International Journal of Fisheries and Aquatic Studies
2017, Vol. 5, Issue 3, Part A
The embryonic development of Clarias gariepinus fertilized eggs subjected to different water temperature interval in an indoor hatchery in Jos
Author(s): JA Anpe, KV Absalom, LE Igoche, PC Ofojekwu and BS Audu
Abstract: Embryonic development of
Clarias gariepinus fertilized
eggs subjected to different water temperature in an indoor hatchery in Jos was investigated
. Gravid female and matured male
C. gariepinus (800g each) were selected for this experiment. The female was hormonally induced with ovaprim at 0.5mlkg
-1 and kept for 14 hours latency period at room temperature of 28.1
0C. The eggs were stripped and carefully mixed with the milt from sacrificed male for fertilization and incubated in aerated five different tanks (2 x 1 x 0.5m
3 at 10cm water depth) with different water temperatures (24
0C, 26
0C, 28
0C, 30
0C and 32
0C) in three replicates. The processes of hatching were restricted to a particular temperature according to each treatment with the aid of adjustable electric thermostat heater. Description of the egg developing stages at every 30 minutes interval were made by examining live specimens under a microscope and the process was repeated at the various stages until the eggs hatched into larvae while microphotographs of were taken by digital camera. Water quality parameters apart from the water temperature of source of water used for this study were not significantly different from each other. Embryonic development of
C. gariepinus fertilized
eggs in treatments 28
0C – 30
0C were not significantly different (
p˃0.05) from each other but they were significantly successful (
p<0.05) than other treatments (24
0C, 26
0C and 32
0C). Water temperature at 28
0C – 30
0C is highly recommended for successful embryonic development of
C. gariepinus fertilized
eggs into hatchlings.
Pages: 39-44 | 2969 Views 1710 DownloadsDownload Full Article: Click Here
How to cite this article:
JA Anpe, KV Absalom, LE Igoche, PC Ofojekwu, BS Audu. The embryonic development of Clarias gariepinus fertilized eggs subjected to different water temperature interval in an indoor hatchery in Jos. Int J Fish Aquat Stud 2017;5(3):39-44.