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Meat Quality of Crossbred Porkers without the Gene RYR1T Depending on Slaughter Weight

  • Czyzak-Runowska, Grazyna (Department of Small Mammalian Breeding and Raw Materials of Animal Origin, Faculty of Animal Breeding and Biology, Poznan University of Life Sciences) ;
  • Wojtczak, Janusz (Department of Small Mammalian Breeding and Raw Materials of Animal Origin, Faculty of Animal Breeding and Biology, Poznan University of Life Sciences) ;
  • Lyczynski, Andrzej (Department of Small Mammalian Breeding and Raw Materials of Animal Origin, Faculty of Animal Breeding and Biology, Poznan University of Life Sciences) ;
  • Wojtowski, Jacek (Department of Small Mammalian Breeding and Raw Materials of Animal Origin, Faculty of Animal Breeding and Biology, Poznan University of Life Sciences) ;
  • Markiewicz-Keszycka, Maria (School of Agriculture and Food Science, University College Dublin) ;
  • Stanislawski, Daniel (Computer Laboratory of Faculty of Animal Breeding and Biology, Poznan University of Life Sciences) ;
  • Babicz, Marek (Department of Pig Breeding and Production Technology, University of Life Sciences in Lublin)
  • 투고 : 2014.07.12
  • 심사 : 2014.10.14
  • 발행 : 2015.03.01

초록

The first aim of the study was to compare selected meat quality parameters in porkers without the gene $RYR1^T$ (ryanodine receptor gene). These were porkers slaughtered at 100 to 115 kg and 116 to 130 kg live weight. The second aim of the study was to determine the occurrence frequency of standard-quality meat (red, firm, nonexudative [RFN]) and the occurence frequency of defective meat (pale, soft, exudative [PSE] and acid, soft, exudative [ASE]). The analysis was conducted on the longissimus lumborum muscle in 114 crossbred porkers. The porkers were a cross of Camborough 22 sows and boars from lines 337PIC (Pig Improvement Company), Norsvin Landrace and Pietrain. All of the animals were provided with identical environmental and nutritional conditions. The average weight of the slaughtered animals in the light and heavy groups was 110 kg and 122 kg, respectively. Both groups had the same average post-slaughter meatiness (56.5%). A statistical analysis of selected meat-quality parameters did not show any significant differences between the weight groups. On the other hand, the classification based on carcass quality showed an occurence frequency of defective meat in heavier crossbred porkers (116 to 130 kg) that was three times higher than in those cross bred animals which weighed 100 to 115 kg when slaughtered. In porkers without the gene $RYR1^T$, the defective meat types PSE and ASE occurred with a frequency of 17.54%.

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피인용 문헌

  1. Reviews of Science for Science Librarians: Meat Science around the World, 1980–2014 vol.34, pp.3, 2015, https://doi.org/10.1080/0194262X.2015.1072491
  2. Influences of Housing Systems and Slaughter Weight on the Market Realization of Slaughter Pigs by SEUROP Classification vol.66, pp.2, 2015, https://doi.org/10.11118/actaun201866020389