This study aims to detect Staphylococcus aureus (S. aureus) resistance in the veterinary hospital environment. S. aureus are one of the components of the microbiota, and they may be present in patients in a veterinary hospital environment. Methicillin resistance is determined by a chromosomal gene (mecA), which codes for modifications in the beta-lactam antibiotic receptor, where the penicillin-binding protein will have a low affinity for the antibiotic. Samples were collected through swabs of materials and equipment at the hospital. S. aureus was identified in 7.6% (21/276) of the samples collected, and of the 21 strains isolated, 4 (19.0%) carried the mecA gene. MRSA are all strains of S. aureus that express the mecA gene. Four strains harbor the mecA gene; however, only two expressed the phenotypic resistance to cefoxitin and were characterized as MRSA. An isolate (strain 18) present on a patient care table was identified as methicillin-resistant S. aureus with intermediate sensitivity to vancomycin (VISA). Our observations suggest the need for containment measures (good antisepsis practices) to avoid the possible transmission of resistant bacterial agents for the veterinary hospital environment.
Escherichia coli (E. coli) comes in second place among microorganisms involved in outbreaks of foodborne diseases in Brazil and is among the 4 most prominent worldwide. Due to its importance, the purpose of this work is to verify microbiological quality by the presence of E. coli in bovine carcasses. A total of 365 E. coli were isolated by swabs of 154 carcasses of cattle, slaughtered in the municipality of Mineiros – GO, Brazil. The frequency of E. coli in the samples collected was 81% (125/154). Of these E. coli, 16 had the gene eae, and none presented the genes stx1 or stx2, so were therefore classified as EPEC. Thus, the frequency of EPEC in the carcasses was 9.7% (15/154). The strains were classified as part of the A or B1 groups. As for antimicrobial resistance, the antibiotics with the highest percentages of resistance were Cephalothin with 82% (41/50), followed by Gentamicin and Amikacin with 26% (13/50) each. None of the samples showed any production of the extended-spectrum beta-lactamase enzyme, but three EPECs were classified as multi-drug resistant. The results demonstrate the presence of multi-resistant EPEC in bovine carcasses slaughtered in Mineiros city, Brazil.
O modelo de produção mais utilizado na avicultura brasileira é o sistema de integração entre produtores e frigoríficos, o que permite a análise completa da cadeia produtiva e o estudo sistematizado da correlação entre estrutura, manejo e ambiente proporcionado às aves. Diante deste cenário, objetivou-se identificar os principais pontos vulneráveis da cadeia produtiva de frangos de corte relacionados à ambiência e ao manejo, caracterizando o nível de atendimento das normas de bem-estar animal (BEA) em estabelecimentos de criação e abate de aves, localizados no Sudoeste Goiano. Desta forma, procedeu-se à verificação de recomendações norteadas pelas diretrizes da Humane Farm Animal Care (HFAC) e da Royal Society for the Prevention of Cruelty to Animals (RSPCA) em vinte granjas e três frigoríficos distribuídos pela região amostrada. Os dados foram analisados pelo método descritivo. Como resultado, foram observadas falhas técnicas, de manejo e estruturais nas etapas pré-abate, bem como nos procedimentos industriais nos estabelecimentos avaliados, além da total ausência de enriquecimento ambiental.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.