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The purpose of the study was to carry out serological examinations in foxes originating from farms with unsatisfied reproduction results located in the Silesia, Lublin, Mazowsze, Pomorze, Mazury and Wielkopolska districts. Moreover, the same examinations were conducted in reference to sera of mink with bad reproduction findings. Out of 435 sera from 17 fox farms, HI antibodies were found in 28.6 per...
The studies on the influence of bacteria and parvovirus infection on reproductive failure in silver and blue foxes were carried out on 21 Polish farms. Parvoviral antibodies were detected in 35 out of 229 sera tested. Parvovirus infection could be the main cause of small litter size in only 6 farms An abundant growth of E. coli, Staphylococcus aureus, Streptococcus pyogenes, Proteus vulgaris and Clostridium...