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Oszacowano częstość występowania Listeria monocytogenes w tuszach pstrągów tęczowych dostępnych w obrocie handlowym. Listeria spp. wyizolowano ze wszystkich prób ryb zakupionych w lokalnych sklepach rybnych, a w 50% przypadków była to L. monocytogenes. W rybach pobieranych w różnych okresach czasu bezpośrednio od producenta bakterii tych nie stwierdzono. W gravadach z pstrąga tęczowego zainokulowanych...
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