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caness:foodprod:anfatavail

Animal Fat Available

CanESS > Food Production > Animal Fat Available

Animal Fat Available is a calculator that simulates animal slaughter rates and how portions of slaughtered livestock are distributed among various edible, offal, bone meal, and animal fat products. It comprises 6 procedures:

(1) Yearly Animal Slaughter

Inputs Outputs
animal stock fed (animals/year) from Food Biomass Requirementsanimal slaughter (animal/year)
average animal life (years) mass of animal slaughter (tonnes/year)
animal mass at slaughter (kg/animal)

Yearly Animal Slaughter takes animal stock fed (animals/year) from Food Biomass Requirements, average animal life (years), and animal mass at slaughter (kg/animal) to calculate animal slaughter (animal/year) and mass of animal slaughter (tonnes/year).

(2) Slaughter

Inputs Outputs
slaughter output share (animal type, animal slaughter product class) edible production from slaughter (tonnes/year)
mass of animal slaughter (tonnes/year) from (1) Yearly Animal Slaughter offal production from slaughter (tonnes/year)

The Slaughter procedure uses slaughter output share (animal type, animal slaughter product class) and mass of animal slaughter (tonnes/year) from (1) Yearly Animal Slaughter to compute the edible production from slaughter (tonnes/year) and offal production from slaughter (tonnes/year).

(3) Dead Animals

Inputs Outputs
animal stock fed (years) from Food Biomass Requirements dead animals (animals/year)
animal mortality fraction mass of dead animals (tonnes/year)
animal mass at death (kg/animal)

Dead Animals uses animal stock fed (years) from Food Biomass Requirements, animal mortality fraction, and animal mass at death (kg/animal) to compute the number of dead animals (animals/year) and the mass of dead animals (tonnes/year).

(4) Dead Animal Render

Inputs Outputs
dead render output share (animal type, animal slaughter product class) dead animal product production (tonnes/year)
mass of dead animals (tonnes/year)

Dead Animal Render takes dead render output share (animal type, animal slaughter product class) and mass of dead animals (tonnes/year) from the (3) Dead Animals to compute dead animal product production (tonnes/year).

(5) Render Production From Offal

Inputs Outputs
product share from offal rendering (animal type, animal slaughter product class)offal render product production (tonnes/year)
offal production from slaughter (tonnes/year)

Render Production from Offal uses product share from offal rendering (animal type, animal slaughter product class) and offal production from slaughter (tonnes/year) from (2) Slaughter to calculate offal render product production (tonnes/year), which is passed to the following procedure.

(6) Consolidate Production

Inputs Outputs
offal render product production (tonnes/year)bone meal production (tonnes/year)
animal fat production (tonnes/year)
water production (tonnes/year)

Consolidate Production takes offal render product production (tonnes/year) from (5) Render Production from Offal to determine the fraction of which is used for bone meal production (tonnes/year), animal fat production (tonnes/year), and water production (tonnes/year).


Animal Fat Available does not pass any of the produced information to other calculators; it is simply there for calibration and informational purposes.



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caness/foodprod/anfatavail.txt · Last modified: 2012/05/10 18:52 by chris.stone