Tag Archive: 17-alpha-methyltestosterone

Jan 27 2015

Hormonal sex reversal of tilapia fry (practice and contradicting opinions) – Video

After a short introduction of tilapia in aquaculture, this 17-min video focuses on the production of all-male tilapia through the sex reversal practices using male hormone. The logic sequence of the sex reversal process has been maintained to large extent starting by the sexual differentiation in tilapia then determining the appropriate age and/size for successful …

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Permanent link to this article: http://fishconsult.org/?p=12261

Nov 19 2014

Production of all-male Nile tilapia fry in a commercial facility in Pakistan

Credit: Muhammad Shahid Iqbal (Tawakkal)- Pakistan The masculinization of the fry of Nile tilapia (Oreochromis niloticus) –as shown in the photo- is done in 5m2-hapas placed in earthen ponds. In order to judge the age of fry, only fry hatched from collected eggs are used in the sex-reversal process in which the male hormone 17 …

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Permanent link to this article: http://fishconsult.org/?p=12078

Oct 15 2013

Production of all-male Nile tilapia (Oreochromis niloticus) through sex reversal in Guatemala

Credit: Manuel Cano Alfaro (Guatemala) The first photo shows people collecting the swim-up fry of Nile tilapia (Oreochromis niloticus) from the spawning tanks. Tilapia broodstock are stocked at the ratio of four females for each male. The collected fry are passed to the sex reversal unit which is shown in the second photo. The sex reversal …

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Permanent link to this article: http://fishconsult.org/?p=9549