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The object of the study was to evaluate the effect of an experimental vaccine against Mycoplasma bovis infections on selected humoral immune parameters in the calves. The study was carried out on twelve calves divided into two equal groups: experimental and control. The experimental calves were subcutaneously injected with experimental vaccine composed of suspension of the M. bovis field strain of...
Due to the wide range of distribution, tendency to stationary persistence and high susceptibility of salmonid fish, vaccination against yersiniosis is an important part of prophylactic programs in many trout farms. The use of autovaccines prepared on the basis of isolates from a given fish farm is considered to be more effective than the use of commercial preparations. The aim of the study was to...
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