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Updated: May 29, 2026

Quantification of Fungal Colonization, Sporogenesis, and Production of Mycotoxins Using Kernel Bioassays
Published on: April 23, 2012
Occurrence of fumonisins in feed for swine and horses
Hermínia M L Martins1, Inês F M Almeida, Carolina R L Camacho
1INRB, IP - Laboratório Nacional de Investigação Veterinária, Estrada de Benfica 701, 1549-011 Lisboa, Portugal. marina.martins@lniv.min-agricultura.pt
Background:
Fumonisin B1 (FB1), fumonisin B2 (FB2), and overall mycotoxins feed contamination may cause several effects on crops production and animal health. The contamination occurred predominantly in corn and corn-based foods and feeds.
Aims:
This survey intends to provide the occurrence of fumonisins in swine and equine mixed feeds in Portugal, making an overview from 2007 to 2010.
Methods:
A total of 363 samples were analyzed, 258 from swine feed and 105 from horse feed with HPLC method. The detection limit was 50 μg/kg for FB1 and 100 μg/kg for FB2.
Results:
The overall results were 13% of FB1 occurrence from 2007 to 2010. FB1 was detected in about 17.0% of swine feed samples, being more frequent in 2010 (32.9%). In this year (2010) levels ranged between 66.7 and 3815.5 μg/kg. FB2 occurred only in 2010 in swine feed (6 samples, ranging between 104.0 to 467.2 μg/kg) and in horse feed (1 sample).
Conclusions:
This represents an increase in occurrence through the analyzed years, but this may not be a threat to animal health, once the values were below the recommended guidance values from European Commission.
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Fungal Group Zygomycota
Fungal Phylum Ascomycota
Sources of Food Contamination
Microorganisms in Agriculture and Food industry

