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 …
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Permanent link to this article: https://fishconsult.org/?p=3023
Mar 15 2012
Locating and extracting the pituitary gland of African catfish, Clarias gariepinus (Video)
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 11 2012
Checking the spawning of Nile tilapia (Oreochromis niloticus) in hapa system in Egypt (Video)
This video shows how the 2-person crew check the spawning of Nile tilapia (Oreochromis niloticus) in open hatchery system using hapas in earthen ponds. The crew are working at both sides of the spawning hapa. The gradually crowd tilapia broodstock to facilitate their handling. The intervals between checking depend on water temperature and target product whether fry …
Permanent link to this article: https://fishconsult.org/?p=2906
Mar 11 2012
Post harvest practices of farmed tilapia in Egypt – Video
Credit for the clip: Samuel Simon Zigizo (South Sudan) Description: Abdel Rahman El Gamal As the awareness on fish quality and safety increases among fish farmers in Egypt, post harvest procedures have significantly developed. The video shows tilapia how tilapia harvest is transferred in netting scoop nets and placed temporary into a tank whereas crushed …
Permanent link to this article: https://fishconsult.org/?p=2900
Mar 11 2012
Counting and transporting Pangasius fingerlings in India (Video)
Credit for the clip: Indian farmers and G. Venkata Raju (India) – Description: Abdel Rahman El Gamal This video shows the procedure of counting, loading and transporting of Pangasius fingerlings in India. What could be distilled from the video is the large number of counters (males and females) which will ultimately lead to shorten the …
Permanent link to this article: https://fishconsult.org/?p=2894
Mar 11 2012
Harvest of Indian carps (India) – Video
Credit: Indian fish farmers and G. Venkata Raju (India) Labeo rohita (Rohu) and Catla catla (Boche) are two popular fishes among the Indian Major Carps in fish farming practices. The production ranges between 15 – 20 ton/ha at the places where the carp farming is going on in commercial way. The farmers use conventional feeds …
Permanent link to this article: https://fishconsult.org/?p=2887
Mar 11 2012
Fish Packing and Transport in India (Video)
Credit: Indian fish farmers and G. Venkata Raju (India) Andhra Pradesh is one of the states of India which supply large quantities of food fish (carp) in other states of the country and neighbouring countries like Nepal, Bhutan and Bangladesh. For that purpose, the fish harvested has to be transported (by road) to the distant …
Permanent link to this article: https://fishconsult.org/?p=2881
Mar 11 2012
Harvest of catfish (Pangasius) in India (Video)
Credit: Indian fish farmers and G. Venkata Raju (India) Catfish (Pangasius) has been introduced a few years back as an alternative species in the brackish water shrimp ponds due to its survival and fast growing nature in the hard pond environmental conditions. Fry level seed has been brought from Bangladesh and successfully …
Permanent link to this article: https://fishconsult.org/?p=2873
Mar 10 2012
Desert aquaculture for Nile tilapia, Oreochromis niloticus integrated with agricultural crops in Egypt- Part 3- water quality management
Credit: Mohamed El Gazaar (Egypt) Supply of water, aeration and removal of solid wastes As shown in the photo the supply of water is done at an angle of 45o. Placing the aerators at the same angle helps to circulate and move tank water in one direction which will lead to better oxygenation of tank …
Permanent link to this article: https://fishconsult.org/?p=2851
Mar 10 2012
Desert aquaculture for Nile tilapia, Oreochromis niloticus integrated with agricultural crops in Egypt Part 2- Construction
Credit: Mohamed El Gazaar (Egypt) The first photo shows two types of tanks during the construction phase while the second photo shows the concrete base of the fattening circular tanks. Intermediate tanks: The 150-m3 rectangular tanks are used for the production of Nile tilapia juveniles of an average weight of 50-g which are required for …
Permanent link to this article: https://fishconsult.org/?p=2846