Citation
Hooi Ling Khaw, . and Ponzoni Raul W., . and Hoong Yip Yee, . and Azhar Hamzah, . and Nguyen Hong Nguyen, . and Siti Azizah Mohd Nor, . Performance of the Genetically Improved Farmed Tilapia (GIFT) strain over ten generations of selection in Malaysia. pp. 411-429.
Abstract
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 weight there still exists an abundant genetic variation thus providing the scope for further enhancement in performance of this population.
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Abstract
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 weight there still exists an abundant genetic variation thus providing the scope for further enhancement in performance of this population.
Additional Metadata
| Item Type: | Article |
|---|---|
| AGROVOC Term: | Genetic variation |
| AGROVOC Term: | Genetic engineering |
| AGROVOC Term: | Breeding |
| AGROVOC Term: | Tilapia |
| AGROVOC Term: | Selection |
| AGROVOC Term: | Best linear unbiased predictor |
| AGROVOC Term: | Heritability |
| AGROVOC Term: | Freshwater fishes |
| AGROVOC Term: | Aquaculture |
| AGROVOC Term: | Progeny testing |
| Geographical Term: | Malaysia |
| Depositing User: | Ms. Suzila Mohamad Kasim |
| Last Modified: | 26 Apr 2025 03:14 |
| URI: | http://webagris.upm.edu.my/id/eprint/21364 |
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