Abstract
The present work in an endeavour to study the effect of different kinds of supplementary feeding on certain blood parameters in a freshwater air breathing fish, Anabas testudineus (Bloch). Different haematological values in control (Group I) group of fishes were -RBC counts, 2.1±0.006 mfflion/mm3; Hb content, 10.8±0.10g%; PCV or haematocrit value, 32.0±1.42; MCH, 5.143pg; MCV, 15.42mm3 and MCHC, 33.75%. The experimental animals were fed with six (Group II-V11) types of supplementary feeds which caused significant increase in RBC counts, Hb content and PCV values as compared to control which is indicative of the facts that experimental animals become more healthy as compared to control. The reason for such changes have been discussed in this paper.