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This study was conducted on the 13 hatcheries of Rajshahi district from March to December 2013 to know about the fry production status, induced breeding practices and cost-profit status. Average fry production of Labeo rohita , 93.38±83.32 kg, Catla catla , 62.00±60.84 kg, Cirrhinus cirrhosus , 77.46±58.61 kg, L. calbasu , 14.20±14.60 kg, L. bata , 53.73±50.56 kg, L. gonia , 10.00±0 kg, Heteropneustes fossilis , 5.00±0 kg, Clarias batrachus , 20.00±0 kg, Hypophthalmichthys molitrix , 149.77±138.45 kg, Aristichthys nobilis , 104.54±148.11 kg, Ctenopharyngodon idella , 19.20±15.35 kg, Cyprinus carpio 108.08±77.39 kg and Barbonymus gonionotus , 23.10±14.04 kg were recorded in the surveyed hatcheries. Two types of hormone injections PG (pituitary gland) and HCG (Human chorionic gonadotropin) were used for induced breeding. The rate of 1 st dose of injection of PG varied from 1 to 2 mg/kg and HCG from 100-150 IU/kg and the rate of 2 nd dose of injection of PG varied between 5 and 8 mg/kg. The incubation period and hatching rate in different fish species varied from 10 to 72 hours and 55% to 80%, respectively. The average total cost, gross return and net profit of the hatcheries were 0.667±0.798, 1.152±1.636 and 0.485±0.846 million BDT respectively.

Fry production, induced breeding practices and cost-profit analysis of the hatcheries of Rajshahi district in Bangladesh