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| Cardoso,Martha Oliveira; Ribeiro,Aldemir Reginato; Santos,Luciana Ruschel dos; Pilotto,Fernando; Moraes,Hamilton L.S. de; Salle,Carlos Tadeu Pippi; Rocha,Silvio Luís da Silveira; Nascimento,Vladimir Pinheiro do. |
| Eighty Salmonella Enteritidis strains isolated from broiler carcasses between May 1995 and April 1996 in the State of Rio Grande do Sul, Brazil, were tested for antibiotic susceptibility using the disk diffusion method. Resistance to colistin, novobiocin, erythromycin and tetracycline was observed in 100% of the isolates. The strains showed intermediate resistance at different levels to kanamycin (1.25%), enrofloxacin (3.75%), neomycin (3.75%), fosfomycin (20%), sulphonamides (86.25%) and nitrofurantoin (90%). Resistance to ciprofloxacin, norfloxacin, gentamicin, polymyxin B, sulphametrim and sulphazotrim was not found. Since resistance to antibiotics especially those introduced in the last decades, was detected, it is recommended that their use must be... |
| Tipo: Info:eu-repo/semantics/other |
Palavras-chave: Antibiotic resistance; Broiler carcasses; Salmonella Enteritidis. |
| Ano: 2006 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822006000300030 |
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| Freitas,Manuela Figueiroa Lyra de; Luz,Isabelle da Silva; Pinheiro Júnior,José Wilton; Duarte,Dalila Angélica Moliterno; Vasconcelos,Ana Mercia Mendes; Ribeiro,Aldemir Reginato; Mota,Rinaldo Aparecido; Balbino,Tereza Cristina Leal; Stamford,Tânia Lúcia Montenegro. |
| Objetivou-se com este trabalho isolar quantificar e investigar em amostras de Staphylococcus spp. isoladas de queijos de coalho, a presença dos genes toxigênicos sea-see, seg-sej, tst, eta e etb através da Reação em Cadeia da Polimerase (PCR). Foram verificadas contagens de Staphylococcus coagulase positiva (SCP) variando de 10² a 10(6) UFC.g-1. Os genes toxigênicos tst, sec, sed, seg, seh, sei e sej foram identificados em 18 dos 20 isolados de Staphylococcus spp. com os seguintes percentuais 5, 11, 9, 20, 16, 25 e 14% respectivamente. A presença de elevado percentual de isolados contendo diferentes genes toxigênicos é preocupante para a saúde do consumidor pela possibilidade de produzirem toxinas responsáveis por intoxicações alimentares. A ocorrência de... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Queijo coalho; PCR; Enterotoxina. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612009000200022 |
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| Duarte,Dalila Angélica Moliterno; Ribeiro,Aldemir Reginato; Vasconcelos,Ana Mércia Mendes; Santos,Sylnei Barros; Silva,Juliana Vital Domingos; Andrade,Patrícia Lúcia Arruda de; Falcão,Lúcia Sadae Pereira da Costa de Arruda. |
| The present study was carried out to evaluate the occurrence of Salmonellae in broiler chicken carcasses and to determine the antimicrobial resistance profile of the isolated strains. Twenty-five out of the 260 broiler chicken carcasses samples (9.6%) were positive for Salmonella. S. Enteritidis was the most frequent serovar. Nineteen Salmonella isolates were tested for antimicrobial resistance, and the results indicated that 94.7% were resistant to at least one antimicrobial agent. Resistance to streptomycin (73.7%), nitrofurantoin (52.3%), tetracycline (31.6%), and nalidixic acid (21%) were the prevalent amongst Salmonella strains tested. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Salmonella; Broiler chicken carcasses; Antimicrobial resistance; Salmonella. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822009000300020 |
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