A study was carried out on layers (n=216) to evaluate the utilization of palm kernel meal (PKM)in diets at 0, 3.5, 7.5, 11.25 and15.0 % to replace de-oiled rice bran (DORB) by 0, 25, 50, 75 and 100%, either alone or in combination with enzymes in nine dietary treatments for 10 laying periods of 28 days each in cages. The performance of layers in terms of hen-day egg production and feed efficiencywere influenced significantly (P<0.01) whereas feed intake, body weights and mortality were not affected by the inclusion of PKM in thediets upto 15% with or without enzymes supplementation. Furthermore, the egg weight, shell thickness, albumen index, yolk index, Haughunit, total serum protein, serum alkaline phosphatase and antibody titres for Newcastle disease were not affected. The income over feed costper dozen eggs was higher in layers fed ration containing PKM at 7.5% along with enzymes than all other treatments. Based on the overallperformance of layers, the PKM can be used at 11.25% and 15% without and with enzymes respectively by replacing de-oiled rice bran inlayer diets. layers
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