RESUMEN
1. The aim of this study was to compare the resistance pattern of thermophilic Campylobacter spp. isolated from conventional production (n = 34) and backyard poultry flocks (n = 36) from Rio de Janeiro State, Brazil. The disc diffusion method and statistical tests were used for investigation and analysis of the resistance pattern of Campylobacter spp. isolated from different rearing systems.2. Antimicrobial resistance percentages to amoxycillin with clavulanic acid (AMC), ampicillin (AMP), ceftiofur (CTF), ciprofloxacin (CIP), enrofloxacin (ENO), erythromycin (ERI), gentamicin (GEN) and tetracycline (TET) were 32.4%, 44.1%, 67.6%, 97.1%, 82.4%, 26.5%, 5.9% and 38.2% in conventional production flocks respectively, while the backyard flock's resistance levels were 0.0%, 13.9%, 69.4%, 100.0%, 91.7%, 5.6%, 0.0% and 16.7%, respectively.3. Campylobacter spp. from conventional poultry production was more resistant to AMC, AMO, ERI and TET (P > 0.05) when compared to strains from backyard poultry. A higher frequency of resistance to fluoroquinolones (FLQ), CIP and ENO, was observed in strains from both systems, demonstrating the spread of resistant strains among poultry production environments.
Asunto(s)
Infecciones por Campylobacter , Campylobacter coli , Campylobacter jejuni , Campylobacter , Animales , Antibacterianos/farmacología , Brasil , Infecciones por Campylobacter/tratamiento farmacológico , Infecciones por Campylobacter/epidemiología , Infecciones por Campylobacter/veterinaria , Pollos , Farmacorresistencia Bacteriana , Pruebas de Sensibilidad Microbiana/veterinaria , Aves de CorralRESUMEN
The efficacy of ear canal flushing and ear canal and mouth swabbing methods for the isolation of mycoplasmas was investigated in 39 goats. Of the 19 goats positive for Mycoplasma spp., 14 (73.7%) were positive with the ear canal flushing method, 4 (21.0%) were positive with both ear canal flushing and mouth swabbing methods, and 1 (5.3%) was positive by the mouth swabbing method. Mycoplasma arginini, M. mycoides subsp. mycoides, and M. mycoides subsp. capri were identified by direct immunofluorescence and growth inhibition tests. Previous reports on the isolation of M. arginini from the ear canal of goats were not found in the literature.
Asunto(s)
Conducto Auditivo Externo/microbiología , Cabras/microbiología , Mycoplasma/aislamiento & purificación , Manejo de Especímenes/veterinaria , Animales , Ácaros , Boca/microbiología , Manejo de Especímenes/instrumentación , Manejo de Especímenes/métodosRESUMEN
In Brazil, mycoplasmas were isolated from the sinuses of Japanese quails (Coturnix coturnix japonica) from two commercial flocks affected with sinusitis. The major respiratory signs and gross lesions are described. Based on serological and biochemical results, the mycoplasmas isolated were identified as Mycoplasma gallisepticum. One of the isolates was pathogenic for chickens.
