Comparative presentation of quality of pig carcass halves using different examination methods

Abstract

Investigations were performed on 135 pig half-carcasses of different genotypes, of both sexes, at several abattoirs in Vojvodina. The determination of the carcass halves according to body mass was performed on the grounds of the linear regression coefficient of characteristics per mass of chilled halves. The General Regression Models analysis, statistics 8, was applied. The percentage of muscle tissue was assessed in three ways: Simulation of the FOM instrumental method and using the dissection method: EU1 (Commission Regulation, 3127/94) and EU2 (Commission Regulation, 1197/2006). The obtained results demonstrated that the relative share of muscle tissue in pig carcass halves determined according to the EU1 regulation was significantly ( (lt) 0.05) lower (49.90%) than the established share of muscle tissue according to the FOM mathematical model (53.71%) and according to the valid EU2 regulation (54.03 %). In the chilled pig carcass halves, ham meat accounted for 16.05%, muscle tissue of the shoulder for 7.11%, LSD 8.49% and TRD 4.95. According to the distribution of carcass halves into market classes according to the SEUROP system using the FOM and EU2 methods, all carcass halves were ranked medium market class (E and U), while the EU1 formula classified only 36.30% of the carcass halves into the same class, and 63.70% into a lower market class (R). None of the formulas classified any carcass half as having the highest 'S' or the lowest percentage of meat 'O' and 'P'. On these grounds, we conclude that the examined samples are of medium quality, in fact, that the carcass halves belong to the medium quality market class (E, U and R). In closing, it can be concluded that further investigations on this subject are necessary because of the established differences in the meat percentage obtained by applying the previous (EU1) and the currently valid (EU2) formula. .

Istraživanje je urađeno na 135 svinjskih trupova/polutki različitih genotipova, oba pola u nekoliko klanica u Vojvodini. Stratifikacija polutki prema telesnoj masi izvršena je na osnovu koeficijenta linearne regresije osobina na masu ohlađenih polutki. Primenjena je analiza 'General Regression Models'/statistika 8. Procenat mišićnog tkiva procenjivan je na tri načina: Simulacijom instrumentalne metode FOM i primenom metode disekcije: EU1,(Commission Regulation, 3127/94) i EU2 (Commission Regulation, 1197/2006). Dobijeni rezultati su pokazali da je relativni udeo mišićnog tkiva u polutkama svinja određen prema prethodnom pravilniku EU1 signifikantno (p (lt) 0,05) niži (49,90%) od utvrđenog udela mišićnog tkiva prema matematičkom modelu FOM (53,71%) i prema važećem pravilniku EU2 (54,03 %). Na ohlađenim polutkama zaklanih svinja udeo mesa buta čini 16,05%, udeo mišićnog tkiva plećke 7,11%, LSD 8,49% i TRD 4,95. Distribucijom svinjskih trupova u tržišne klase prema SEUROP sistemu primenom FOM i EU2 metode sve polutke svrstane u srednje trgovačke klase (E i U), dok je EU1 formula klasifikovala samo 36,30% svinjskih polutki u istu trgovačku klasu, a 63,70% u nižu trgovačku klasu (R). Nijedna formula nije klasifikovala nijedan trup u tržišne klase mesa sa najvišim (S) i najnižim udelom mesa (O i P). Na osnovu toga zaključujemo da je ispitivani uzorak srednjeg kvaliteta, tj. polutke spadaju u srednje kvalitetne trgovačke klase (E, U i R). Na kraju može se zaključiti da zbog ustanovljenih razlika dobijenog procenta mesa primenom prethodne (EU1) i važeće (EU2) jednačine neophodna su dalja istraživanja na ovu temu. .