Vol. 5, Issue 1, Part E (2019)

Abstract
A Systematic study has been carried out the explore the cyclic changes in oxygen consumption (VO) and different haematological parameters in an air breathing fish, Anabas testudineus (Bloch). Two peaks of activity were marked in both the parameters. A positive correlation occurs between RBC/VO₂, Hb/VO₂ and PCV/VO₂, in both the sexes. The increase in VO₂, seems to be more associated with the increase in RBC counts than with the increase in Hb content and PCV. Cyclic changes in VO₂, and different blood parameters show parallelism and a physiological balance exists between these two parameters.