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Estimates of plasma, packed cell and total blood volume in tissues of the rainbow trout (Salmo gairdneri )

Comparative Biochemistry and Physiology A

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Abstract

Total blood volume and relative blood volumes in selected tissues were determined in non-anesthetized, confined rainbow trout by using super(51)Cr-labelled trout erythrocytes as a vascular space marker. Mean total blood volume was estimated to be 4.09 plus or minus 0.55 ml/100 g, or about 75% of that estimated with the commonly used plasma space marker Evans blue dye. Relative tissue blood volumes were greatest in highly perfused tissues such as kidney, gills, brain and liver and least in mosaic muscle. Estimates of tissue vascular spaces, made using radiolabelled erythrocytes, were only 25-50% of those based on plasma space markers. The consistently smaller vascular volumes obtained with labelled erythrocytes could be explained by assuming that commonly used plasma space markers diffuse from the vascular compartment.

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Estimates of plasma, packed cell and total blood volume in tissues of the rainbow trout (Salmo gairdneri )
Series title:
Comparative Biochemistry and Physiology A
Volume
87A
Issue:
2
Year Published:
1987
Language:
English
Contributing office(s):
Upper Midwest Environmental Sciences Center
Description:
pp. 251-256
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
First page:
251
Last page:
256
Number of Pages:
6