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Resistance to 17 antimicrobial substances was tested in 529 Salmonella strains isolated from animals, their environment, and animal feeds during the years 1994-1996. Most of the strains (310) belonged to serovar of S. enteritidis. Other examined serovars were as follows: S. typhimurium (23 strains), S. mbandaka (22 strains), S. livingstone (14 strains) and S. agona (12 strains). Ninety-seven of the...
The sera against Haemophilus somnus antigens were obtained by immunization of hens, a rabbit, a goat and a bull; four different routes of immunization were used. In the immunoblotting the reactivity of the obtained sera with H. somnus as well as that of strains of Salmonella gallinarum-pullorum, S. enteritidis, S. typhimurium and S. dublin isolated from poultry in Poland was examined. Intensive cross-reactions...
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