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GIFT "Genetically Improved Farmed Tilapia" All Male Tilapia Fingerlings with Greater Yield and Uniformity

Greater yield and uniformity in tilapia farming

Mono-sex tilapia farming is a bit more complicated but it's worth it. It allows for mostly male tilapia to be grown, sometimes up to 98% male. This is done using methods like picking out males and females by hand, using hormones, or natural methods. Using specially bred tilapia (GIFT) is best for commercial farming. Using hormones can change most fish from female to male, usually about 98% of them. Another method uses changes in temperature after the fish hatch, turning about 86% of them into males. The natural method gives you all-natural males. It's important to know that with hormone-treated fish, some might look like males but genetically they're still females.


This technology is TAAT1 validated.


Scaling readiness: idea maturity 8/9; level of use 8/9

Cost: $$$ 100 USD

Stocking rate of 1,000 fish per cubic meter of water

ROI: $$$ 30 %

Harvest volume increased


Patent granted


  • Mixed-sex tilapia culturing often leads to lower yields and non-uniform harvests.
  • Manual sex selection at the beginning of the production cycle is time-consuming and results in discarding nearly half of the stock.
  • Hormonal alteration of fry involves the application of α-Methyltestosterone, which may pose concerns regarding its use in feed and its impact on fish health and the environment.
  • Temperature manipulation to convert the sex of fry may result in a significant portion of the fry not surviving the process.
  • Hormone sex-reversed fish may exhibit phenotypically male characteristics but genetically remain female in approximately 50% of cases, potentially causing issues in breeding programs and overall stock management.


  • Utilizing improved lines of tilapia breeds with desirable traits for growth rate, feed conversion, size, and hardiness can enhance the effectiveness of manual selection, hormonal treatment, YY male technology, and GIFT.
  • Crossbreeding strategies, such as mating male Blue or Wami tilapia with female Nile tilapia, can produce 100% male offspring, improving mono-sex tilapia production efficiency.
  • Careful management of brood stock selection in hatcheries, focusing on younger brooders free from wounds and parasites, ensures high-quality and abundant fish seed production for successful mono-sex tilapia farming.
  • Development and utilization of sterile transgenic breeds capable of achieving larger harvest weights offer potential solutions for enhancing tilapia aquaculture productivity while addressing concerns related to sex management techniques.

Key points to design your business plan

This technology may be of interest to Manufacturers, resellers and users


By adopting this technology, Fingerlings producers can achieve up to 98% all-male tilapia stocks, resulting in faster growth rates and improved feed conversion efficiency.

  • Strategic collaborations with aquaculture research institutions and genetic breeding programs can refine production traits and accelerate the adoption of mono-sex tilapia technology among manufacturers.
  • Access to high quality broodstock, advanced breeding techniques, and expertise in genetic selection to produce genetically improved mono-sex tilapia fingerlings are essential resources that manufacturers must consider when adopting this technology.
  • In addition, investment in specialized equipment, and skilled personnel is essential to maintain production quality and efficiency.

Collaborate with aquaculture equipment suppliers, feed manufacturers, and agribusiness distributors to expand market reach and enhance product offerings.

The cost structure for the production of All Male Tilapia Fingerlings includes expenses related to broodstock acquisition, breeding program management, setup expenses, operational costs, and potential licensing fees. 

Compliance with licensing and regulatory requirements related to fish breeding, genetic manipulation and aquaculture practices, intellectual property laws and patent regulations for genetic technologies is essential for legal operations and market competitiveness.


Resellers of All Male Tilapia Fingerlings provide fish farmers and aquaculturists with access to high quality, genetically improved mono-sex tilapia broodstock. By offering superior performance fingerlings, resellers enable customers to achieve higher growth rates, increased yields, and improved profitability in tilapia farming operations.

  • Partnerships with Fingerlings producers, extension services, and government agencies can facilitate knowledge exchange and technology adoption among fish farming communities.
  • Resellers require access to reliable sources of genetically improved mono-sex tilapia fingerlings, efficient distribution networks, and marketing strategies to effectively reach target customers.
  • Knowledgeable staff, customer support services, and technical assistance are essential resources for ensuring customer satisfaction and product success.

The cost structure for reselling All Male Tilapia Fingerlings includes expenses related to fingerling procurement, transportation, storage, and marketing. Investment in promotional activities, customer outreach, and market development initiatives contribute to the overall cost structure for resellers.

