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Individual and combined effects of feed artificially contaminated with with fumonisin B1 and T-2 toxin in weaned rabbits

于World Mycotoxin Journal
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D. Hafner Faculty of Agricultural and Environmental Sciences, Kaposvár University, Guba S. 40., Kaposvár 7400, Hungary.

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A. Szabó Institute of Diagnostic Imaging and Radiation Oncology, Kaposvár University, Guba S. 40., Kaposvár 7400, Hungary.

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L. D’Costa MTA-KE Mycotoxins in the Food Chain Research Group, Faculty of Agricultural and Environmental Sciences, Kaposvár University, Guba S. 40., Kaposvár 7400, Hungary.

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J. Szabó-Fodor MTA-KE Mycotoxins in the Food Chain Research Group, Faculty of Agricultural and Environmental Sciences, Kaposvár University, Guba S. 40., Kaposvár 7400, Hungary.

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G. Tornyos Faculty of Agricultural and Environmental Sciences, Kaposvár University, Guba S. 40., Kaposvár 7400, Hungary.

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Zs. Blochné Bodnár Faculty of Agricultural and Environmental Sciences, Kaposvár University, Guba S. 40., Kaposvár 7400, Hungary.

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K. Ölbeiné Horvatovich Faculty of Agricultural and Environmental Sciences, Kaposvár University, Guba S. 40., Kaposvár 7400, Hungary.

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E. Baloghné Zándoki MTA-KE Mycotoxins in the Food Chain Research Group, Faculty of Agricultural and Environmental Sciences, Kaposvár University, Guba S. 40., Kaposvár 7400, Hungary.

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B. Bóta MTA-KE Mycotoxins in the Food Chain Research Group, Faculty of Agricultural and Environmental Sciences, Kaposvár University, Guba S. 40., Kaposvár 7400, Hungary.

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M. Kovács Faculty of Agricultural and Environmental Sciences, Kaposvár University, Guba S. 40., Kaposvár 7400, Hungary.
MTA-KE Mycotoxins in the Food Chain Research Group, Faculty of Agricultural and Environmental Sciences, Kaposvár University, Guba S. 40., Kaposvár 7400, Hungary.

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Co-contamination of feed and feed raw materials with two or more mycotoxins is frequently reported, however, only a few studies have investigated the combined effects of low doses of multiple mycotoxins. In the present study the individual and combined effects of 10 mg/kg fumonisin B1 and 2 mg/kg T-2 toxin (n=12/group) were investigated in weaned rabbits. Mycotoxin contaminated feed was produced by adding fungal cultures ofFusarium verticillioides andFusarium sporotrichioides, and fed to 40 days old rabbits during 28 days. Feed intake and body weight were measured weekly, serum biochemistry and antioxidant parameters on day 0, 14 and 28, while histopathological examination and comet assay were performed at the end of the experiment. T-2 exposure both alone and in combination resulted in 15-18% less final body weight compared to the control and FB1 treatment. There was a significant increase in the concentration of plasma total protein, albumin, fructosamine and creatinine in the group treated with FB1 compared to the control. The liver and the kidney of most animals treated with T-2 toxin, FB1 and their combination showed pathological changes, occurring more frequent in animals exposed to both toxins. T-2 resulted in depletion of lymphocytes in the spleen. FB1 and T-2 exerted synergistic effect on the antioxidant/oxidative parameters after 2 weeks of exposure, manifesting in less glutathione and glutathione peroxidase, while more malondialdehyde was produced. Both toxins caused DNA damage in the lymphocytes, which was more pronounced in the group fed T-2 toxin and T-2 combined with FB1, without additive or synergistic effects.

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