EXPERIMENTAL-INFECTION OF MICE WITH HYSTEROTHYLACIUM-ADUNCUM (NEMATODA, ANISAKIDAE) LARVAE FROM MARINE-FARMED TROUT IN CHILE

To evaluate the potential of Hysterothylacium aduncum as an anisakiose -disease producer in mammals and therefore in human consumers. third a nd fourth stage larvae of the nematode from the digestive tract of Onc orhynchus mykiss reared in netpens, were introduced surgically into th e celomic cavity of six live white mice and two dead-and-refrigerated mice as controls. The experiment showed that all larval nematodes died quickly in the live warm-blooded organisms, whereas 73% of the nemato des survived 18-22 hr in the dead-and-refrigerated control mice. This anisakid nematode, having a type MA larvae, is less aggressive and mor phologically different from the Hysterothylacium type MB and therefore might not produce ''anisakiasis''.