Qualitative and Quantitative Determination and Resistance Patterns of Salmonella from Poultry Carcasses

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Data

2016-06-01

Autores

Yamatogi, R. S. [UNESP]
Oliveira, H. C. [UNESP]
Possebon, F. S. [UNESP]
Pantoja, J. C. F. [UNESP]
Joaquim, J. G. F.
Pinto, J. P. A. N. [UNESP]
Araujo, J. P. [UNESP]

Título da Revista

ISSN da Revista

Título de Volume

Editor

Int Assoc Food Protection

Resumo

Poultry products are important in the transmission of zoonotic pathogens, mainly Salmonella. This genus causes millions of foodborne diseases worldwide every year. Cross-contamination by food sources in human cases of salmonellosis and the increase in resistant strains have become important issues. A qualitative and quantitative Salmonella detection method was utilized in a poultry slaughterhouse in Sao Paulo State, Brazil. We collected 33 samples from different batches of carcasses. Each sample was analyzed at three process points: postbleeding, postdefeathering, and postchilling A fourth point, retail simulation, was added to simulate retail market storage at 5 degrees C for 72 h. The qualitative methods revealed 100% (33 samples) contamination at postbleeding, 39% (13 samples) contamination at postdefeathering, 58% (19 samples) contamination at postchilling, and 30% (10 samples) contamination at the retail simulation. The quantitative results, determined by the most-probable-number (MPN) technique, ranged from <0.03 to >2,400 MPN/g. We identified 23 Salmonella serovars; the most prevalent were Mbandaka, Senftenberg, and Enteritidis. Resistance to nalidixic acid was significantly more common (P < 0.05) than resistance to other antimicrobial agents. Five multidrug-resistant strains were identified. This study contributes important epidemiological data and demonstrates the need to improve sanitary conditions in slaughterhouses.

Descrição

Palavras-chave

Antimicrobial agents, Contamination, Multidrug resistance, Most probable number, Poultry, Salmonella

Como citar

Journal Of Food Protection. Des Moines: Int Assoc Food Protection, v. 79, n. 6, p. 950-955, 2016.