Improving employment and incomes through development of Egypt’s aquaculture sector (IEIDEAS)

The IEIDEAS project, funded by the Swiss Agency for Development and Cooperation and managed by WorldFish and CARE in collaboration with the Ministry of Agriculture and Land Reclamation, has focused on the development of the Egyptian aquaculture value chain. In 2011, SDC and WorldFish conducted a value chain assessment.

Impacts of climate change on the agricultural and aquatic systems and natural resources within CGIAR's mandate

The document attempts to distil what is currently known about the likely impacts of climate change on the commodities and natural resources that comprise the mandate of CGIAR and its 15 Centres. It was designed as one background document for a review carried out by the High Level Panel of Experts on Food Security and Nutrition (HLPE) at the behest of the UN Committee on World Food Security (CFS) on what is known about the likely effects of climate change on food security and nutrition, with a focus on the most affected and vulnerable regions and populations.

ICLARM and South-south technology transfer: Philippine aquaculture technology and Indonesia Part I.

A historical account is given of the discovery of Tilapia mossambica and its culture in Indonesia and the resulting success in Java of this species in rural development programs. Consequent introduction of this species to the Philippines and development of the tilapia culture industry is described, comparing it with development of the industry in Indonesia.

Genetically Improved Farmed Tilapia (GIFT)

Genetic improvement through selective breeding has been used for millennia on crops and livestock, but up until the 1980s, little had been done to utilize this process for farmed fish. In response to the inadequate supply of tilapia seed and the deteriorating performance of the fish in many aquaculture systems in Asia, WorldFish and partners began the Genetic Improvement of Farmed Tilapia (GIFT) project to develop a faster-growing strain of Nile tilapia (Oreochromis niloticus) that was suitable for both small-scale and commercial aquaculture.

Genetic improvement of Israeli blue (Jordan) tilapia, Oreochromis aureus (Steindachner), through selective breeding for harvest weight

Genetic parameters and selection responses were obtained for harvest body weight of blue tilapia (Oreochromis aureus) from data collected over three generations in a selected population. A total of 18 194 records representing 186 sires and 201 dams were used in the analysis. Within generation heritability estimates for harvest body weight ranged from 0.18 to 0.58. When data from more than one generation were included in the analysis, heritability estimates became more stable (0.33–0.40) and it was 0.33 when all data were included in the analysis.

Genetic considerations on acquisition and maintenance of reference populations of tilapia

The maintenance of reference populations of Tilapia is discussed, examining genetic considerations to be taken into account to conserve the gene pool to prevent genetic drift and prevent detrimental levels of inbreeding. The importance of knowledge of the proper effective breeding number and its use in management of the reference population is described.


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