This project proposal has been developed by a working group who participated in Fish Culture Development training course in 2011 under the supervision of Dr. Abdel Rahman El Gamal. The main focus of this project proposal is cage farming of Nile tilapia (Oreochromis niloticus), and African catfish (Clarias sp.) in Lake Chad. The document included the …
Tag: African catfish
Permanent link to this article: https://fishconsult.org/?p=2866
Feb 05 2012
A Demonstration fish farm in Manibe (Uganda)
Credit: Enima Chris (Uganda) This photo shows grow out fish ponds located in Manibe sub country. The farm belongs to a fish farmer (Mr. Obedmoth Alfred) of Manibe. The farm is being used as demonstration site for fish farmers. There are a total of four grow-out earthen ponds of 25×30 m2 each. Ponds are stocked …
Permanent link to this article: https://fishconsult.org/?p=2376
Jan 07 2012
Establishment of commercial catfish and tilapia farm in Karu, Nasarawa (Nigeria)
This project proposal has been developed by a team who participated in Fish Culture Development training course in 2011. Developers recommended Kuchikau, Karu, (Nasarawa) to be the place of this project. The project proposal reviewed the status of fish production and consumption in Nigeria concluding the need for more aquaculture development in Nigeria. The team has chosen African …
Permanent link to this article: https://fishconsult.org/?p=2225
Dec 26 2011
Artificial spawnining of African catfish, Clarias gariepinus (hormonal injection) – Video)
The video shows the injection of an African catfish (Clarias gariepinus) female. You may notice the small-medium size of female broodstock, the place of injection (dorsal part) and covering fish eyes as a means of calming. Anesthesia may be required especially in larger broodstock. Note: the credit of these video clips goes to colleagues who …
Permanent link to this article: https://fishconsult.org/?p=2154
Nov 06 2011
Ovulation of African catfish (Clarias gariepinus) female
The photo shows egg stripping which is a phase of the induced reproduction of African catfish (Clarias gariepinus). This female has been induced for spawning using the pituitary gland extract. The photo shows the egg stripping after the ovulation. Note how eggs are free flowing without clumps or blood. Eggs are obtained through stripping using soft …
Permanent link to this article: https://fishconsult.org/?p=1195
Nov 06 2011
Induced reproduction of African catfish (Clarias gariepinus) and sacrificing the male
Unlike many fish species, the sperm can only be obtained by sacrificing a male of African catfish (Clarias gariepinus). Testis is dissected and cut into small pieces whereas the milt used in egg fertilization will be obtained through pressing pieces of the testis out. Note: We decided not to watermark the photos in order not to upset …
Permanent link to this article: https://fishconsult.org/?p=1187
Nov 05 2011
Spawning readiness of African catfish (Clarias gariepinus) female
Determining the spawning readiness of African catfish (Clarias gariepinus) female is assessed based on the softness of female abdomen as shown one photo. Female ovulation could be judged based on the release of few eggs under slight pressure. Females are watched for ovulation and should be stripped and eggs fertilized. Note: We decided not to watermark the photos …
Permanent link to this article: https://fishconsult.org/?p=1178
Nov 05 2011
Extraction of the pituitary gland of African catfish (Clarias gariepinus)
Pituitary gland extract is used in induced reproduction of African catfish (Clarias gariepinus). In order for the pituitary extract to be effective, donor fish should be sexually mature whether male or female. Also, the extraction of pituitary gland is preferred to be close to or within the spawning season. Note: We decided not to watermark …
Permanent link to this article: https://fishconsult.org/?p=1171
Nov 05 2011
Sex identification of African catfish (Clarias gariepinus) male
This photo shows clearly the projection of the male genital papilla of African catfish (Clarias gariepinus)
Permanent link to this article: https://fishconsult.org/?p=1161
Nov 05 2011
Sex identification of African catfish (Clarias gariepinus) female
The photo shows how female African catfish (Clarias gariepinus) is identified based on the genital papilla (watch the reddish color of the papilla).
Permanent link to this article: https://fishconsult.org/?p=1155