Compliance with licensing agreements, intellectual property regulations, and aquaculture certification standards is essential for legal operation and market credibility.


Fish farmers benefit from adopting mono-sex male tilapia technology, which offers reliable growth rates, disease resistance, and uniform harvest sizes. This enhances farm productivity and profitability.

Comprehensive training programs empower end users with essential skills and knowledge for successful tilapia farming, covering breeding, management, and disease prevention techniques.

Collaborations with extension services, aquaculture consultants, and feed suppliers provide ongoing support and resources, ensuring optimized farm operations and sustainable aquaculture practices.


Positive or neutral impact

Adults 18 and over
Positive high
The poor
Positive low
Under 18
Positive low
Positive medium

Positive or neutral impact

Climate adaptability
It adapts somewhat well
Adaptability for farmers
It helps a lot
It doesn't hurt them
Carbon footprint
It reduces emissions a little
It makes a little difference
Soil quality
It doesn't harm the soil's health and fertility
Water usage
It uses the same amount of water

Countries with a green colour
Tested & adopted
Countries with a bright green colour
Countries with a yellow colour
Egypt Equatorial Guinea Ethiopia Algeria Angola Benin Botswana Burundi Burkina Faso Democratic Republic of the Congo Djibouti Côte d’Ivoire Eritrea Gabon Gambia Ghana Guinea Guinea-Bissau Cameroon Kenya Libya Liberia Madagascar Mali Malawi Morocco Mauritania Mozambique Namibia Niger Nigeria Republic of the Congo Rwanda Zambia Senegal Sierra Leone Zimbabwe Somalia South Sudan Sudan South Africa Eswatini Tanzania Togo Tunisia Chad Uganda Western Sahara Central African Republic Lesotho
Countries where the technology has been tested and adopted
Country Tested Adopted
Benin Tested Adopted
Cameroon Tested Adopted
Ethiopia Tested Adopted
Kenya Tested Adopted
Malawi Tested Adopted
Nigeria Tested Adopted
Senegal Tested Adopted
Tanzania Tested Adopted
Uganda Tested Adopted
Zambia Tested Adopted

This technology can be used in the colored agro-ecological zones. Any zones shown in white are not suitable for this technology.

Agro-ecological zones where this technology can be used
AEZ Subtropic - warm Subtropic - cool Tropic - warm Tropic - cool

Source: HarvestChoice/IFPRI 2009

The United Nations Sustainable Development Goals that are applicable to this technology.

Sustainable Development Goal 2: zero hunger
Goal 2: zero hunger
Sustainable Development Goal 8: decent work and economic growth
Goal 8: decent work and economic growth

  1. Selecting Broodstock:

    • Begin by choosing mature and healthy broodstock, preferably males and females, from a reliable source.
  2. Stocking Spawning Units:

    • Place the selected broodstock into separate spawning units, such as tanks or hapas, about 15 days before the spawning season.
  3. Feeding and Temperature Control:

    • Provide regular feeding for both males and females in their respective units. Gradually raise the water temperature up to 26°C.
  4. Monitoring Ovulation in Females:

    • Keep a close watch on female broodstock for signs of ovulation. When they carry eggs in their mouths, it's time to proceed.
  5. Egg Collection and Incubation:

    • Gently collect the eggs and transfer them to designated hatching jars. Incubate until hatching occurs, which typically takes around 10-12 days, depending on the temperature.
  6. Transferring Fry to Rearing Units:

    • Move the newly hatched fish, known as fry, from the brooder basins to rearing units.
  7. Hormonal Treatment (Optional):

    • If using hormonal alteration for mono-sex production, mix α-Methyltestosterone with fry feed. Ensure continuous feeding for 21 days to achieve a male rate of around 98%.
  8. Ensuring Proper Size Distribution:

    • After treatment, ensure there are only a few fry under 14mm in size.
  9. Selection and Management of Broodstock for Future Cycles:

    • For ongoing production cycles, continue to select and manage high-quality broodstock. These should be younger, weighing at least 300g, and free of wounds and parasites.
  10. Provision of Adequate Resources:

    • Ensure access to clean water, free from pollutants, and install aerators for oxygen supply. Provide hapa-style nets to raise the fingerlings.

Last updated on 22 May 2024