R.A. Pityer J.J. Rach W.H. Gingerich 1987 <p>1. Total blood volume and relative blood volumes in selected tissues were determined in non-anesthetized, confined rainbow trout by using ⁵¹Cr-labelled trout erythrocytes as a vascular space marker.</p><p>2. Mean total blood volume was estimated to be 4.09 ± 0.55 ml/100 g, or about 75% of that estimated with the commonly used plasma space marker Evans blue dye.</p><p>3. Relative tissue blood volumes were greatest in highly perfused tissues such as kidney, gills, brain and liver and least in mosaic muscle.</p><p>4. Estimates of tissue vascular spaces, made using radiolabelled erythrocytes, were only 25–50% of those based on plasma space markers.</p><p>5. 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.</p><p><br></p> application/pdf 10.1016/0300-9629(87)90119-8 en Elsevier Estimates of plasma, packed cell and total blood volume in tissues of the rainbow trout (<i>Salmo gairdneri</i>) article