Division 3 The lean meat content of the carcass shall be calculated according to the following formula:
United Kingdom
where:
FOM_F1 FOM_F2 FOM_M
the thickness of backfat in mm, measured at 8 cm off the midline of the carcass between the third and fourth last lumbar vertebrae.
the thickness of backfat in mm, measured at 6 cm off the midline of the carcass between the third and fourth last ribs.
the thickness of muscle in mm, measured at the same time and in the same place as F2