Gingerich, W. H., and Pityer, R. A., 1989, Comparison of whole body and tissue
blood volumes in rainbow trout (Salmo gairdneri) with super(125)I bovine serum
albumin and super(51)Cr-erythrocyte tracers: Fish Physiology and Biochemistry, v.
6, no. 1, p. 39-47.

Abstract: 

Total, packed cell and plasma volume estimates were made for the whole body and
selected tissues of rainbow trout (Salmo gairdneri ), by the simultaneous injection
of radiolabelled trout erythrocyte ( super(51)Cr- RBC) and radioiodinated bovine
serum albumin ( super(125)I-BSA) tracers. Blood volumes were estimated with
both markers separately by the tracer-hematocrit method and as the combination of
the super(51)Cr-RBC packed cell and super(125)I-BSA plasma volumes. Estimates
of total blood volumes in most tissues were significantly smaller when calculated
from the super(51)Cr-RBC data than when calculated by the other two methods. It
is not clear whether the expanded plasma volume is the result of the distribution of
erythrocyte-poor blood into the secondary circulation or the result of extravascular
exchange of plasma proteins.

Keywords: 

blood, radioactive-tracers, hematology, analytical-techniques, volumetric-analysis,
body-organs, tissues, Salmo-gairdneri