Author: Dr. Pabitra Sarmah
The blood parameters like red blood cells count, haemoglobin content, packed cell volume, mean corpuscular value, mean corpuscular haemoglobin concentration and oxygen capacity have been estimated in Anabas testudineus and Channa marulius with a view to correlation of these parameters. In these two species of fishes, the red blood cell counts, haemoglobin content and packed cell volume increase with increasing body weight but these values per gram body weight decrease with increasing body weight but mean corpuscular value, mean corpuscular haemoglobin concentration and mean corpuscular haemoglobin values could not give any specific trend. Statistical relationship between body weight Vs red blood cell counts and haemoglobin content have also been established in these two species of fishes taken into account in the present investigation. In these two cases, the values of correlation coefficient (r) were calculated to be very high which is indicative of the fact that these parameters are highly correlated. Total red blood cell counts, red blood cell counts/g body weight, total haemoglobin content/g body weight, packed cell volume and oxygen capacity values were highest in Anabas testudineus than Channa marulius.
Air breathing fishes, blood parameters, body weight, haemoglobin, oxygen capacity
Studies on blood parameters like RBC counts, haemoglobin content, PCV, MCHC and oxygen capacity etc. have revealed adaptive features correlated with the relative importance of air and water breathing. Purely aquatic breathers have been reported to possess generally lower values of Hb content and oxygen capacity in contrast to the air breathing fishes. Environmental factors play an important role in the physiology of poikilothermic animals. The changes in environmental factors are reflected in haematological parameters and other physiological processes of the body in the animals. The estimation of haematological parameters in animals is of great significance in ascertaining the physiological conditions associated with a loss or gain of fluid by the body. Several environmental, physiological and pathological conditions are responsible for the haematological parameters of animals.
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Pabitra Sarmah (2023). Studies on the Blood Parameters of Two Indian Air Breathing Fishes - Anabas Testudineus (Bloch, 1785) and Channa marulius (Hamilton, 1822). Biological Forum – An International Journal, 15(5a): 690-694.