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Published online by Cambridge University Press: 23 November 2017
In the productive chain of broiler chicken the sanitary problems are minimized with the use of alimentary additives. The official Brazilian Health Department has established criteria for the use of antibiotic in broilers chicken diet and the use of probiotics, prebiotics and simbiotics has increased (Miltenburg, 2000). This paper was developed to evaluate the effect of different growth-promoters in diet for broilers chickens from 1 to 21 days age on weight gain, feed intake and feed conversion and to study the economic viability of addition of those promoters.