RESUMEN
Salmonella spp. causes diseases in fowls, when species-specific serovars (Salmonella Pullorum and S.Gallinarum) are present in flocks, and public health problems, when non-typhoid serovars are isolated, as well as possible bacterial resistance induced by the preventive and therapeutic use of antimicrobials in animal production. This study describes the serovars and bacterial resistance of 280 Salmonella spp. strains isolated from turkey and broiler carcasses in Southern Brazil between 2004 and 2006. Salmonella Enteritidis was the most prevalent serovar (55.7%), followed by Heidelberg (5.0%), Agona (4.3%), Bredeney (3.9%), Hadar (3.2%), and Typhimurium (2.9%). Tennessee and S. Enterica subspecies enterica(O: 4.5) were isolated only in turkeys, and Hadar (18.6%) was the most prevalent serovar in this species. Antimicrobial susceptibility tests were performed in 178 isolates (43 from turkeys and 135 from broilers). All isolates were sensitive to amoxicillin + clavulanic acid, polymyxin B, ciprofloxacin, and norfloxacin, and were resistant to bacitracin and penicillin. Broiler carcass isolates showed resistance to nalidixic acid (48.9%), nitrofurantoin (34.3%), neomycin (9.6%), tetracycline (5.2%), and kanamycin (8.9%); and turkey carcass isolates were resistant to nalidixic acid (62.8%), tetracycline (34.9%), and neomycin (30.2%), with a significant difference in turkeys when compared to broiler carcass isolates. These results indicate the need for judicious use of antimicrobials in livestock production, given that the serovars identified are potential causes of food poisoning.
Asunto(s)
Antibacterianos/farmacología , Salmonella/efectos de los fármacos , Animales , Brasil , Pollos , ADN Bacteriano/análisis , Pruebas de Sensibilidad Microbiana , Enfermedades de las Aves de Corral/microbiología , Salmonella/clasificación , Salmonella/aislamiento & purificación , Salmonelosis Animal/microbiología , PavosRESUMEN
Salmonella é um dos patógenos mais comumente relacionados com enfermidades transmitidas por alimentos em humanos, freqüentemente associada com o consumo de aves e seus derivados. Da mesma forma, a sua resistência a diversos tipos de antimicrobianos vem tornando-se um problema importante para a saúde pública. O objetivo deste estudo foi o de avaliar a contaminação de carcaças e vísceras de frangos resfriadas comercializadas em supermercados de Aracaju, SE, por Salmonella e verificar a sensibilidade deste patógeno a diferentes antimicrobianos. A presença de Salmonella Muenchen foi verificada em uma das amostras, tendo uma alta sensibilidade aos antimicrobianos testados.