Evaluación de la eficacia de tres vacunas frente a Lactococcus garvieae en trucha arcoíris (Oncorhynchus mykiss) mediante reto por cohabitación.

  1. Isabel Fernandez Poch 3
  2. Tania Pérez-Sánchez 3
  3. Hector Fuertes 3
  4. Daniel Vendrell 1
  5. Imanol Ruiz-Zarzuela 3
  6. Francesc Padrós 2
  1. 1 Laboratorios Hipra, S.A., Amer, España.
  2. 2 Universitat Autònoma de Barcelona
    info

    Universitat Autònoma de Barcelona

    Barcelona, España

    ROR https://ror.org/052g8jq94

  3. 3 Universidad de Zaragoza
    info

    Universidad de Zaragoza

    Zaragoza, España

    ROR https://ror.org/012a91z28

Journal:
AquaTIC: revista electrónica de acuicultura

ISSN: 1578-4541

Year of publication: 2017

Issue: 47

Pages: 10-19

Type: Article

More publications in: AquaTIC: revista electrónica de acuicultura

Abstract

Lactococcus garvieae (L. garvieae) is considered an emergent pathogen because of its zoonotic potential, an emergent pathogen (Meyburgh y cols., 2017) both in marine and freshwater aquaculture, and it causes important economic losses in summer, when water temperature rises (Vendrell y cols., 2006). Because of this, an adequate vaccination is the key to minimize the impact of that bacterium in those cultivated species that are more susceptible to his effects. In the present study, the efficacy of three L. garvieae vaccines was evaluated with a cohabitation infection 28 days post-vaccination. A commercial vaccine (Icthiovac LG) showed the best results with a RPS=87.50%, followed by an experimental trivalent vaccine (L. garvieae and two Y. ruckeri strains) with a RPS=81.25% and finally an experimental tetravalent vaccine (L. garvieae, two Y. ruckeri strains and Aeromonas salmonicida subsp. salmonicida) with a RPS=70.93%. The mortality results of each group was compared with those to the control group, indicating an increase of the immunity to this pathogen in all vaccinated groups (p<0.05).

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