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Comparison of Meat Quality and Fatty Acid Composition of Longissimus Muscles from Purebred Pigs and Three-way Crossbred LYD Pigs

  • Choi, Yeong-Seok ;
  • Lee, Jin-Kyu ;
  • Jung, Ji-Taek ;
  • Jung, Young-Chul ;
  • Jung, Jong-Hyun ;
  • Jung, Myung-Ok ;
  • Choi, Yang-Il ;
  • Jin, Sang-Keun ;
  • Choi, Jung-Seok
  • Received : 2016.06.29
  • Accepted : 2016.10.10
  • Published : 2016.10.31

Abstract

This study was conducted to find pork quality to meet the needs of consumers. Thus, the meat quality and fatty acid composition of longissimus muscles from purebred pigs (Landrace, Yorkshire, and Duroc) and three-way crossbred LYD pigs were compared and evaluated. Chemical compositions of longissimus muscles were significant (p<0.05) different among pigs. Duroc contained significant (p<0.05) higher fat contents than other pigs, whereas significant (p<0.05) higher moisture contents were observed in Landrace, Yorkshire, and LYD pigs compared to those of Duroc pigs. The values of pH24 h and pH14 d were the highest in Landrace pigs. Myoglobin contents of LYD pigs were higher (p<0.05) than those of purebred pigs. Regarding meat color, Duroc and Yorkshire pigs had higher redness values than Landrace and LYD pigs, while Landrace pigs had the lowest (p<0.05) color values among all pigs. There was no significant difference in shear force or water holding capacity (WHC). Duroc pigs maintained the lowest drip loss during 14 d of cold storage. In sensory evaluation, the marbling scores of Duroc pigs were higher (p<0.05) than other pigs. Regarding fatty acid compositions, total USFA, poly-, n-3, and n-6 contents were the highest (p<0.05) in LYD pigs, while total SFA contents were the highest (p<0.05) in Duroc pigs. Based on these results, purebred pigs had superior overall meat quality to crossbred pigs.

Keywords

purebred pigs;crossbred pigs;meat quality;fatty acid composition

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Acknowledgement

Grant : 생명자원 부가가치 제고기술

Supported by : 정피엔씨연구소