ELECTRONICAL LARVICULTURE NEWSLETTER ISSUE 87

1 SEPTEMBER 1999


PROTECTION OF GILTHEAD SEABREAM AGAINST PASTEURELLOSIS AT THE LARVAL STAGES

B. Magarinos, J.L. Romalde, J.L. Barja, S. Nunez, A.E. Toranzo-1999

Bulletin of the European Association of Fish Pathologists, 19(4): 159-161

Abstract:

We present here the first evidence of the achievement of an effective protection against pasteurellosis of 50 mg gilthead seabream using a toxoid-enriched whole-cell bacterin, commercialised as DI vaccine, by dip or bath procedures. The relative percent survival (RPS) values were slightly higher by the dip method (84-90) than by prolonged bath (77-80). On the basis of these results, we recommend a first immunization when larvae are around 50 mg and a booster immunization when fish reach 2 g body weight.

(Departamento de Microbiologia y Parasitologia, Facultad de Biologia and Instituto de Acuicultura, Universidad de Santiago, Santiago de Compostela 15706, Spain, e-mail: mpaetjlb@usc.es)

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