Fungal and bacterial metabolites in commercial poultry feed from Nigeria
Metabolites of toxigenic fungi and bacteria occur as natural contaminants (e.g. mycotoxins) in feedstuffs making them unsafe to animals. The multi-toxin profiles in 58 commercial poultry feed samples collected from 19 districts in 17 states of Nigeria were determined by LC/ESI–MS/MS with a single ex...
| Autores principales: | , , , , |
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| Formato: | Journal Article |
| Lenguaje: | Inglés |
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Informa UK Limited
2012
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| Acceso en línea: | https://hdl.handle.net/10568/79831 |
| _version_ | 1855521428459225088 |
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| author | Ezekiel, C.N. Bandyopadhyay, Ranajit Sulyok, M. Warth, B. Krska, R. |
| author_browse | Bandyopadhyay, Ranajit Ezekiel, C.N. Krska, R. Sulyok, M. Warth, B. |
| author_facet | Ezekiel, C.N. Bandyopadhyay, Ranajit Sulyok, M. Warth, B. Krska, R. |
| author_sort | Ezekiel, C.N. |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Metabolites of toxigenic fungi and bacteria occur as natural contaminants (e.g. mycotoxins) in feedstuffs making them unsafe to animals. The multi-toxin profiles in 58 commercial poultry feed samples collected from 19 districts in 17 states of Nigeria were determined by LC/ESI–MS/MS with a single extraction step and no clean-up. Sixtythree (56 fungal and seven bacterial) metabolites were detected with concentrations ranging up to 10,200 mgkg-1 in the case of aurofusarin. Fusarium toxins were the most prevalent group of fungal metabolites, whereas valinomycin occurred in more than 50% of the samples. Twelve non-regulatory fungal and seven bacterial
metabolites detected and quantified in this study have never been reported previously in naturally contaminated stored grains or finished feed. Among the regulatory toxins in poultry feed, aflatoxin concentrations in 62% of
samples were above 20 mgkg 1, demonstrating high prevalence of unsafe levels of aflatoxins in Nigeria. Deoxynivalenol concentrations exceeded 1000 mgkg 1 in 10.3% of samples. Actions are required to reduce the
consequences from regulatory mycotoxins and understand the risks of the single or co-occurrence of nonregulatory metabolites for the benefit of the poultry industry. |
| format | Journal Article |
| id | CGSpace79831 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2012 |
| publishDateRange | 2012 |
| publishDateSort | 2012 |
| publisher | Informa UK Limited |
| publisherStr | Informa UK Limited |
| record_format | dspace |
| spelling | CGSpace798312024-08-27T10:35:31Z Fungal and bacterial metabolites in commercial poultry feed from Nigeria Ezekiel, C.N. Bandyopadhyay, Ranajit Sulyok, M. Warth, B. Krska, R. poultry chromatography mycotoxins veterinary drug residues antibiotics animal feed bacterial Metabolites of toxigenic fungi and bacteria occur as natural contaminants (e.g. mycotoxins) in feedstuffs making them unsafe to animals. The multi-toxin profiles in 58 commercial poultry feed samples collected from 19 districts in 17 states of Nigeria were determined by LC/ESI–MS/MS with a single extraction step and no clean-up. Sixtythree (56 fungal and seven bacterial) metabolites were detected with concentrations ranging up to 10,200 mgkg-1 in the case of aurofusarin. Fusarium toxins were the most prevalent group of fungal metabolites, whereas valinomycin occurred in more than 50% of the samples. Twelve non-regulatory fungal and seven bacterial metabolites detected and quantified in this study have never been reported previously in naturally contaminated stored grains or finished feed. Among the regulatory toxins in poultry feed, aflatoxin concentrations in 62% of samples were above 20 mgkg 1, demonstrating high prevalence of unsafe levels of aflatoxins in Nigeria. Deoxynivalenol concentrations exceeded 1000 mgkg 1 in 10.3% of samples. Actions are required to reduce the consequences from regulatory mycotoxins and understand the risks of the single or co-occurrence of nonregulatory metabolites for the benefit of the poultry industry. 2012-08 2017-02-13T13:41:37Z 2017-02-13T13:41:37Z Journal Article https://hdl.handle.net/10568/79831 en Limited Access Informa UK Limited Ezekiel, C.N., Bandyopadhyay, R., Sulyok, M., Warth, B. & Krska, R. (2012). Fungal and bacterial metabolites in commercial poultry feed from Nigeria. Food Additives & Contaminants: Part A, 29(8), 1288-1299. |
| spellingShingle | poultry chromatography mycotoxins veterinary drug residues antibiotics animal feed bacterial Ezekiel, C.N. Bandyopadhyay, Ranajit Sulyok, M. Warth, B. Krska, R. Fungal and bacterial metabolites in commercial poultry feed from Nigeria |
| title | Fungal and bacterial metabolites in commercial poultry feed from Nigeria |
| title_full | Fungal and bacterial metabolites in commercial poultry feed from Nigeria |
| title_fullStr | Fungal and bacterial metabolites in commercial poultry feed from Nigeria |
| title_full_unstemmed | Fungal and bacterial metabolites in commercial poultry feed from Nigeria |
| title_short | Fungal and bacterial metabolites in commercial poultry feed from Nigeria |
| title_sort | fungal and bacterial metabolites in commercial poultry feed from nigeria |
| topic | poultry chromatography mycotoxins veterinary drug residues antibiotics animal feed bacterial |
| url | https://hdl.handle.net/10568/79831 |
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