Characterization of animal products according to geographic origin and feeding diet using nuclear magnetic resonance and isotope ratio mass spectrometry. Part II: Beef meat

Meat samples from Charolais steers bred at different geographical sites in France and fed on either maize silage, indoors, or grass were analyzed using 18O IRMS and 1H, 2H and 13C NMR spectroscopy. Some parameters showed significant differences according to the production site or feeding. A discriminant factorial analysis allowed the selection of four parameters to identify the production site and diet of the animals. All grazing steers were well classified, as were 94% of the steers fed on maize ensilage.