Epizootiological aspects of VHS in Spain.

In: Fish Diseases: Fourth COPRAQ Session. (Ed. ACUIGRUP), Editora ATP, Madrid.
VHS produces high mortality among the affected population in Spain in the same way as in other countries. This disease takes all the attention of hatchery owners and health official agencies. In this paper the different VHS outbreaks (which occurred in Spain) are studied and the stress factors, symptoms as well as several systems for disease erradication are particularly analyzed. Factors causing stress are: physical and chemical properties of water, pond design and geographic location of hatcheries.
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