TFSTTFST

The Tilapia Farming Support ToolThe Tilapia Farming Support Tool

Welcome Welcome toto the world of virtual Tilapia the world of virtual Tilapia farmingfarming

TFSTTFST

Developed byDeveloped by

Nefisco & XiNefisco & Xi

With financial support ofWith financial support of

GTZGTZ (German Technical Cooperation)(German Technical Cooperation)

Why TFSTWhy TFST

Tilapia farming increased spectacularTilapia farming increased spectacularlyly in in the last decadethe last decade

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Africa Asia

Tilapia farming systemsTilapia farming systems

Most Tilapias are still raised in pondsMost Tilapias are still raised in ponds. . There are There are a large number of farming systems, mainly a large number of farming systems, mainly aiming at the reduction of the excessive aiming at the reduction of the excessive reproduction of Tilapia:reproduction of Tilapia:

• Mixed cultureMixed culture• All male, hand sexedAll male, hand sexed• All male sex reversedAll male sex reversed• Mixed culture with a predatorMixed culture with a predator

EconomicsEconomics

Local economics and consumer Local economics and consumer preferences determine the financial preferences determine the financial success and risk of a Tilapia farming success and risk of a Tilapia farming systemsystem

A successful rearing system in one A successful rearing system in one country can be a failure in another country can be a failure in another countrycountry

Two examplesTwo examples• In Ivory Coast, you are obliged to use all In Ivory Coast, you are obliged to use all

male fingerlings as the market only male fingerlings as the market only acceptacceptss large size Tilapia large size Tilapia

• In Congo Brazzaville, mixed culture is In Congo Brazzaville, mixed culture is successful as the market prefers successful as the market prefers mediummedium--sizesizedd Tilapia Tilapia

TFSTTFST

• assistassistss you in the formulation of the you in the formulation of the most optimal Tilapia farming systemmost optimal Tilapia farming system

• It takes into consideration the local It takes into consideration the local economics and consumer preferenceseconomics and consumer preferences

The basis of TFST The basis of TFST

TFST is based on:TFST is based on:

• Population Dynamic ModellingPopulation Dynamic Modelling:: FFollows ollows birth, mortality and growth of the Tilapia birth, mortality and growth of the Tilapia you stocked in your virtual pond you stocked in your virtual pond

• Individual Based ModellingIndividual Based Modelling: F: Follows ollows each individual Tilapia in your virtual each individual Tilapia in your virtual pondpond

Inputs for TFSTInputs for TFST• Pond sizePond size• Stocking densityStocking density• Number of rearing daysNumber of rearing days• Sex distribution and size stocked fingerlings at startSex distribution and size stocked fingerlings at start• Feed typeFeed type• Mixed culture with predatorsMixed culture with predators• Predator stocking density and size of predatorPredator stocking density and size of predator• The number of rearing periods and simulation per rearing The number of rearing periods and simulation per rearing

periodperiod• Financial or economic parametersFinancial or economic parameters

Outputs of TFSTOutputs of TFST• Yields per haYields per ha• Yields per species and size groupYields per species and size group• Average weight at harvestAverage weight at harvest• Cost and revenuesCost and revenues

As TFST is an Individual Based ModelAs TFST is an Individual Based Model,, it it gives you the variation in the expected gives you the variation in the expected

outcomesoutcomes

TFST has two modulesTFST has two modules• The main simulation moduleThe main simulation module: with : with

specific inputs a simulation can be specific inputs a simulation can be carried out numerous times, providing carried out numerous times, providing detailed outputs and its variationdetailed outputs and its variation

• The optimisation moduleThe optimisation module: this module : this module allows you to search for the best allows you to search for the best farming system, once you have farming system, once you have provided your own economic dataprovided your own economic data

The structure of TFSTThe structure of TFST

The main screen of TFSTThe main screen of TFST

TFST inputsTFST inputs

Tilapia dataTilapia data Economic dataEconomic data

TFST outputsTFST outputs

Net yieldNet yield RevenuesRevenues

TFST optimisationTFST optimisation

TFST objectiveTFST objective• We hope that TFST will support the We hope that TFST will support the

sustainable development of Tilapia farming in sustainable development of Tilapia farming in developing countriesdeveloping countries

• TFST TFST indicates economic and biological indicates economic and biological bottlenecks and facilitates bottlenecks and facilitates thereby thereby decision decision making of potential tilapia farmersmaking of potential tilapia farmers

• TFST canTFST can be used as a virtual learning tool be used as a virtual learning tool for students at agriculture colleges for students at agriculture colleges

Thank you for your attentionThank you for your attention