The Genetic Improvement of Farmed Tilapias Project: Impact and Lessons Learned

Acosta, Belen O.; Gupta, Modadugu V.

doi:10.1007/978-90-481-3087-0_8

Cited by 19 publications

(23 citation statements)

References 10 publications

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“…The lessons from the GIFT experience and the recommendations thereof, which have been adequately dealt with in the ADB-sponsored study specifically designed to assess the impact of GIFT (ADB 2005) and in Acosta and Gupta (2009), are outlined in brief.…”

Section: Lessons Learned From Gift Experiencementioning

confidence: 99%

Use and exchange of genetic resources of Nile tilapia (Oreochromis niloticus)

Ambekar

Hulata

2009

Reviews in Aquaculture

111

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The worldwide use of Nile tilapia (Oreochromis niloticus Linnaeus, 1758) in aquaculture represents a somewhat unique scenario. The natural distributions and global genetic resources of tilapias are in Africa, yet the main centers of utilization for aquaculture are primarily in Asia. Within a few decades, Nile tilapia graduated from being an ‘orphan commodity’ (i.e. of interest to only resource‐poor fish farmers) to a globally traded commodity. Most aquaculture production of Nile tilapia in Asia and elsewhere has relied on a narrow genetic base. The natural genetic resources have not yet been fully documented and tapped for use in aquaculture, and many natural populations are under severe threat of irreversible change or loss. Although genetic improvement is now well underway, an important question is how the wealth of Nile tilapia wild genetic resources shall be used for the benefit of a wide range of users, at present outside Africa. This review focuses on documenting the status of Nile tilapia genetic resources (including the potential threats), providing a case for their conservation and for the judicious utilization of genetic diversity for the benefit of all stakeholders; and on analysis of the lessons learnt from a major Nile tilapia genetic improvement initiative, the genetic improvement of farmed tilapia (GIFT) project. Information about other genetic improvement efforts by means of hybridization, sex reversal and YY male technology is also presented.

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Section: Lessons Learned From Gift Experiencementioning

confidence: 99%

Use and exchange of genetic resources of Nile tilapia (Oreochromis niloticus)

Ambekar

Hulata

2009

Reviews in Aquaculture

111

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“…In addition, with its firm white flesh, mild taste, high protein and low fat and calorie content, tilapia is considered an inexpensive and suitable substitute for wild whitefish stocks such as cod, which are frequently reported as being overfished. The Food and Agriculture Organization (FAO) has estimated that over 52% of whitefish stocks have been fully exploited 1–3…”

Section: Introductionmentioning

confidence: 99%

Modeling traceability information and functionality requirement in export‐oriented tilapia chain

Zhang

Feng

et al. 2011

J Sci Food Agric

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The results show that the traceability data consist of four categories that must be recorded by each link in the chain. The functionality requirement is classified into four categories from the fundamental information record to decisive quality control; the top three barriers to the traceability system adoption are: high costs of implementing the system, lack of experienced and professional staff; and low level of government involvement and support.

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“…GenoMar also has supplied the GST strain to partner hatcheries in Zambia and Angola, and by 2008 it was carrying out a feasibility study on setting up another partner hatchery in Uganda [36]. In Ghana, the Aquaculture Research and Development Center (ARDEC) took delivery of the GIFT strain officially in 2012, with the expressed objective of comparing its growth performance with the locally improved Akosombo strain (Dr. Joseph Padi, ARDEC, Water Research Institute, Ghana, personal communication).…”

Section: Sharing the Benefits Arising From The Utilization Of Geneticmentioning

confidence: 99%

“…Such a country also must display compliance with the Convention on Biological Diversity (CBD), an international treaty, while at the same time addressing the development objective it intends to achieve with the GIFT introduction [36,42]. The guiding principle for this new policy was that the genetic risks of introducing the actual GIFT strain to Africa was comparable to those associated with the genetic improvement of indigenous O. niloticus strains in Africa [42].…”

Section: Dissemination Of Gift/gst Strains In Africamentioning

confidence: 99%

“…This dissemination allowed detailed evaluation of the genetic and socioeconomic performance and environmental impacts of this strain prior to more widespread commercial production and dissemination [31]. The dissemination was carried out according to standard quarantine procedures developed as part of the GIFT project [36].…”

Section: The Genetic Improvement Of Farmed Tilapia (Gift) Projectmentioning

confidence: 99%

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Genetically-Improved Tilapia Strains in Africa: Potential Benefits and Negative Impacts

2014

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Two genetically improved tilapia strains (GIFT and Akosombo) have been created with Oreochromis niloticus (Nile tilapia), which is native to Africa. In particular, GIFT has been shown to be significantly superior to local African tilapia strains in terms of growth rate. While development economists see the potential for food security and poverty reduction in Africa from culture of these new strains of tilapia, conservationists are wary of potential ecological and genetic impacts on receiving ecosystems and native stocks of tilapia. This study reviews the history of the GIFT technology, and identifies potential environmental and genetic risks of improved and farmed strains and tilapia in general. We also estimate the potential economic gains from the introduction of genetically improved strains in Africa, using Ghana as a case country. Employing a combination of the Economic-Surplus model and Monte Carlo simulation, we found the mean net present value (NPV) of the introduction of the GIFT strain in Ghana to be approximately 1% of the country's gross domestic product. Sensitivity analysis indicated that the difference in growth or yield between the GIFT and locally-available strains has the largest effect on mean NPV. We conclude that improvements in management practices and infrastructure could increase the yield and profitability of the local strains even if genetically-improved strains are not introduced. These improvements also will ensure the realization of the full potential of introduced strains. OPEN ACCESS

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The Genetic Improvement of Farmed Tilapias Project: Impact and Lessons Learned

Cited by 19 publications

References 10 publications

Use and exchange of genetic resources of Nile tilapia (Oreochromis niloticus)

Use and exchange of genetic resources of Nile tilapia (Oreochromis niloticus)

Modeling traceability information and functionality requirement in export‐oriented tilapia chain

Genetically-Improved Tilapia Strains in Africa: Potential Benefits and Negative Impacts

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