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Effect of loading density and temperature on rainbow trout (Oncorhynchus mykiss) inoculated with Piscirickettsia salmonis. Efecto de la densidad poblacional y temperatura en truchas arco iris (Oncorhynchus mykiss) inoculadas con Piscirickettsia salmonis

Authordc.contributor.authorLarenas Herrera, Julio 
Authordc.contributor.authorContreras Váquez, Julio 
Authordc.contributor.authorOyanedel, S. 
Authordc.contributor.authorMorales Miranda, María Angélica 
Authordc.contributor.authorSmith Schuster, Pedro 
Admission datedc.date.accessioned2018-12-20T14:52:41Z
Available datedc.date.available2018-12-20T14:52:41Z
Publication datedc.date.issued1997
Cita de ítemdc.identifier.citationArchivos de Medicina Veterinaria, Volumen 29, Issue 1, 1997, Pages 113-119
Identifierdc.identifier.issn0301732X
Identifierdc.identifier.urihttp://repositorio.uchile.cl/handle/2250/157185
Abstractdc.description.abstractPiscirickettsiosis is the most important disease affecting farmed salmonids in Chile since 1989. It is produced by a rickettsial agent named Piscirickettsia salmonis which has been described in all species of salmonids reared in seawater. The effect of water temperature (°C) and fish loading density (k/m3) on piscirickettsiosis was evaluated. Rainbow trout (Oncorhynchus mykiss) (n=300) were inoculated by intraperitoneal injection with P. salmonis (0.2 ml in 105.8 TCID50/ml (LF-89 strain) and divided into three groups (n=100 each one) according to water temperature (8, 14 and 18°C). Subsequently, each group was divided in two according to loading densities (5 k/m3 and 20 k/m3); 24% cumulative mortality was obtained in the group with highest density (20 k/m3) and 14°C. This was significantly higher than the other groups (p ≤ 0.001). These results suggest that both, temperature and loading density, and their interactions, are significant epidemiological factors for the disease.
Lenguagedc.language.isoen
Sourcedc.sourceArchivos de Medicina Veterinaria
Keywordsdc.subjectEpidemiology
Keywordsdc.subjectPiscirickettsia salmonis
Keywordsdc.subjectPiscirickettsiosis
Títulodc.titleEffect of loading density and temperature on rainbow trout (Oncorhynchus mykiss) inoculated with Piscirickettsia salmonis. Efecto de la densidad poblacional y temperatura en truchas arco iris (Oncorhynchus mykiss) inoculadas con Piscirickettsia salmonis
Document typedc.typeArtículo de revista
Catalogueruchile.catalogadorapc
Indexationuchile.indexArtículo de publicación SCOPUS
Access notedct.AccessRightsSin acceso a texto completo
uchile.cosechauchile.cosechaSI


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