Catastro histológico de cuatro especies de moluscos cultivados en Chile susceptibles a enfermedades de declaración obligatoria a la OIE

Translated title of the contribution: Histological survey of four species of cultivated molluscs in Chile susceptible to OIE notifiable diseases

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Abstract

Shellfish cultured in Chile were analyzed to detect the presence of diseases notifiable to OIE (Office International des Epizooties: the World Organization for Animal Health). Tissue samples of the susceptible species, the abalones Haliotis discus hannai, H. rufescens, and oysters Crassostrea gigas, and Ostrea chilensis cultured in Chile were collected in winter and summer. Histological sections were performed of all species; furthermore, tissue from the Chilean oyster (O. chilensis) was processed for transmission electron microscopy (TEM) to describe the Bonamia-like protozoan detected in the haemocytes of some oysters. The only pathogen from the list of notifiable diseases of the OIE was Xenohaliotis californiensis in H. rufescens. This bacterium formed intracellular inclusions in digestive epithelia, mainly in the post-esophagus and digestive gland. The ultrastructural description of the Bonamia -like protozoan shows it is similar in some features and different in others from the species B. ostreae. and B. exitiosa included in the list of notifiable diseases of the OIE.

Translated title of the contributionHistological survey of four species of cultivated molluscs in Chile susceptible to OIE notifiable diseases
Original languageSpanish
Pages (from-to)561-569
Number of pages9
JournalRevista de Biologia Marina y Oceanografia
Volume44
Issue number3
DOIs
StatePublished - 1 Jan 2009

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