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Research article - Peer-reviewed, 2020

Multi-Mycotoxin Occurrence in Dairy Cattle and Poultry Feeds and Feed Ingredients from Machakos Town, Kenya

Kemboi, David Chebutia; Ochieng, Phillis E.; Antonissen, Gunther; Croubels, Siska; Scippo, Marie-Louise; Okoth, Sheila; Kangethe, Erastus K.; Faas, Johannes; Doupovec, Barbara; Lindahl, Johanna F.; Gathumbi, James K.

Abstract

Mycotoxins are common in grains in sub-Saharan Africa and negatively impact human and animal health and production. This study assessed occurrences of mycotoxins, some plant, and bacterial metabolites in 16 dairy and 27 poultry feeds, and 24 feed ingredients from Machakos town, Kenya, in February and August 2019. We analyzed the samples using a validated multi-toxin liquid chromatography-tandem mass spectrometry method. A total of 153 mycotoxins, plant, and bacterial toxins, were detected in the samples. All the samples were co-contaminated with 21 to 116 different mycotoxins and/or metabolites. The commonly occurring and EU regulated mycotoxins reported were; aflatoxins (AFs) (70%; range 0.2-318.5 mu g/kg), deoxynivalenol (82%; range 22.2-1037 mu g/kg), ergot alkaloids (70%; range 0.4-285.7 mu g/kg), fumonisins (90%; range 32.4-14,346 mu g/kg), HT-2 toxin (3%; range 11.9-13.8 mu g/kg), ochratoxin A (24%; range 1.1-24.3 mu g/kg), T-2 toxin (4%; range 2.7-5.2 mu g/kg) and zearalenone (94%; range 0.3-910.4 mu g/kg). Other unregulated emerging mycotoxins and metabolites including Alternaria toxins, Aspergillus toxins, bacterial metabolites, cytochalasins, depsipeptides, Fusarium metabolites, metabolites from other fungi, Penicillium toxins, phytoestrogens, plant metabolites, and unspecific metabolites were also detected at varying levels. Except for total AFs, where the average contamination level was above the EU regulatory limit, all the other mycotoxins detected had average contamination levels below the limits. Ninety-six percent of all the samples were contaminated with more than one of the EU regulated mycotoxins. These co-occurrences may cause synergistic and additive health effects thereby hindering the growth of the Kenyan livestock sector.

Keywords

aflatoxins; ergot alkaloids; feed safety; food safety; mycotoxins; sub-Saharan Africa

Published in

Toxins
2020, volume: 12, number: 12, article number: 762
Publisher: MDPI

Authors' information

Kemboi, David Chebutia
University of Nairobi
Ochieng, Phillis E.
Ghent University
Antonissen, Gunther
Ghent University
Croubels, Siska
Ghent University
Scippo, Marie-Louise
University of Liege
Okoth, Sheila
University of Nairobi
Kangethe , Erastus K.
No organisation
Faas, Johannes
BIOMIN Res Ctr
Doupovec, Barbara
BIOMIN Res Ctr
International Livestock Research Institute (ILRI)
Swedish University of Agricultural Sciences, Department of Clinical Sciences
Uppsala University
Gathumbi, James K.
University of Nairobi

Sustainable Development Goals

SDG2 Zero hunger

UKÄ Subject classification

Animal and Dairy Science
Food Science

Publication Identifiers

DOI: https://doi.org/10.3390/toxins12120762

URI (permanent link to this page)

https://res.slu.se/id/publ/110207