This 1-page diagram describes the production of the YY super male of Nile tilapia (Oreochromis niloticus). When the YY male is mated with normal females of Nile tilapia, the progeny should be all-males. The mass production of YY males has been described in the diagram. Note: although this diagram can be used independently, the diagram …
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Permanent link to this article: https://fishconsult.org/?p=11944
Oct 19 2014
Applications of genetics in aquaculture and fishery (principles – selection and hybridization – sex reversal – advanced breeding technologies)
This lecture was delivered on the 19th of October, 2014 in the Fish Culture Development training course that is annually organized by the Egyptian International Center for Agriculture (EICA). The lecture starts with principles of genetics and breeding focusing on those related to breeding programs. Qualitative and quantitative traits are covered. The effective breeding number …
Permanent link to this article: https://fishconsult.org/?p=11940
Oct 08 2014
Assessment of feed consumption and shrimp condition in earthen ponds in Vietnam – Video
Credit for the video: Ahmed Shaheen – Egypt Review: Abdel Rahman El Gamal (Founder of the website and video channel) This video was filmed in a shrimp pond in Vietnam. It seems from the aeration system that the pond is managed at intensive level. Because the high cost of shrimp feed, efforts are spent to minimize the …
Permanent link to this article: https://fishconsult.org/?p=11916
Oct 07 2014
Livelihoods and cage farming of Nile tilapia in Lake Volta (Ghana)
Credit:Patrick Appenteng (Ghana) The insert shows a fish farmer in a local canoe while feeding his caged fish in Lake Volta. The cages shown in the photo are located in Asuogyaman District of Ghana. As almost all cage activity in Ghana, Nile tilapia (Oreochromis niloticus) is the favorite species. This particular farm consists of 4 …
Permanent link to this article: https://fishconsult.org/?p=11911
Oct 06 2014
Blue-footed booby (Distribution – description – feeding – reproduction – predation)
Credit for the photo: Wilder Rodrìguez Arteaga (Peru) Review: Abdel Rahman El Gamal (Founder of the website) Introduction The blue-footed booby, Sula nebouxii is a tropical marine bird that belongs to the family Sulidae. The bird got its name “booby” from the Spanish “bobo”, or “bubi” that means stupid. This name was probably given by …
Permanent link to this article: https://fishconsult.org/?p=11907
Oct 03 2014
Pole method in the culture of mussels
Photo credit: Ahmed Shaheen (Egypt) Technical review: Abdel Rahman El Gamal (Founder of the website) This photo was taken in Vietnam. There are several mussel species in Vietnam especially green mussels (Perna viridis). As in many places in the world, the farming methods for oysters and mussels are well established. Being an off-bottom method in …
Permanent link to this article: https://fishconsult.org/?p=11903
Oct 02 2014
Marketing of dried fish in the market of Santa Rosa, Lambayeque (Perù)
Credit: Wilder Rodrìguez Arteaga (Peru) One of the photos shows dried specimens of three species that are namely guitara (Rhinobatos planiceps), raya (Myliobatis peruvianus), and doncella (Hemanthias signifier). In the right bottom corner, fresh doncella is displayed. The second photo shows only dried guitara. Dried fish is popular in Peru especially those for some marine fish. …
Permanent link to this article: https://fishconsult.org/?p=11897
Sep 28 2014
Before hatching embryos of flathead mullet (Mugil cephalus) – Video
Video credit: Ahmed Shaheen (Egypt) Technical review: Abdel Rahman El Gamal (Founder of the website and video channel) This 1-min video shows embryos of Mugil cephalus prior to hatching. The artificial reproduction of grey mullet has ben attempted and initiated in some Mediterranean countries whereas mullet is an important food fish. The video was filmed …
Permanent link to this article: https://fishconsult.org/?p=11888
Sep 27 2014
Research and culture of River catfish, Pangasius hypothalamus in the Philippines
Photo credit: Ahmed Hegazy (Egypt) Review: Abdel Rahman El Gamal (Founder of the website) River catfish (Pangasius spp.) is a large riverine catfish that is indigenous to the countries within the Mekong River Basin and hence the species is not native to the Philippines. Pangasius is considered an economically important food fish because of …
Permanent link to this article: https://fishconsult.org/?p=11883
Permanent link to this article: https://fishconsult.org/?p=11879