International Journal of Fisheries and Aquatic Studies
2015, Vol. 3, Issue 1, Part A
The Efficacy of Synthetic and Non-Synthetic Hormones in the Induced Spawning of the African Catfish (Clarias gariepinus Burchell, 1822)Author(s):
The efficacy and economical utilization of the pituitary extract of Clarias gariepinus (CPE), Generic Ovaprim (GO) and Normal Saline Diluted Ovaprim (NSD) as designated hormones were evaluated. The extraction and dosage was discussed alongside the preliminary rearing of larvae in the hatchery gutters. Two female spawners were injected 0.4 ml/kg Ovaprim at 0% and 25% saline dilution in a single dose while one was injected 1.0 ml/kg C. gariepinus pituitary extract in a single dose. Relative fecundity ranged from 126.87-131.25. C. gariepinus injected with Ovaprim (GO and NSD) had the highest percentage fertilization (88.37 and 87.93%). Percentage hatchability was high and ranged from 62.50-75.00 % and showed similar patterns to percentage survival (55.20-68.66%). The latency period was 7-9hrs and the incubation period was 20 – 21hrs for all treatments. Water quality parameters were observed to be within recommended standards. The results showed that all designated hormones were effective and efficient and therefore conclude that the economical use of both available resources in the induced spawning of C. gariepinus is an added value to the function of profitability.Pages: 34-37 | 738 Views 17 DownloadsDownload Full Article:
How to cite this article:
BB Ngueku. The Efficacy of Synthetic and Non-Synthetic Hormones in the Induced Spawning of the African Catfish (Clarias gariepinus Burchell, 1822). International Journal of Fisheries and Aquatic Studies. 2015; 3(1): 34-37.