Research Article
Microbiological Evaluation of Water and Fillets in the Production Chain of Nile Tilapia (Oreochromis niloticus)
Author(s): Gabriel Marcos Domingues de Souza, Lucienne Garcia Pretto- Giordano, Gislayne Trindade Vilas- Bôas, Túlio Oliveira de Carvalho, Ângela Teresa Silva- Souza, Mauro Caetano Filho, Ronaldos Tamanini and Laurival Antônio Vilas- BoasGabriel Marcos Domingues de Souza, Lucienne Garcia Pretto- Giordano, Gislayne Trindade Vilas- Bôas, Túlio Oliveira de Carvalho, Ângela Teresa Silva- Souza, Mauro Caetano Filho, Ronaldos Tamanini and Laurival Antônio Vilas- Boas
This study evaluated the quantity of total aerobic bacteria, total coliform and Escherichia coli in samples of the Nile tilapia fillet (Oreochromis niloticus) and in water samples at different stages of a tilapia production chain in Brazil. Furthermore, the effect of temperature on the number of such bacterial groups in the fillet and water samples, and the impact of the type of tank, net cages or ponds, during the fattening stage of tilapia on bacterial quantification was ascertained. A generalized linear model with negative binomial distribution was used, aiming to assess the influence of predictor variables like climate season and type of tank, with interaction term, on bacterial counts. Analysis of the results showed that, for water samples, the highest scores of all bacterial groups evaluated were obtained at debugging stage. Additionally, the increase in temperature positively i.. View More»
DOI:
10.4172/2155-9546.1000344