Forty entire males of four breeds, which represented diดดerent biotypes (dairy: 10 Spanish Holstein; dual purpose: 10 Brown Swiss; meat type: 10 Limousin; high muscularity: 10 Blonde d’Aquitaine) were analysed. Animals were weaned at seven months on average (except Holstein calves, which were weaned earlier), and fed intensively. Each breed was slaughtered at its usual commercial live weight, according to the market requirements. The m. Longissimus thoracis et lumborum (between T6 and L6) was cut, vacuum packaged and aged for 1, 3, 7, 14, 21 and 35 days. Cooked samples were evaluated by 8 panellists and 200 consumers.