F3 Fish-Free Feed Challenge Calculations
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Species:Carp / TilapiaCarp / Tilapia
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Typical DietImproved Diet
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Species Production Amount (tonnes)75,786.8875,786.88
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Feed Conservsion Ratio1.61.6
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Fishmeal % in Feed20
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Fish Oil % in Feed00
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Assumptions:
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1. Forage fish used in calculations is Anchoveta (Peruvian anchovy):
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% fishmeal2424
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% fish oil55
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Average Weight (tonnes)0.000019350.00001935
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2. 33% of fishmeal and fish oil in average feed comes from byproduct, thereby reducing need for fishmeal and fish oil from whole forage fish by that amount
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Step 1:Calculate amount of feed needed (tonnes) for production amount
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Species production amount * Feed Conversion Ratio121,259.00121,259.00
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Amount of Fishmeal needed (tonnes) for production amount
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Fishmeal rate of inclusion in Feed * Feed Needed2,425.180.00
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Amount of Fish Oil needed (tonnes) for production amount
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Fish Oil rate of inclusion in Feed * Feed Needed0.000.00
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Step 2:Calculate limiting ingredient using Forage Fish Dependency Ratio (FFDR)
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FM FFDR: = Fishmeal rate of inclusion in Feed / Fishmeal % in Forage Fish
0.080.00
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FO FFDR: = Fish Oil rate of inclusion in Feed / Fish Oil % in Forage Fish0.000.00
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Limiting ingredient is one with higher FFDRFish oilN/A
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Step 3:Calculate the amount of Forage Fish Needed (tonnes)
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FFDR of Limiting Ingredient * Feed Needed * 0.676,770.290.00
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Step 4:Calculate the # of Forage Fish Needed
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Weight of Forage Fish Needed / Weight of a Single Forage Fish349,886,003.450.00
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Extra:Calculate excess weight of non-limiting ingredient (tonnes)
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1. Calculate amount of non-limiting ingredient created by amount of forage fish needed
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Amount of Forage Fish Needed * Fish Oil % in Forage Fish338.510.00
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2. Subtract amount of non-limiting ingredient needed for production amount by amount of non-limiting ingredient created by amount of forage fish needed338.510.00
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FORAGE FISH SAVINGS
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# Forage fish needed from Typical Diet - # forage fish needed for Improved Diet
349,886,003.45
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