“…Performance-enhancing antimicrobials had been used in animal production for decades in order to control microbial agents that are harmful to the digestive process, and thus allow better use of nutrients from the diet ( Jordao-Filho et al, 2017 ), besides being responsible for providing great benefits to broiler production, expressed mainly as in higher growth rate and feed efficiency, decreased mortality rates and increased productivity ( Lorençon et al, 2007 ; Broom, 2017 ). Although there are so many positive responses regarding the use of antimicrobials, many questions have been raised due to the possibility of the development of multiresistant microorganisms and the demand for residue-free products by the consumer market ( Silva et al, 2003 ; Ramos et al, 2011 ).…”