No L 39/44 Official Journal of the European Communities 15. 2. 92 COMMISSION DECISION of 22 January 1992 amending Decision 87/131/EEC authorizing a method for grading pig carcases in the Netherlands (Only the Dutch text is authentic) (92/100/EEC) THE COMMISSION OF THE EUROPEAN COMMUNITIES, Having regard to the Treaty establishing the European Economic Community, Having regard to Council Regulation (EEC) No 3220/84 of 13 November 1984 determining the Community scale for grading pig carcases('), as last amended by Regulation (EEC) No 3577/90 (3, and in particular Article 5 (2) thereof, Whereas the Commission, by Decision 87/131/EEC (), as last amended by Decision 87/395/EEC (%), has autorized a method for grading pig carcases in the Netherlands; Whereas the Government of the Netherlands has requested the Commission to authorize the application of a new formula for the calculation of the lean meat content of carcases in the framework of the grading method provided for in Decision 87/131/EEC; Whereas the measures provided for in this Decision are in accordance with the opinion of the Management Committee for Pigmeat, HAS ADOPTED THIS DECISION : Article 1 The text of Article 1 (3) of Decision 87/131/EEC is replaced by the following text: ‘3. The lean meat content of the carcase shall be calculated according to the following formula: - ' Y =p ¥ gilt +(1—p) ¥ castrate (%) where : Y the estimated percentage of lean meat in the carcase, Y gilt = 61,38 — 0,74 X, + 0,13 X, (%), ¥ castrate = 59,35 — 0,67 X, + 0,13 X, (%), where : X, = the thickness of backfat (including rind) in millimetres, measured at six centimetres off the midline of the split carcase, between the third and fourth last ribs, : X, = the thickness of muscle in millimetres, measured at the same time and in the same place as X,. p =1/ (1 + exp (—), | where: m = — 3277 — 04580 X, + 03038 X, + 0007777 (X, — 0001792 (X, — 0002557 X, - X, This formula shall be valid for carcases weighing between 50 and 120 kg’ No L 301, 20. 11. 1984, p. 1. No L 353, 17. 12. 1990, p. 23. ) OJ No L 51, 20. 2. 1987, p. 50. No L 208, 30. 7. 1987, p. 43.