[Non-specific positive milk ring test(s) in tank milk and Estrumate in the treatment of cattle (author's transl)].

The fact that non-specific milk ring tests were occasionally observed in tank milk provided the reason for doing a survey to detect the possible cause. Among others, non-specific reactions were found to occur after treatment with Estrumate. A regressing corpus luteum may also give rise to non-specific milk ring tests in animals which have not been treated with Estrumate.