Effects of Mustard Oil Cake on Haematological Parameters of the Freshwater Fish Channa punctatus

摘要

MOC, a widely used bio-fertilizer in agriculture and fish cultivation in India, was considered to observe the changes in haematological parameters of Channa punctatus (Bloch). The present study revealed a decreasing trend of haemoglobin volume and erythrocytes count and increasing value for MCH when this fish was exposed to 0.42 mg l~(-1) concentration of mustard oil cake for 4,7,14,21 and 28 days of exposure respectively in laboratory conditions. Study also showed variation of DCL with prolong period of exposure.