1. Stress proteins in cull cows: relationships with transport and lairage durations but not with meat tenderness
- Author
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GAGAOUA, Mohammed, Terlouw, Claudia, Monteils, Valérie, Couvreur, Sebastien, Picard, Brigitte, Unité Mixte de Recherches sur les Herbivores - UMR 1213 (UMRH), VetAgro Sup - Institut national d'enseignement supérieur et de recherche en alimentation, santé animale, sciences agronomiques et de l'environnement (VAS)-AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement-Institut National de la Recherche Agronomique (INRA), Ecole Supérieure d’Agricultures (ESA), Université Bretagne Loire (UBL), Unité Mixte de Recherches sur les Herbivores ( UMR 1213 Herbivores ), VetAgro Sup ( VAS ) -AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement-Institut National de la Recherche Agronomique ( INRA ), Université Bretagne Loire ( UBL ), Unité Mixte de Recherche sur les Herbivores - UMR 1213 (UMRH), and Institut National de la Recherche Agronomique (INRA)-VetAgro Sup - Institut national d'enseignement supérieur et de recherche en alimentation, santé animale, sciences agronomiques et de l'environnement (VAS)-AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement
- Subjects
manutention ,[ SDV ] Life Sciences [q-bio] ,HSPs proteins ,[SDV]Life Sciences [q-bio] ,cow ,protéome du muscle ,food and beverages ,PDO Maine-Anjou cows ,muscle proteome ,meat quality ,pre-slaughter handling ,abattage ,longissimus cervicis and longissimus thoracis muscles ,tendrete de la viande ,muscle long dorsal ,vache ,handling - Abstract
This work used K-means (k=3) after PCA analysis on 109 PDO Maine-Anjou cows according to the abundances of small and large heat shock proteins (HSPs) in the Longissimus thoracis muscle. Classes LP (n=24) and SP (n=33) were characterized by greater abundances of large and small HSPs, respectively, while class IP (n=52) was intermediate. The classes were compared for the abundance of other proteins in the same muscle and for meat tenderness. The effects of pre-slaughter factors (transport and lairage durations) were also investigated. Meat tenderness did not differ for any comparison. Certain proteins were influenced by pre-slaughter conditions. Among them, H2AFX and µ-calpain were impacted by both factors. The possible role of H2AFX (H2A histone family, member) in the balance of various processes involved in meat tenderization is discussed.
- Published
- 2017
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