Dutch authorities are withdrawing animal feed from hundreds of farms following the discovery of aflatoxin, a carcinogenic, in milk from four dairy farms.
The feed, which originated in eastern Europe, and where shipments from Serbia and Romania were found to contain the toxin. Animal feed sector organisation Trust Feed said it is recalling all feed made with sweet corn from eastern Europe as a precaution.
The feed may be the source of the milk contamination the food safety body NVWA is quoted as saying by the national news broadcaster.
Production on the farms, which have not been named, has been stopped while experts try to determine the source of the contamination.
Earlier this week, it emerged contaminated animal feed from Serbia had been discovered in the Netherlands at five pig farms. Three other farms had also received contaminated feed from Romania. According to the Dutch farming news website boederij.nl, it has also been found in chicken feed.
The contamination was first discovered in Germany last Friday, where the food safety authority said a possible 6,500 farms are involved.