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Hydrobiologia

, 78:157 | Cite as

Induced sex reversal in Tilapia nilotica (Cichlidae) with methyl testosterone

  • Mark Owusu-Frimpong
  • Baldev Nijjhar
Article

Abstract

Gonadally undifferentiated Tilapia nilotica fry were fed with methyl testosterone at the dosage of 50 mg/kg of dry diet. The fry used in the investigation belonged to two age groups with a mean total length of 10 mm and 13.5 mm. Treatment lasted for a minimum of four weeks and a maximum of six weeks. 100% males were obtained in all the various groups under androgen treatment.

Keywords

Induced sex reversal methyl testosterone Tilapia nilotica Cichlidae 

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Copyright information

© Dr. W. Junk b.v. Publishers 1981

Authors and Affiliations

  • Mark Owusu-Frimpong
    • 1
  • Baldev Nijjhar
    • 2
  1. 1.Building and Road Research InstituteGhanaSouth Africa
  2. 2.Department of Biological SciencesUniversity of Science and TechnologyGhanaSouth Africa

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