was observed during seventh week of age. Inclusion of crude rice bran oil in broiler diet had no significant difference on return over feed cost between treatment groups at seven weeks of age. But, at seventh week of age T4 had numerically higher return over feed cost when compared to other treatment groups. Hence, crude rice bran oil can be included beneficially up to 3 per cent in the broiler diet to reduce the cost of production.
Crude rice bran oil, return over feed cost, broilers
