| Title | Innate susceptibility differences in chinook salmon Oncorhynchus tshawytscha to Loma salmonae (Microsporidia). |
| Publication Type | Journal Article |
| Year of Publication | 2000 |
| Authors | Shaw, RW, Kent, ML, Adamson, ML |
| Journal | Dis Aquat Organ |
| Volume | 43 |
| Issue | 1 |
| Pagination | 49-53 |
| Date Published | 2000 Oct 25 |
| ISSN | 0177-5103 |
| Keywords | Animals, Aquaculture, Disease Susceptibility, Fish Diseases, Gills, Histocytochemistry, Microsporidia, Microsporidiosis, Northwestern United States, Prevalence, Salmon |
| Abstract |
Loma salmonae (Putz, Hoffman and Dunbar, 1965) Morrison & Sprague, 1981 (Microsporidia) is an important gill pathogen of Pacific salmon Oncorhynchus spp. in the Pacific Northwest. Three strains of chinook salmon O. tshawytscha were infected in 2 trials with L. salmonae by feeding of macerated infected gill tissue or per os as a gill tissue slurry. Intensity of infection was significantly higher in the Northern stream (NS) strain as compared to the Southern coastal (SC) and a hybrid (H) strain derived from these 2 strains. Both wet mount and histological enumeration of intensity of infection demonstrated strain differences. Survival in the NS strain was significantly lower than the other strains. The NS strain may represent a naive strain and be less able to mount an effective immune response against the parasite.
|
| DOI | 10.3354/dao043049 |
| Alternate Journal | Dis Aquat Organ |
| PubMed ID | 11129380 |
OREGON STATE UNIVERSITY
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