Performance of the Genetically Improved Farmed Tilapia (GIFT) Strain over Ten Generations of Selection in Malaysia

Azhar Hamzah; Raul W Ponzoni; Nguyen Hong Nguyen; Hooi Ling Khaw; Hoong Yip Yee; Siti Azizah Mohd Nor

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Performance of the Genetically Improved Farmed Tilapia (GIFT) Strain over Ten Generations of Selection in Malaysia

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Performance of the Genetically Improved Farmed Tilapia (GIFT) Strain over Ten Generations of Selection in Malaysia

Azhar Hamzah, Raul W Ponzoni, Nguyen Hong Nguyen, Hooi Ling Khaw, Hoong Yip Yee and Siti Azizah Mohd Nor

Pertanika Journal of Tropical Agricultural Science, Vol.37(4), pp.411-429

2014

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http://www.pertanika.upm.edu.my/Pertanika%20PAPERS/JTAS%20Vol.%2037%20(4)%20Nov.%202014/02%20Page%20411-430%20(JTAS%200502-2013).pdfView

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Abstract

Agricultural and Veterinary Sciences

Nile tilapia

GIFT strain

selective breeding

BLUP

heritability

selection response

A selective breeding programme of Nile tilapia (Oreochromis niloticus) based on a fully pedigreed population of the GIFT (Genetically Improved Farmed Tilapia) strain has been carried out using Best Linear Unbiased Prediction (BLUP) method for genetic evaluation and selection. Two lines were created from the 2002 progeny; one selected based on high breeding values (selection line) and another one was selected for average breeding values (control line) for live weight (LW). The estimate of heritability for live weight at harvest was 0.24±0.031, indicating that there is still abundant genetic variation and scope for further genetic improvement. The accumulated response was 107% in the latest generation of 2011, averaging 11.9% per generation. It can be concluded that although the selection programme in the nucleus of the GIFT strain in Malaysia resulted in significant improvement in harvest eight, there still exists an abundant genetic variation thus providing the scope for further enhancement in performance of this population.

Details

Title: Performance of the Genetically Improved Farmed Tilapia (GIFT) Strain over Ten Generations of Selection in Malaysia
Authors: Azhar Hamzah (Author) - Universiti Sains Malaysia, Malaysia
Raul W Ponzoni (Author) - World Fish Centre, Malaysia
Nguyen Hong Nguyen (Author) - World Fish Centre, Malaysia
Hooi Ling Khaw (Author) - World Fish Centre, Malaysia
Hoong Yip Yee (Author)
Siti Azizah Mohd Nor (Author) - Universiti Sains Malaysia, Malaysia
Publication details: Pertanika Journal of Tropical Agricultural Science, Vol.37(4), pp.411-429
Publisher: Universiti Putra Malaysia
Date published: 2014
ISSN: 1511-3701
Organisation Unit: School of Science and Engineering - Legacy; University of the Sunshine Coast, Queensland; School of Science, Technology and Engineering; Centre for Bioinnovation
Language: English
Record Identifier: 99448959302621
Output Type: Journal article

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