6533b82ffe1ef96bd12947af

RESEARCH PRODUCT

Priming of host resistance to protect cultured rainbow trout Oncorhynchus mykiss against eye flukes and parasite-induced cataracts

Otto SeppäläOtto SeppäläAnssi KarvonenH. Halonen

subject

Fish farmingPriming (immunology)AquacultureAquatic ScienceBiologyEyeCataractHost-Parasite InteractionsMicrobiologyFish DiseasesAquacultureAnimalsParasite hostingHelminthsEye Infections ParasiticEcology Evolution Behavior and SystematicsEcologybusiness.industryAquatic animalbiology.organism_classificationImmunity InnateOncorhynchus mykissRainbow troutTrematodaTrematodabusiness

description

In the present study, immunologically naive rainbow trout Oncorhynchus mykiss were experimentally exposed to a low-level Diplostomum spathaceum (Trematoda) infection to stimulate acquired resistance and, along with unexposed controls, were subsequently exposed to natural infection for 8 weeks. The priming of the host resistance, designed to simulate a procedure applicable in aquaculture, decreased the number of establishing parasites compared to untreated controls by the end of the experiment. This effect was slow and did not protect the fish against the parasite-induced cataracts. The results suggest that this type of priming of host resistance is probably inefficient in preventing the deleterious effects of D. spathaceum infection in aquaculture conditions.

yearjournalcountryeditionlanguage
2010-06-12Journal of Fish Biology
https://doi.org/10.1111/j.1095-8649.2010.02597.x