Sites of Uptake of Geosmin, a Cause of Earthy-Flavor, in Rainbow Trout (Salmo gairdneri)

1984 ◽  
Vol 41 (8) ◽  
pp. 1224-1226 ◽  
Author(s):  
Jon From ◽  
Viggo Hørlyck
Keyword(s):  
Small Intestine ◽  
Rainbow Trout ◽  
Salmo Gairdneri ◽  
Rapid Absorption ◽  
Absorption Sites

To identify absorption sites of earthy-flavor in rainbow trout (Salmo gairdneri), we placed the geosmin-producing algae Symploca muscorum on four locations. We showed that the most rapid absorption occurred in the gills (6 min), followed by the skin (1.5 h), small intestine (4 h), and stomach (7 h). In trout farming, if ingestion of algae is reduced, then the most significant route of uptake of geosmin will be through the gills and skin.

The development of the stratum granulosum of the small intestine of the rainbow trout (Salmo gairdneri)

1982 ◽  
Vol 60 (6) ◽  
pp. 1513-1516 ◽  
Author(s):  
T. Bergeron ◽  
Bill Woodward
Keyword(s):  
Small Intestine ◽  
Rainbow Trout ◽  
Granule Cells ◽  
Critical Role ◽  
Salmo Gairdneri ◽  
Chronological Age ◽  
Stratum Granulosum

The ontogeny of the stratum granulosum within the small intestine of the rainbow trout (Salmo gairdneri) was related to the chronological age of the animal. The component granule cells were first seen many weeks after the development of the collagenous stratum compactum. It is therefore concluded that the granule cells do not perform a critical role in stratum compactum formation. In addition, it is proposed that the stratum granulosum develops because of resistance of the stratum compactum to cellular penetration.

Temperature Selection of Rainbow Trout (Salmo gairdneri) Fingerlings in Vertical and Horizontal Gradients

1971 ◽  
Vol 28 (11) ◽  
pp. 1801-1804 ◽  
Author(s):  
R. W. McCauley ◽  
W. L. Pond
Keyword(s):  
Rainbow Trout ◽  
Salmo Gairdneri ◽  
Temperature Preference ◽  
Temperature Selection ◽  
Horizontal Gradients ◽  
Significant Difference ◽  
Preferred Temperatures ◽  
Laboratory Investigations ◽  
Horizontal Temperature Gradients ◽  
Selection Of

Preferred temperatures of underyearling rainbow trout (Salmo gairdneri) were determined in both vertical and horizontal temperature gradients. No statistically significant difference was found between the preferred temperatures by the two different methods. This suggests that the nature of the gradient plays a lesser role than generally believed in laboratory investigations of temperature preference.

scholarly journals The Distribution of 35S-Sulfadiazine and 14G-Trimethoprim in Rainbow Trout, Salmo Gairdneri

1979 ◽  
Vol 20 (1) ◽  
pp. 25-37 ◽  
Author(s):  
Torill Bergsjø ◽  
Inger Nafstad ◽  
Kristian Ingebrigtsen
Keyword(s):  
Rainbow Trout ◽  
Salmo Gairdneri
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