This study was performed to compare efficacy of two intramammary treatments at drying off (either 150 mg of cefquinome, Virbactan~R, Virbac or a combination of penethamate hydriodide (100 mg) + benethamine penicillin (280 mg) + framycetin sulphate (100 mg), Mamyzin~R A, Boehringer Ingelheim).
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