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April 21, 2015


Research—Does “Fresh” Shrimp from Biofloc and Traditional Farms
Carry Dangerous Micro-organisms?


From Abstract: In this study, the presence of coagulase-positive Staphylococcus, Salmonella, Vibrio and total and thermo-tolerant coliforms were found in biofloc tanks and conventional shrimp farming systems; however, none of the harvested shrimp tested positive for Salmonella or coagulase-positive Staphylococcus, a requirement for fresh shrimp sales in Brazil.  While no standards are defined for Vibrio or coliforms, very low concentrations of them were found.  While some variation in bacterial contamination was observed over the rearing process, the end product from both systems was fit for human consumption.  The results of the study indicate that, while the water is not renewed in the biofloc system, the development of undesirable micro-organisms can be controlled, with no adverse effects for the end product.


Source: Aquaculture Research.  Microbiological Quality of Litopenaeus Vannamei Culture Using Conventional and Biofloc Systems.  Camila Brito (email, Laboratório de Tecnologia em Aquicultura (LTA), Universidade Federal Rural de Pernambuco, Rua Dom Manuel de Medeiros s/n, Dois Irmãos, Recife 52171-900, PE, Brazil), Bruna do Valle, Juliana Interaminense, Silvio Peixoto, José Vitor Lima-Filho and Roberta Soares (email  Early Online View Before Publication.  April 15, 2015.

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