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IJFS 2013, 12 Back to browse issues page
Production of genetically male tilapia through interspecific hybridization between Oreochromis niloticus and O. aureus
S.Y El-Zaeem * , G.M Salam
, selzaeem@yahoo.com
Abstract:   (7526 Views)
This study was conducted to produce a high percentage of genetically male tilapia through interspecific hybridization between Nile tilapia, Oreochromis niloticus and Blue tilapia, O. aureus and evaluate sex ratio, productive performance and heterosis of the progeny produced. The results revealed that sex ratios of the progenies of (♀ O. aureus x ♂ O. niloticus) and (♀ O. niloticus x ♂ O. aureus) were 4.28: 1.00 and 3.59: 1.00 and differ (P<0.05 df =1) significantly from the expected sex ratios of 3.00: 1.00 and 1.00: 0.00, respectively. In addition, the productive performance traits of (♀ O. aureus x ♂ O. niloticus) had significant (P≤0.05) superiority in most of these traits. Moreover, although both hybrids displayed a positive or best heterosis for daily gain, SGR%/day, FCR and PER, the hybrid of (♀ O. aureus x ♂ O. niloticus) showed the highest or best heterosis.
Keywords: Genetically male, interspecific hybridization, Nile tilapia, Blue tilapia, productive performance, heterosis
Full-Text [PDF 127 kb]   (2201 Downloads)    
Type of Study: Orginal research papers | Subject: Genetics
Received: 2014/01/27 | Accepted: 2014/01/27 | Published: 2014/01/27
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El-Zaeem S, Salam G. Production of genetically male tilapia through interspecific hybridization between Oreochromis niloticus and O. aureus. IJFS. 2013; 12 (4) :802-812
URL: http://jifro.ir/article-1-1340-en.html


Volume 12, Issue 4 (10-2013) Back to browse issues page
مجله علوم شیلاتی ایران Iranian Journal of Fisheries Sciences
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