CONTROL OF PARASITIC INFESTATIONS IN FARMED AND WILD FISH

摘要

A method to control parasitic infestations including infestations with sea lice and isopod species in farmed fish in which antiparasitically active substances are formulated as an injectable composition, optionally in a fish vaccine and where the antiparasitically active substances also protect the fish against parasites for a substantial period of time after injection. A composition for therapeutic and prophylactic control of parasites in farmed and wild fish comprising hexaflumuron or other chitin synthesis inhibitors as the active substance is also described. Hexaflumuron can be administered as a bath treatment, orally through the feed, or as separate injections. The composition has a therapeutic effect against parasites that are already present on the fish and confers protection against new parasitic infestation for an extended period of time after treatment.