Performance and mineral metabolism of broiler replacing commercial diet by rice polish and supplementation of citric acid

During an experimental period of 28 days citric acid (CA) was tested as a growth promoter instead of antibiotics with replacement of commercial diet by rice polish (RP). (Cobb 500) distributed into eight dietary groups (3 r (commercial diet), 2=Commercial diet+0.5% 6=10.0% RP+0.5% CA, 7=15.0% insoluble ash (1.0% Celite) as marker. mineral content and density of tibia were determined. 1733, 1642, 1694, 1618, 1656, 1613 and 1631 2359, 2419, 2432, 2433, 2524, 2494, 2519 and 2424 among the groups were 1.48, 1.44, 1.54, 1.49, 1.62, 1.55, 1.62 and 1.54, where groups comparison to non-CA group non-CA groups but replacement of 5.0% commercial diet (with or without CA) caused higher retention level. Higher dressing percentage observed in CA group ( CA groups (63.8, 63.9 for groups 1, 3). increased in CA groups (P>0.05). would be possible maintaining growth performance of broiler showed more advantages by increasing mineral density of bone.