Discrimination of Meat Produced by Bos taurus and Bos indicus Finished under an Intensive or Extensive System
Faculdade de Medicina Veterinária, Universidade Lusófona, Campo Grande, 376, 1749-024 Lisboa, Portugal
CIISA, Faculdade de Medicina Veterinária, Universidade de Lisboa, 1300-477 Lisboa, Portugal
Universidade Federal de Lavras, Lavras, Minas Gerais 37200-000, Brazil
IFMT, Campus Cuiabá, Bela Vista, Mato Grosso 78050-560, Brazil
Instituto Mineiro de Agropecuária, Belo Horizonte, Minas Gerais 31630-901, Brazil
Author to whom correspondence should be addressed.
Received: 27 August 2020 / Revised: 17 September 2020 / Accepted: 19 September 2020 / Published: 24 September 2020
This research was carried out to investigate the usefulness and reliability of meat quality traits such as physicochemical properties and fatty acid profiles to discriminate between meat produced by taurine and zebu cattle, finished on pasture or grain. This approach is of utmost importance to assess the authenticity of meat products, particularly when beef is certified based on criteria such as breed and finishing system. Our results using discriminant analyses indicate that meats originating from pasture- or grain-finishing can be discriminated with high reliability, essentially on the basis of their fatty acid profile. The global distinction of meat from the two genetic groups is somewhat more difficult to achieve reliably. Still, prior knowledge of the finishing system used to produce meat from a given genetic group enhances the trustworthiness of the assignment procedure, allowing the reliable allocation of meat samples originating from Bos indicus and Bos taurus finished on pasture or grain, with fatty acid profiles being better discriminating factors than physicochemical properties. These results can be adopted as tools to be used in meat certification programs.