Oct 17 2013
Credit: Elsadig Arbab (Sudan) The three photos show the locally-made feeding facilities used in an African catfish farm in Sudan. The facilities include a feed manufacturing unit capable to produce 1 ton of feed/day and demand feeders of 30 kg/each capacity. The third photo shows the produced feed. The total area of this farm is 31,500 …
Permanent link to this article: https://fishconsult.org/?p=9577
Oct 15 2013
Credit: Elsadig Arbab (Sudan) The two photos show the culture of African catfish, Clarias garipinus that represents the main cultured species in a fish farm in Sudan. The stocking rate of fingerlings is 7 pieces/m2 whereas fingerlings are either collected from the wild or from hatchery-produced fry through induced breeding. The average initial weight upon stocking …
Permanent link to this article: https://fishconsult.org/?p=9556
Nov 06 2011
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
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
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
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
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
Oct 18 2011
This project has been developed by a team of trainees who participated during 2007 in the Warm Water Fish Production training course. This course is annually hosted by the Egyptian International Centre for Agriculture (EICA) in partnership with Japan International Cooperation Agency (JICA). The project addresses the establishment of a hatchery for African catfish (Clarias gariepinus) in the …
Permanent link to this article: https://fishconsult.org/?p=567
Sep 23 2011
The current project targets the production of African catfish fingerlings starting by 850,000 and increasing in subsequent years. The project which will be located in Mukono district (Uganda) has identified the key physical requirements of land and equipment as well as human resources. Marketing strategy as planned ensures a continous supply of catfish fingerlings throughout …
Permanent link to this article: https://fishconsult.org/?p=448
