Long-term exposure of Pacu (Piaractus mesopotamicus) fish to dietary aflatoxin B1: residues in tissues and performance
| Autor: | Ricardo Luiz Moro de Sousa, L. C. S. Carrion, Carolina M. Bedoya-Serna, George Shigueki Yasui, Silvia Helena Seraphin de Godoy, Juliana Cristina Baldin, Andrezza Maria Fernandes, George E. Rottinghaus, César Gonçalves de Lima, Euder Cesar Michelin |
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| Rok vydání: | 2021 |
| Předmět: |
0106 biological sciences
Aflatoxin biology business.industry 010604 marine biology & hydrobiology Public Health Environmental and Occupational Health 04 agricultural and veterinary sciences Toxicology biology.organism_classification 01 natural sciences Pacu Piaractus mesopotamicus chemistry.chemical_compound chemistry Aquaculture 040102 fisheries 0401 agriculture forestry and fisheries Fish Food science Mycotoxin business Food Science |
| Zdroj: | World Mycotoxin Journal. 14:411-419 |
| ISSN: | 1875-0796 1875-0710 |
| DOI: | 10.3920/wmj2020.2659 |
| Popis: | The objective of this work was to evaluate the aflatoxins residues on tissues of Pacu (Piaractus mesopotamicus) fish chronically exposed to dietary aflatoxins, also evaluating the effects on fish performance. Aflatoxins were incorporated into the extruded fish feed and the concentrations were confirmed by high performance liquid chromatography (HPLC). The experimental design comprised the following treatments: Control – feed without toxin; Treatment A: feed + 10 μg aflatoxin B1 (AFB1)/kg; Treatment B: feed + 20 μg AFB1/kg and Treatment C: feed + 50 μg AFB1/kg. Pacu juvenile were allocated in tanks with density of one fish per litter. The experiment lasted 180 days with monthly sampling, and approximately ten fish per treatment were used to compose a sample. Biometric surveys were performed every 30 days, including standard weight and length. Aflatoxins were detected and quantified in fish muscle and liver by HPLC, using immunoafinity columns. Results showed AFB1 deposition in the liver throughout the experiment in all treatments, but only treatment C differed significantly (P1 residues at low levels in liver and only a slight amount in fish muscle, it should be noted that accumulation is possible in the Pacu species. The diets contaminated with AFB1 negatively interfered in weight and length of fish when compared to control. Therefore, it can be concluded that long-term exposure of Pacu to dietary AFB1 can cause losses to producers. |
| Databáze: | OpenAIRE |
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