Less antibiotics - higher mastitis risk?
Every use of antibiotics bears the risk for development of antibiotic resistances and to promote resistant bacteria. Thus, the use of such substances has to be questioned. In dairy farming antibiotic dry cow treatment is an important tool to reduce mastitis on herd level. Usually, if an indication exists, all quarters of an udder will be treated with antibiotics disregarding the infection status of the individual quarter. Therefore the question arises, whether it would be possible to minimize the use of antibiotics by quarterspecific treatment without increasing the infection risk of the untreated quarters of the same cow.