Captive Breeding of Endangered Ompok pabda with Ovatide |
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| Authors: | Siddartha Purkayastha Sanjay Sarma Wazir Singh Lakra S Gupta S P Biswas |
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| Institution: | 1. Directorate of Fisheries , Govt. of Assam, Meen Bhawan , Guwahati , Assam , India;2. National Bureau of Fish Genetic Resources , Canal Ring Road, Dilkusha, Lucknow , India;3. Central Institute of Fisheries Education , Mumbai , India;4. Assam University , Silchar , Cachar , India;5. Dibrugarh University , Dibrugarh , Assam , India |
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| Abstract: | The Pabdah catfish, Ompok pabda, was successfully spawned with the synthetic hormone Ovatide at two different doses (0.4 and 0.6 ml/kg of body weight of female). The latency period was 9–10 h at 0.6 ml compared to 10–12 h at 0.4 ml kg?1 of body weight. All the females spawned successfully. Average rate of fertilization (75.5 %) and hatching (60.5%) was higher with a dose of 0.6 ml kg?1, while lower fertilization (65.1%) and hatching rate (45%) were observed at 0.3 ml kg?1 of body weight. Fecundity ranged from 80–130 eggs gm?1 body weight of female. Eggs hatched between 12–14 h after spawning at a water temperature 28°–32°C. The mean egg diameter was 0.95 ± 0.15 mm. |
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| Keywords: | Live gene bank captive breeding Ompok pabda Ovatide spawning Northeastern India |
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