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

Naima  Aktar; Abdus Salam  Bhuiyan; M Nazrul Islam

doi:10.17017/j.fish.92

Naima Aktar Department of Zoology, Faculty of Life and Earth Science, University of Rajshahi, Rajshahi-6205, Bangladesh
Abdus Salam Bhuiyan Department of Zoology, Faculty of Life and Earth Science, University of Rajshahi, Rajshahi-6205, Bangladesh
M Nazrul Islam Department of Zoology, Faculty of Life and Earth Science, University of Rajshahi, Rajshahi-6205, Bangladesh

Keywords: Fish fry, hatchery, induced breeding, PG, HCG, brood fish, hatching, cost-return-profit

Abstract

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.

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