SUMMARY
Abstract The objective of this study was to determine the influence of probiotics and vinegar on fatty acid profile in broiler chickens. Four hundred chicks (Cobb 500) were randomly distributed to 4 dietary treatments. The basic diet was used as a control treatment (Tr1). Chicks in treatment 2 were fed a basic diet with the addition of probiotics and vinegar mixed in drinking water (Tr2). Treatment 3 (Tr3) chicks were fed a basic diet with probiotics addition. Treatment 4 (Tr4) chicks were fed a basic diet and vinegar mixed in drinking water. Probiotics (B. subtilis) was used in dosage 500 g per t of feed. Vinegar with 5% malic acid was added 10 ml per l to drinking water. No significant different of saturated, unsaturated and polyunsaturated fatty acids between the treatments was observed.