Effets du sexe et du muscle sur l’abondance de biomarqueurs de Tendreté et d’adiposité de la viande en aop maine anjou

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Al-Jammas, Marwa | Bonnet, Muriel | Couvreur, Sébastien | Pécot, M. | Aminot, G. | Valais, A. | Picard, Brigitte

Edité par CCSD ; ADIV -

Some proteins have been revealed as biomarkers for beef tenderness and adiposity by previous studies. The abundanceof these biomarkers could be affected by muscle, animal type (age, gender, breed) and the production system. Thisstudy analyzed the effects of animal and muscle type on the abundance of 20 biomarkers of meat tenderness andadiposity. The studied animals were 15 steers and 86 cows of the Maine Anjou PDO, and muscles were Longissimusthoracis, Rectus abdominis, Semimembranosus, Semitendinosus, Triceps brachii. The results showed that the abundanceof the majority of tenderness or adiposity biomarkers varied significantly between muscles. Rectus abdominis is themost different from other muscles. Gender had an effect on the abundance of several biomarkers in four muscles. InTriceps brachii no effect of gender was observed. These results are valuable and should be considered when predictingmeat tenderness and/or adiposity from the biomarker abundance and also when choosing the best predictor muscle.

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