›› 2017, Vol. 29 ›› Issue (12): 1970-1977.DOI: 10.3969/j.issn.1004-1524.2017.12.03

• Animal Science • Previous Articles     Next Articles

Application of multivariate analysis in evaluation of meat quality for local pig breeds

XU Yifei1, TIAN Xiaojing2, LIU Lixia2, GAO Dandan2, CHEN Shi'en2, *, LI Mingsheng2, LIU Gendi2, LIU Yuanlin2   

  1. 1. Gransu Province Food Inspection Institute, Lanzhou 730030, China;
    2.College of Life Science and Engineering, Northwest Minzu University, Lanzhou 730030, China
  • Received:2016-12-27 Online:2017-12-20 Published:2018-01-08

Abstract: The differences of meat quality among local pig breeds (Bamei, Juema and Yantai black pigs) and Large White were studied by detection of the physichemical indexes and texture parameters. The texture parameters were acquired by TMS-Pro texture analyzer, and the physichemical indexes were detected according to the national standards. The texture parameters, physichemical indexes and the combination of texture parameters and physichemical indexes, were used as input data to perform the principle component analysis, canonical discriminant analysis and cluster analysis, and optimized by stepwise linear discriminant analysis. The results showed that the physichemical indexes were helpful to distinguish meat quality among different pig breeds, and the combination data set integrated more related information to improve the discrimination results. The results provide a new way for the evaluation of meat quality.

Key words: local pig breeds, meat quality, principal component analysis, canonical discriminant analysis, cluster analysis, stepwise linear discriminant analysis

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