Genetic improvement of Nile tilapia (Oreochromis niloticus) with special reference to the work conducted by the WorldFish Center with the GIFT strain

R W Ponzoni; Nguyen Hong Nguyen; H L Khaw; A Hamzah; Khairul Rizal Abu Bakar; H Y Yee

doi:10.1111/j.1753-5131.2010.01041.x

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Genetic improvement of Nile tilapia (Oreochromis niloticus) with special reference to the work conducted by the WorldFish Center with the GIFT strain

Journal article

Peer reviewed

Genetic improvement of Nile tilapia (Oreochromis niloticus) with special reference to the work conducted by the WorldFish Center with the GIFT strain

R W Ponzoni, Nguyen Hong Nguyen, H L Khaw, A Hamzah, Khairul Rizal Abu Bakar and H Y Yee

Reviews in Aquaculture, Vol.3(1), pp.27-41

2011

DOI: https://doi.org/10.1111/j.1753-5131.2010.01041.x

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Abstract

genetic improvement

GIFT

growth rate

heritability

tilapia

We mainly (but not exclusively) draw on research and development work carried out by The WorldFish Center (WorldFish). We review in detail the current state of development of a selection program that has had a main focus on growth rate and body traits. We also present some new, unpublished, information. There is evidence of sustained gains of 10-15% per generation over more than six generations. To date, these gains have not been accompanied by any undesirable correlated response. However, the prospects of altering sexual dimorphism and the shape of the fish appear to be very limited. We also examine the issue of an appropriate environment for selection. Not surprisingly, experimental evidence on genotype by environment interactions suggests that this is more likely to be of importance when the environments in question are markedly dissimilar. We argue that no universal guidelines can be prescribed with regard to the need for more than one selection program to cope with different production environments, but rather, each case should be examined in its own right. Finally, we discuss traits likely to be candidates for inclusion in future, more elaborate, breeding objectives for Nile tilapia (Oreochromis niloticus), comment on selection methods that may be implemented in the future and conclude by stressing the need to maintain an effective population size in selection lines to ensure their sustainability over time.

Details

Title: Genetic improvement of Nile tilapia (Oreochromis niloticus) with special reference to the work conducted by the WorldFish Center with the GIFT strain
Authors: R W Ponzoni (Author) - Worldfish Centre, Malaysia
Nguyen Hong Nguyen (Author) - Worldfish Centre, Malaysia
H L Khaw (Author) - Worldfish Centre, Malaysia
A Hamzah (Author) - National Prawn Fry Production and Research Center, Malaysia
Khairul Rizal Abu Bakar (Author) - Worldfish Centre, Malaysia
H Y Yee (Author) - Worldfish Centre, Malaysia
Publication details: Reviews in Aquaculture, Vol.3(1), pp.27-41
Publisher: John Wiley & Sons Inc.
DOI: 10.1111/j.1753-5131.2010.01041.x
ISSN: 1753-5131
Organisation Unit: Centre for Bioinnovation; University of the Sunshine Coast, Queensland; School of Science and Engineering - Legacy; School of Science, Technology and Engineering
Language: English
Record Identifier: 99449749302621
Output Type: Journal article

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