Jun 03 2012
Credit: Alain Murekambanze (Burundi) This photo was taken in Kavogero fish farming station, Kirundo province, Burundi just after the rehabilitation of the station as seen in the color of unfertilized pond water. There are 2 henhouses above fish ponds. The station has nine ponds whereas Nile tilapia (Oreochromis niloticus) and African catfish (Clarias gariepinus) are …
Permanent link to this article: https://fishconsult.org/?p=3678
May 18 2012
Credit: Alain Murekambanze (Burundi) The photo shows the Karoga Fish station, Gitega Province in Burundi. There are 10 earthen ponds in the station, in which Nile tilapia, Oreochromis niloticus is farmed. It is planned to introduce African catfish, Clarias gariepinus to the station. Station ponds are fertilized by pig manure which are farmed beside. The station belongs to the Nationl …
Permanent link to this article: https://fishconsult.org/?p=3548
May 18 2012
Credit: Alain Murekambanze (Burundi) This photo is for the Isale Fish station , located in bujumbura province, Burundi). The station contains 10 earthen ponds in total in which Nile tilapia, Oreochromis niloticus is farmed. Fertilization is done by chiken manure produced in chicken houses as seen in the photo. African catfish, Clarias gariepinus has been introduced in some …
Permanent link to this article: https://fishconsult.org/?p=3540
Apr 30 2012
This video shows a hatchery of African catfish, Clarias gariepinus. Artificial reproduction of African catfish is now carried out at commercial level in several hatcheries in Egypt. The video shows the incubators of catfish embryos whereas water is supplied from the bottom and drains from screened windows near the top of the incubators.
Permanent link to this article: https://fishconsult.org/?p=3448
Apr 14 2012
Credit: Glenda Velez Calabria (Colombia) and David Ramirez (Peru); Description: Abdel Rahman El Gamal This video shows how female African catfish (Clarias gariepinus) is identified based on the reddish coloration of the genital papilla. The video also shows the examination of the sexual maturation and spawning readiness of African catfish which is usually done through …
Permanent link to this article: https://fishconsult.org/?p=3354
Apr 14 2012
Credit: Glenda Velez Calabria (Colombia) and David Ramirez (Peru); Description: Abdel Rahman El Gamal This short video clearly shows the projection of the male genital papilla of African catfish (Clarias gariepinus). This video was taken during the month of November which is considered outside the natural spawning season of African catfish in Egypt.
Permanent link to this article: https://fishconsult.org/?p=3344
Apr 07 2012
Credit for the clip: Samuel Simon Zigizo (South Sudan) – Description: Abdel Rahman El Gamal This video shows the stripping of a female of African catfish, Clarias gariepinus. This practice takes place in artificial reproduction of the species and should be followed by artificial fertilization using testes taken from a sacrificed male. We are able to see …
Permanent link to this article: https://fishconsult.org/?p=3272
Mar 17 2012
Credit for the video: Emmanuel Ohene Marfo (Ghana) Description: Abdel Rahman El Gamal Such as the case with silurid fishes, it is almost impossible to hand strip the sperm from the male of African catfish, Clarias gariepinus. Therefore and as seen in this video, testes of a sacrificed male are used for the artificial fertilization of catfish eggs. Testes …
Permanent link to this article: https://fishconsult.org/?p=3023
Mar 15 2012
The pituitary gland extract is used in inducing the 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. From practical views, extracting the …
Permanent link to this article: https://fishconsult.org/?p=2998
Mar 13 2012
Credit: Anna Jamil (Indonesia) This photo shows a hatchery facility for African catfish (Clarias gariepinus) and others Clarias species. Usually is such facility, natural spawning is practiced. In general, the growing aquaculture activities of African catfish (hatching and farming) reflect the high consumption demand on these species in Indonesia. Many restaurants offer catfish in their …
Permanent link to this article: https://fishconsult.org/?p=2949
