The discovery of a banned antibiotic in feed in the Netherlands has led to the shutdown of 102 Dutch pig and veal farms and 11 in Germany.
More than 3,000 calves have been culled (including 2,500 calves on two big veal operations) and a criminal investigation is under way.
Furazolidone is known to be cancer-causing, and has been banned in Europe since 1995.
However, meat from the farms has not been recalled, because no immediate risk to public health was seen.
Meat from farms using the contaminated feed was sold in Belgium, France, Germany and Italy as well as in the Netherlands.
It was feared that 50,000 pigs on 97 farms would have to be culled, due to the feed contamination, unless negative test evidence is provided for each animal.
Tests on these farms are continuing
Operations at the Van Kats Food & Feed feed company have been suspended.
Management at the company deny responsibility for feed contamination, maintaining that pigeon excrement was the source.
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