Mycobiota and mycotoxins present in finished fish feeds from farms in the Rio de Janeiro State, Brazil
- Barbosa, Tatiana S.
- Pereyra, Carina Maricel
- Soleiro, Carla A.
- Dias, Erica O.
- Oliveira, Aguida A.
- Keller, Kelly M.
- Silva, Pedro P. O.
- Cavaglieri, Lilia Reneé
- Rosa, Carlos Alberto da Rocha
DOIAbstract
The aim of the present study was to determine species of the fungal genera Aspergillus, Fusarium, and Penicillium and fumonisin B1 (FB1), aflatoxin B1 (AFB1), and ochratoxin A (OTA) contamination from feed intended for fish farms. A total of 60 samples were sampled from tilapia farms in the Rio de Janeiro State, Brazil. The quantitative enumeration of fungi as colony-forming units per gram of feed (CFU/g) was performed using the surface spread method in different culture media. The results were expressed as fungal isolation frequency and relative density. Fungal total counts ranged from <1 × 102 to 4.7 × 104 CFU/g. Fusarium counts were not observed. Among toxigenic genera, Aspergillus (68%) was the most prevalent, followed by Penicillium sp...
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