Abstract

Submitted 2020-07-23 | Accepted 2020-08-16 | Available 2020-12-01 https://doi.org/10.15414/afz.2020.23.mi-fpap.265-268 The study was performed on 136 pig carcasses representing the Croatian pig population with regards to the breed structure. The carcasses were dissected according to the EU reference method and lean meat percentage was estimated using the Hennessy Grading Probe (HGP7) device and the “Two points” (ZP) method. Comparison of lean meat percentage obtained by dissection and two prediction methods showed significant differences in estimating the lean meat percentage of pig carcasses (P <0.05). The distribution of carcasses according to SEUROP system showed a difference in the classification depending on the applied method, indicating a need for adjustment of current formulae for lean meat percentage estimation in Croatia. 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Commission Implementng Regulaton (EU) 2017/1184 of 20 April 2017 laying down rules for the applicaton of Regulaton (EU) No 1308/2013 of the European Parliament and of the Council as regards the Union scales for the classifcaton of beef, pig and sheep carcasses and as regards the reportng of market prices of certain categories of carcasses and live animals. Official Journal of the European Union. htps://eur-lex.europa.eu/legal-content/EN/TXT/?uri= CELEX%3A32017R1184. Font-i-Furnols, M., Candek-Potokar, M., Daumas, G., Gispert, M., Judas, M. & Seynaeve, M. (2016). Comparison of national ZP equations for lean meat percentage assessment in SEUROP pig classification. Meat science, 113, 1-8. Gangsei, L. E., Kongsro, J., Olsen, E. V., Roe, M., Alvseike, O. & Saebo, S. (2016). Prediction precision for lean meat percentage in Norwegian pig carcasses using ‘Hennessy grading probe 7’: Evaluation of methods emphasized at exploiting additional information from computed tomography. 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NN 71/2018 Pravilnik o razvrstavanju i oznacivanju goveđih, svinjskih i ovcjih trupova te oznacivanju mesa koje potjece od goveda starih manje od 12 mjeseci. Sack, E. (1983). Using instruments to grade pork sides. Fleischwirtschaft, 63(3), 372–379. Vester-Christensen, M., Erbou, S.G.H., Hansen, M.F., Olsen, E.V., Christensen, L.B., Hviid, M., Ersboll, B.K. & Larsen, R. (2009). Virtual dissection of pig carcasses. Meat Science, 81, 699–704 Walstra, P. & Merkus, G. S. M. (1996). Procedure for assessment of the lean meat percentage as a consequence of the new EU reference dissection method in pig carcass classification: based on discussion in the EU Management Committee on Pig Meat and based on discussions with dissection experts during a meeting on May 18-19, 1994 at Zeist, NL (No. 96.014). ID-DLO.

Highlights

  • The lean meat percentage (LMP) is used as the primary classification variable for the quality of pig carcasses in the European Union (Gangsei et al, 2016)

  • The data obtained either by different devices or by ZP method, do not represent a direct measurement of LMP but are used as predictor variables in equations derived from the results of dissection trial performed by one or a combination of the dissection methods recommended by European Commission (Regulation (EU) No 1308/2013; Commission delegated regulation (EU) 2017/1182)

  • The highest LMP was predicted by the formula used for HGP7 device (60.56%) while the lowest was assessed by the equation for ZP method (57.66%)

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Summary

Introduction

The lean meat percentage (LMP) is used as the primary classification variable for the quality of pig carcasses in the European Union (Gangsei et al, 2016). The data obtained either by different devices or by ZP method, do not represent a direct measurement of LMP but are used as predictor variables in equations derived from the results of dissection trial performed by one or a combination of the dissection methods recommended by European Commission (Regulation (EU) No 1308/2013; Commission delegated regulation (EU) 2017/1182). According to these regulations, for the construction of sufficiently precise equations to be used with the estimation methods, the dissection trial should include at least 120 pig carcasses. Due to the change of leanness in pig population, and to correctly classify the pig carcasses, the equations to estimate LMP should be regularly updated

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