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Category: African catfish

These posts provides variety of information on African catfish, Clarias gariepinus. The artificial reproduction of the species is addressed including the sexing of broodstock, extraction of the pituitary gland, hormonal injection, ovulation, stripping, egg fertilization, and incubation. The nursing of catfish fry is covered. Also, the natural spawning is included. The farming systems of African catfish is covered.

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 …

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Permanent link to this article: http://fishconsult.org/?p=1187

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 …

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Permanent link to this article: http://fishconsult.org/?p=1178

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 …

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Permanent link to this article: http://fishconsult.org/?p=1171

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: http://fishconsult.org/?p=1161

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: http://fishconsult.org/?p=1155

Small-scale fish farming in Senegal (in French)

This project proposal addresses the small-scale fish farming in Senegal. The propsed location of the project is Tambacounda province. Farming and marketing of Nile tilapia and African catfish is the main objective of this proposed project. The rationality of this project in this specific location is based on the geographic distance from landing sites as …

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Permanent link to this article: http://fishconsult.org/?p=477

Hatchery establishment for African catfish fry production in mukono district, Uganda

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 …

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Permanent link to this article: http://fishconsult.org/?p=448

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