Division 3 The lean meat content of the carcasse shall be calculated according to the following formula:
United Kingdom
Ŷ = 60,26989 – 0,81506 * X1 + 0,20097 * X2
where:
Ŷ X1 X2
the estimated percentage of lean meat in the carcasse
thickness of fat, including rind, in millimetres, measured at 7 cm from the midline
thickness of the muscle in millimetres, measured at 7 cm from the midline, between the third and fourth last rib
This formula shall be valid for carcasses weighing between 50 and 120 kilograms.