Table 3. Formulas used to estimate animal product losses (milk, wool, meat and fertility).

Type of product	Formula
Percentage of offal losses	• Total offal losses(##) = liver losses + lung losses • Percentage of liver losses(##) = (liver losses/total offal losses)*100 • Percentage of lung losses(##) = (lung losses/total offal losses)*100
Production	• Average weight per carcass(^) = annual carcass production/number of animals slaughtered in that year • Average annual milk yield per cow(^) = total milk production of the country/number of dairy cows • Average annual wool production(^) = total wool production in the country/number of sheep • Mean number of new-borns per female(^) = total number of births/number of breeding females
Monetary losses due to offal losses	• Liver losses = (total seizures due to CE(#) * Percentage of liver losses)* price per kg of liver • Lung losses = (total seizures due to CE(#) * Percentage of lung losses)* price per kg of lung • Total losses = Liver losses + Lung losses
Meat losses	• Weight losses = ((Average carcass weight × percentage of carcass weight reduction(###))* number of infected animals(#))* price per kg of meat
Milk losses	– Number of infected cows = number of dairy cows(#) * prevalence of CE(#) • Milk losses per cow = production of milk per cow * rate of reduction in milk production due to CE(###) • Total milk losses = (number of infected cows * losses in milk per cow)* milk price per litre
Wool losses	• Infected sheep = number of sheep(#) * prevalence of CE • Wool losses per animal = average wool production per animal * percentage of wool production reduction(###) • Total wool losses = (infected sheep * losses of wool per animal)* price of wool
Decreased fertility	• New-born losses = (((number of breeding females(#) * CE prevalence) * average number of new-borns per female) * percentage of fertility reduction(###)) * New-born price
(#): ministerial data; (##): estimated from Khénifra records; (###): literature data; (^): estimated from ministerial data