African Journal of
Agricultural Research

  • Abbreviation: Afr. J. Agric. Res.
  • Language: English
  • ISSN: 1991-637X
  • DOI: 10.5897/AJAR
  • Start Year: 2006
  • Published Articles: 6574

Full Length Research Paper

Production of salinity tolerant tilapia through interspecific hybridization between Nile tilapia (Oreochromis niloticus) and red tilapia (Oreochromis sp.)

Samy Yehya El-Zaeem1,4*,  Mohamed Morsi M. Ahmed2,3, Mohamed El-Sayed Salama4 and Dalia Mohamed F. Darwesh4    
1DNA Research Chair, Zoology Department, College of Sciences, P. O. Box 2455, King Saud University, Riyadh 11451, Saudi Arabia. 2Biological Sciences Department, Faculty of Sciences, P. O. Box 80203, King Abdulaziz University, Jeddah 21589, Saudi Arabia. 3Nucleic Acids Research Department, Genetic Engineering and Biotechnology Research Institute (GEBRI), City for Scientific Research and Technology Applications, Alexandria, Egypt. 4Animal and Fish Production Department, Faculty of Agriculture (Saba-Bacha), Alexandria University, Alexandria, Egypt.     
Email: [email protected], [email protected]

  •  Accepted: 10 May 2012
  •  Published: 19 May 2012

Abstract

The present work aims to produce a salinity tolerant fish through interspecific hybridization of Nile tilapia,Oreochromis niloticus × Red tilapia, Oreochromis sp. Growth performance, proximate body composition and feed utilization of the offspring produced of Nile tilapia, red tilapia and their diallelic interspecific hybridization under different salinity levels were evaluated and heterosis values were estimated for weight gain and specific growth rate. The results of most of the productive performance traits and heterosis values indicated a maternal effect and suggest that the hybrid of (♀ Red tilapia × â™‚ Nile tilapia) can be produced and reared at different salinity levels up to 32 ppt, as economic value compared to purebreds and reciprocal hybrid.

 

Key words: Salinity tolerance, Nile tilapia, red tilapia, productive performance, heterosis, interspecific hybridization.