To determine the productive effect of acids over the broiler chicken, four treatments were formed, of 48 chickens each, together with a control. The chicken in the treatments received antibiotic - furazolidone (200 mg/100 kg) and acidifiers used as acidifier 1- mixture of formic acid and lactic acid, acidifier 2- butyric acid acidifier and acidifier 3 - prepared in laboratory by mixing copper sulphate, lactic acid, water in the ratio 1:2:3 respectively in the feed at the rate of 50 mg/100 kg for starter fallowed by 50mg/kg in the finisher. The use of this acidifying at the broiler chicken had profitable results, least total and E.coli count was obtained in the antibiotic supplemented group as compared to the control and acidifier group but no significant difference was present between acidified and the antibiotic group. No Salmonella growth was obtained in any sample. Acidifiers are as good as antibiotic in controlling the population of pathogenic bacteria.