Green Global
Foundation   Journal
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INVESTIGATION ON THE HEALTH STATUS OF JUVENILE INDIAN MAJOR CARP (Cirrhinus cirrhosus) FROM VARIOUS FARMS OF MYMENSINGH AREA (Pages : 6 - 11)

An experiment was carried out to evaluate the health status of juvenile Indian major carp (Cirrhinus cirrhosus) from a Government fish farm and a NGO fish farm in the Mymensingh region through clinical and histopathological observations for a period of 9 months from April 2005 to December 2005. Water quality parameters (temperature, dissolved oxygen, pH and total hardness) were recorded on a monthly basis. Samples of skin, muscle, gill, liver and kidney were examined through histoalogical technique. Clinical signs such as weak body, red spots, scale loss, gill discoloration and rough skin in caudal and ventral region were observed, particularly in the month of November and December. The examined fishes were more or less normal in appearance in the summer season (April-May). A moderate pathological changes were observed in all the examined organs of fishes in the months of June to August, while the severity of pathological changes were increased in the months of September and October. However, marked pathological changes were observed in the months of November and December. Among all the affected organs, gill was the severely affected, followed by skin and muscle, liver and the kidney. Clinical and histopathological studies revealed that juvenile carps (C. cirrhosus) of the both fish farms were more affected in the colder months of the year, and the severity of the infection was more pronounced in the Government fish farm.Download