Division 3 The lean meat content of the carcass shall be calculated according to the following formula:F1
United Kingdom
Ŷ = 60,55 + 0,1142 × M 2 – 0,6292 × F 2
where:
Ŷ M 2 F 2
the estimated percentage of lean meat in the carcass,
the thickness of the dorsal muscle in millimetres, measured at the third to fourth last rib position, 6 centimetres from the dorsal midline, measured parallel to the split line of the carcass,
the thickness of back-fat (including rind) in millimetres measured at the same time, in the same place and in the same way as M 2.
This formula shall be valid for carcasses weighing between 60 and 120 kilograms.