Eimeria vison on Dutch mink farms

Clinical coccidiosis is rarely if ever reported on Dutch mink farms. In other species low-grade non-lethal infections with coccidia are known to have a large impact on production[1], and in minks these infections have previously been implicated as a cause or contributing factor to overall poor performance and intestinal problems in June and July, called ‘June blues’. To determine if, despite the absence of clinical outbreaks, coccidia are common in Dutch minks, and which species are involved, a small screening of six farms was organized.