Effect of three dietary oils on disease susceptibility in Arctic charr (Salvelinus alpinus L.) during cohabitant challenge with Aeromonas salmonicida ssp. salmonicida
By Jørgen B. Lødemel, T. Mayhew, R. Myklebust, R. L. Olsen, S. Espelid, E. Ringø. 2001
90 citations recorded by the source corpus.
Arctic charr (Salvelinus alpinus L.) were fed diets based on a commercial recipe supplemented with either linseed, soybean or marine oil prior to cohabitant challenge with Aeromonas salmonicida ssp. salmonicida. Mortality varied significantly between the three dietary groups. Highest mortality (48%) was observed in fish fed the marine oil and the lowest mortality (20%) was in the group fed soybean oil. Transmission electron microscopy (TEM) examination of the digestive tract of uninfected fish demonstrated substantial numbers of bacterial cells between microvilli. However, only a few bacteria were recovered that were associated with the microvilli of infected fish. Immunocytochemical staining/labelling investigations using TEM and an immunogold method were performed on mid-gut segments of fish fed the marine oil diet and showed augmentation of goblet cells and the presence of A. salmonicida ssp. salmonicida in the gastrointestinal tract of diseased fish after challenge with the pathogen. It is suggested that the gastrointestinal tract could be an infection route of A. salmonicida ssp. salmonicida. The greater prevalence of goblet cells supports the suggestion that sloughing off mucus is a protective response against bacterial infections. These results make an important contribution to our understanding of how nutrition can affect the disease resistance of fish.
Subfields: Aquatic Science, Immunology
View Paper: https://www.semanticscholar.org/paper/e396753cdf7822a0b57f49e9dcc0dbaf8e9273ef
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In Aquatic Science
In Immunology
Citations in the corpus
- Probiotics in aquaculture (2002, background): “, 1999); and (c) gastrointestinal tract (Sakai, 1979; Rose et al., 1989; Chair et al., 1994; Olsson, 1995; Grisez et al., 1996; Olsson et al., 1996; Romalde et al., 1996; Jöborn et al., 1997; Robertson et al., 2000; Lødemel et al., 2001).”
- Acute stress alters the intestinal lining of Atlantic salmon, Salmo salar L.: An electron microscopical study (2002, background): “…fish intestinal microbiota (Ringø et al. 1997), and although the GI tract probably provides an infection route for pathogenic strains of bacteria (Lødemel et al. 2001; Grisetz et al. 1996; Olsson 1995; Rose et al. 1989; Sakai 1979), no reports are presently available describing the effects of…”
- Composition, Diversity, and Origin of the Bacterial Community in Grass Carp Intestine (2012, background): “[45], and Yang [51] that the intestine might be the primary location for Aeromonas colonization under stress-induced infections.”
- Bacterial symbiosis in the fish gut and its role in health and metabolism (2017, methodology): “Several researches have been conducted to explore the mode of association of bacteria in the GITof different fish species using SEM and TEM (Ringø and Olsen 1999; Hellberg and Bjerk s 2000; Lødmel et al. 2001).”
- The Gut Microbiota of Marine Fish (2018, unknown): “This study and others (Hardy, 1997; Lødemel et al., 2001) have shown that replacement of fish oils with plant oils can actually improve fishes’ resistance to pathogenic bacteria, for which Ringø et al. (2002) suggests the associated gut microbial change plays a role.”
- Effect of dietary components on the gut microbiota of aquatic animals. A never‐ending story? (2016, result): “These results might have some interest as Lødemel (2000) and Lødemel et al. (2001) demonstrated that survival of Arctic charr after challenge with A. salmonicida subsp. salmonicida was improved by dietary SBO.”