Swimming Performance and Haematological Variables in Splenectomized Rainbow Trout, Oncorhynchus Mykiss

• DOI: 10.1242/jeb.171.1.301
• Publication Date: 2021-04-25T03:29:30Z
• Authors: P. Gallaugher; M. Axelsson; A. P. Farrell
• Keywords: 0303 health sciences; 03 medical and health sciences

ABSTRACT Haematological variables were measured during aerobic swimming (45–55% of Ucrit) and at critical velocity (Ucrit) in acutely splenectomized sham-operated rainbow trout. There was no correlation between haematocrit (Hct) Ucrit either group fish. The control values for the haematological did not differ significantly two groups Some changed Ucrit, but there significant differences any variables. Arterial blood oxygen tension reduced Ucrit. content maintained fish because Hct increased significantly. However, animals, decreased (compared to values) change. Plasma concentrations lactate catecholamines elevated only We provide evidence a graded spleen contraction swimming.