Buchmann, Kurt and Jokumsen, Alfred (2020) Nyt bæredygtigt middel kan måske fjerne parasit, som angriber regnbueørreder. [A promising sustainable agent against a tough parasite in rainbow trout.] ICROFS Nyt, 22 September 2020, pp. 1-2. [Submitted]
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Summary
Hudsnylteren Ichthyobodo (Costia) og dens betydning og kontrol i økologisk ørredopdræt.
I Shelterfish projektet er der særligt fokus er på at bekæmpe infektioner med især hudsnylteren Ichthyobodo necator – også ofte benævnt Costia necatrix.
Den ydre overflade på en fisk omfatter hud, finner og gæller, og alle dele kan tjene som fasthæftnings- og opholdssted for en lang række parasitter. Økologisk opdrættet regnbueørred angribes af flere typer af disse hudsnyltere, men den parasitiske flagellat Ichthyobodo necator er en af de værste. Der findes ikke vacciner mod denne infektion, hvorfor tilsætning af aktive stoffer til opdrætsvandet oftest benyttes. I Shelterfish-projektet undersøges et nyt bakterielt overflade aktivt stof mod hudsnylteren. Det bakterielle overfladestof har vist gode resultater mod fiskedræber og amøber i gæller hos regnbueørred.
Summary translation
The ectoparasite Ichthyobodo (Costia) - significance and control in organic trout farming
Shelterfish project in particular focus´ to control infections with the ectoparasite Ichthyobodo necator – also often termed Costia necatrix.
The external surfaces of a fish includes skin, fins and gills and all parts may serve as attachment and living place for several parasites. Organic farmed rainbow trout are attacked by several types of these ectoparasites, but Ichthyobodo necator is one of the worst. No vaccines are available against the infection, hence active substances are most often added to the water. In Shelterfish project a new bacterial surfactant is investigated to control the ectoparasitic infection. This surfactant has shown good results against Ichthyophtirius (white spot disease) and against amoebae.
| EPrint Type: | Newspaper or magazine article |
|---|---|
| Keywords: | Ichthyobodo necator, Costia necatrix, freshwater, gills, skin, ecto-parasites, rainbow trout |
| Subjects: | Animal husbandry > Health and welfare |
| Research affiliation: | Denmark > Organic RDD 4 > ShelterFish |
| DOI: | 10.1111/jfd.13162 |
| Deposited By: | Jokumsen, Senior Advisory Scientist Alfred |
| ID Code: | 38403 |
| Deposited On: | 28 Sep 2020 09:34 |
| Last Modified: | 28 Sep 2020 09:34 |
| Document Language: | Danish/Dansk |
| Status: | Submitted |
| Refereed: | Not peer-reviewed |
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