Feed-borne spread of Salmonella spp. to pigs has been documented several times in recent years in Sweden. Experiences from the field suggest that feed-associated serotypes might be less transmittable and subsequently easier to eradicate from pig herds than other serotypes more commonly associated with pigs. Four Salmonella serotypes were selected for experimental studies in pigs in order to study transmissibility and compare possible differences between feed-associated (S Cubana and S Yoruba) and pig-associated (S Derby and S Typhimurium) serotypes.
These results show that all four selected serotypes were able to be transmitted in at least one of the trials.
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The article was contributed by National Veterinary Institute, SVA, previously published in BioMed Central.