Fumonisins, an underestimated threat to poultry

Fumonisin prevalence

Globally, the predominant grain used in poultry feeds is corn (maize). As the occurrence of fumonisins is ubiquitous and not limited to a specific climate, these toxic substances constitute a worldwide phenomenon.

The latest BIOMIN Mycotoxin Survey results show that 73 percent of 1,071 corn samples analyzed tested positive for fumonisin contamination with an average of positives of 2,914 parts per billion, or ppb. 63 percent of 1,676 finished feed samples analyzed tested positive for fumonisins with an average contamination of 926 ppb.

Table 1: Fumonisin occurence by commodity

CornSoybeanWheatOther GrainsFinished Feed
Samples tested1,0711602081911,676
Positive samples [%] 7323154063
Maximum contamination [ppb]154,0009774,33337,51525,041
Average contamination of positive samples [ppb]2,9141234331,526926
Median of positive [ppb]1,03932119401312

Understanding fumonisins' effects in poultry

Cutting-edge technologies allowing for more finely-tuned analysis of mycotoxins and their impacts on animals account for recent evidence that fumonisins occurring at subclinical concentrations predispose birds to metabolic and immunologic disorders.

Recent data showed that the ingestion of fumonisins affected the expression of proteins related to pro- and anti-inflammatory responses in the intestinal tract of broiler chickens (Grenier et al., 2014). At a concentration of 20 ppm - the limit set by the EU for poultry - fumonisins induce higher excretion of Eimeria strains, parasites responsible for coccidiosis (Grenier et al., 2015). Considering the high density of birds in large-scale operations, the ingestion of contaminated feed with fumonisins may promote the parasite transmission between birds.

A separate experiment using similar concentrations reported an effect on proteins in chickens’ intestines involved in drug metabolism that could alter the effectiveness of some drugs (Antonissen et al., 2014). Altogether, these recent findings suggest that the intestinal tract of birds is very sensitive to the exposure to fumonisins.


For a long time poultry have been suggested to be less susceptible to fumonisins lacking clinical signs of impairment even with high contamination levels. Recent findings focusing on subclinical effects of fumonisins suggest that the intestinal tract of birds is very sensitive to the exposure to fumonisins. Results of scientific studies in different poultry species indicate that fumonisins indeed represent a major risk to animal health.

For more about mycotoxin occurrence and main trends in 2014 have a look at this infographic:

Surveying the Global Mycotoxin Threat

For further information contact the contributor:

Product Manager

BIOMIN Holding GmbH
Erber Campus 1
3131 Getzersdorf, Austria

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