“…FQs have broad spectrum activity against Gram-positive and Gram-negative bacteria, and they are used in veterinary medicine for respiratory, urinary, gastrointestinal, and skin infections treat-ment (Barreto, Ribeiro, Hoff, & Costa, 2017;Chaowana & Bunkoed, 2019;. The presence of these antibiotics in meat is a health risk for humans because they can produce allergic reactions, carcinogenesis and pathogen resistance (Barreto et al, 2017;Bozkurt, Erdogan, Antep, Tuzmen, & Merdivan, 2016;. Therefore, the EU has set MRLs for some FQs in animal tissues, for example, flumequine (0.2 mg kg -1 ), marbofloxacion (0.15 mg kg -1 ), difloxacin (0.4 mg kg -1 ), ciprofloxacin (0.1 mg kg -1 ), and sarafloxacin (0.01 mg kg -1 ; Chaowana & Bunkoed, 2019; X.…”