The objective ofthis study was to determine the best level of oil licuri concentrate on dairycows. The best level was determined through an analysis of the milk's chemicalcomposition and fatty acid profile. Sixteen lactating cows from the Holstein× Zebu cross breed kept on Tanzania grass pastures were divided into four4 × 4 Latin squares, which were formed by four experimental periods of21 days. The 21-day experimental periods were divided into 17 days for adaptationand four days for collection. Cows received three kg of concentrate per day,at the time of milking. Treatments consisted of four types of feed containingthe following levels: 0, 1.5, 3.0, and 4.5% inclusion of dry matter (DM) licurioil concentrate. The licuri oil levels changed the fatty acids' profile witha linear increase in the short-chain fatty acid and medium and linearly reducedthe concentration of LCFA. The highest level of licuri oil was 4.5% of DM concentrate,which changed the composition of milk through an increase in the percentageof fat and total solids. This result is of prominent notice to the dairy industry.
