Responsibility
The rise of tilapia farming in Ghana
Natural factors, institutional support and a big appetite for fish have all contributed to the growth of aquaculture in Ghana, where about 80 percent of all farmed fish is tilapia.
Responsibility
A farm project in Namibia established at a lake formed by an old tin mine incorporates a hatchery facility and grow-out cages to raise tilapia. It utilizes an existing water resource to improve food security and ensures the participation of disadvantaged local communities.
Responsibility
Natural factors, institutional support and a big appetite for fish have all contributed to the growth of aquaculture in Ghana, where about 80 percent of all farmed fish is tilapia.
Health & Welfare
In a commercial field trial, Nile tilapia were distributed in net cages and fed diets containing increasing threonine:lysine ratios.
Health & Welfare
In a study, tilapia were fed fish oil- or vegetable oil-based diets for five months, then switched to a fish oil finishing diet for three months. Growth and feeding efficiencies were not significantly compromised.
Health & Welfare
Although not universally practiced, the potential benefits of selective breeding in aquaculture outweigh all other options for improving animal performance. The genetic potential of aquaculture animals is plastic and can be improved over a relatively short timeframe.
Responsibility
Fish supply is a food security priority in Bangladesh. There is potential for the culture of non-native fish species to meet its growing population's needs.
Intelligence
Overall costs for hand filleting tilapia relate primarily to labor and the throughput of fish to be filleted. Labor is the largest expense. Salaries vary, and cutters’ yield efficiencies increase with practice.
Intelligence
An analysis of tilapia processing in which the cost of the fish was not included found that automated cutting of fillets was significantly less expensive than hand cutting.
Aquafeeds
As more-intensive methods for tilapia and catfish culture become popular in Namibia, practical diets need to be formulated using local ingredients such as maize, millet, wheat bran and fishmeal to reduce feed costs.
Intelligence
A survey of major market sectors to identify further market potential for fresh tilapia found that both big-box retailers and traditional grocery stores offered little room for achieving premium prices for tilapia fillet products.
Aquafeeds
Herbivorous or omnivorous fish like tilapia can be fed lower-energy and lower-protein diets because they consume higher amounts of feed than carnivores.
Health & Welfare
Sustainable development of China's tilapia industry depends largely on the market prices of products, disease control, climate and seed availability.
Health & Welfare
Salinity tolerance in tilapia can be improved by optimizing acclimation protocols, adding salt to the diet or hybridization between fast-growing and salt-tolerant species.
Health & Welfare
With a hatchery system that involves collection of eggs and larvae, and hormonal sex reversal, it is possible to produce billions of monosex tilapia (all-male) fry to satisfy demand and accelerate aquaculture development.
Responsibility
The wide distribution and ongoing improvement of GIFT tilapia in Sri Lanka is raising living standards and employment for women in rural areas.
Health & Welfare
China’s expansive tilapia culture industry is based on exotic species introduced continuously since 1956. Technical advances for improving the limited germplasm are expected to aid the industry.