Resveratrol improves meat quality and promotes intramuscular fat deposition of finishing steers through activation of the PPAR signaling pathway

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The results showed that RES significantly increased the final body weight and average daily gain of steers (P < 0.05). Moreover, it significantly increased the live weight before slaughter and carcass weight while reducing subcutaneous backfat thickness (P < 0.05). Additionally, RES significantly increased the IMF content in the Longissimus thoracis et lumborum (LTL) muscle and reduced drip loss, cooking loss and shear force (P < 0.05). Notably, 400 mg/kg RES supplementation significantly decreased adipose triglyceride lipase and hormone-sensitive lipase activities of LTL muscle and acetyl-CoA carboxylase activity was enhanced in all RES-treated groups (P < 0.05).

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