# Commission Decision of 11 March 2005 authorising methods for grading pig carcases in Poland (notified under document number C(2005) 552) (Only the Polish text is authentic) (2005/240/EC), Division 3: The lean meat content of carcasses shall be calculated on the basis of 10 variables according to the following formula:

Extent: E+W+S+N.I.

Ŷ = 73,8876 + (AF3_R2P1 × – 1,036616) + (AF3_R2P3 × – 0,180173) + (AF3_R2P13 × – 0,144679) + (AF3_R2P15 × – 0,221519) + (AF3_R3P5 × 0,136061) + (AF3_R4P4 × 0,249888) + (AF3_R4P5 × 0,330109) + (AF3_R4P6 × 0,184696) + (AF3_R4P8 × – 0,112875) + (AF3_R4P9 × – 0,113663)
where:
Ŷ = the estimated percentage of lean meat in the carcass,
R2P1, R2P3, R2P13 … R4P9 — are the variables measured by Autofom III.

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Source: https://www.legislation.gov.uk/eudn/2005/240/annex/part/5/division/3 (the official version)
Page: https://openlegislation.uk/eu-decision-2005-240/annex/part-5/division-3
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.