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Abstract
The study was conducted in the hatchery complex of Bangladesh Fisheries Research Institute, Brackishwater Station, Paikgacha, Khulna, Bangladesh. The body weights of collected male fishes were ranged from 42-50 g and that of female fishes were from 50-58 g. The fish were divided into different groups, which were administered with different hormones: Pituitary Gland (3, 4 & 5 Mg of dried PG/Kg of both male and female fish), Human Chorionic Gonadotropin (2500, 3000 & 3500 IU of HCG/Kg of both male and female fish), Synthetic gonadotropin releasing hormone analogue (25, 30 & 35 Microgram of S-GnRHa/Kg), Only the group treated with S-GnRHa hormone exhibited spawning activity. Only 25, 30, 35 Microgram of S-GnRHaa (Ovupin)/Kg of dose injected fish showed spawning activity. In 25 Microgram/Kg S-GnRHa hormone dose, the spawning period, fertility rate, hatching period and hatching rate of green back mullet were 33-35 hrs, 72%, 21-24 hrs and 70%. In 30 Microgram/Kg S-GnRHa hormone dose, the spawning period, fertility rate, hatching period and hatching rate green back mullet were 33-35 hrs, 83%, 21-24 hrs, 81%. In 35 Microgram/Kg S-GnRHaa hormone dose, the spawning period, fertility rate, hatching period and hatching rate of green back mullet were 32-34 hrs, 80%, 20-22 hrs, 76%. All dose of S-GnRHa here shown more or less similar result. The present study might be useful for quality seed production on parse (Chelon subviridis) during induced breeding in hatcheries.
Item Type: | Article |
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Subjects: | Euro Archives > Biological Science |
Depositing User: | Managing Editor |
Date Deposited: | 29 Sep 2023 12:18 |
Last Modified: | 29 Sep 2023 12:18 |
URI: | http://publish7promo.com/id/eprint/3108 |