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Spawning biology and captive breeding of vulnerable loach Botia histrionica (Blyth) in Cooch Behar, West Bengal, India

This study describes the dosage of WOVA-FH for induced breeding of Botia histrionic.Synthetic hormone, WOVAFH, was used to induce the species at different doses namely 0.5 ml/kg of body weight as 1st dose, 0.25 ml/kg of body weight as 2nd dose, 0.025ml/Fish as 3rd dose and 0.0125 ml/Fish as 4th dose) in each breeding trial. The higher fertilization, hatching and survival rates were found with fish injected with 0.025 ml/fish. Botia histrionica require very little amount of synthetic hormone for breeding in captivity. The present study confirmed that 0.025 ml/fish of WOVA-FH was optimum for induced breeding of Botia histrionic.

Author(s): Arpita Dey and Sudip Barat

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