Effects of Ante-Mortem Vitamin D3 Supplementation on Meat Quality in Yanbian Yellow Bulls

Binru Li,Beibei Hao,Hongyan Xu,Xinxin Zhang,Zewen Wu,Bingbing Wang,Yang Yi,Mengxia Sun,Yanzhu Yang,Guangjun Xia

Published 2026 in Animals

ABSTRACT

This preliminary study investigated the effects of ante-mortem Vitamin D3 (VD3) supplementation on blood parameters and meat quality in Yanbian yellow bulls. Twenty healthy Yanbian yellow bulls (intact male Yanbian yellow bulls, 30 ± 1 months of age; initial body weight 534 ± 15 kg) were allocated into five groups: a control (basal diet) and four treatment groups with varying VD3 regimens (3 × 106 or 6 × 106 IU/d for 7 days, with or without a 7-day withdrawal). Results demonstrated that, compared to the control group, VD3 supplementation elevated serum calcium (p < 0.01) and phosphorus levels (p < 0.05) while enhancing antioxidant capacity (p < 0.05) and immunoglobulin production (p < 0.01). Muscle calcium deposition increased (p < 0.01), accompanied by higher meat lightness (CIE L*) values (p < 0.01) and reduced drip loss rate (p < 0.01). Shear force decreased across cuts (p < 0.01), which was linked to calpain-mediated protein degradation and sarcomere elongation (p < 0.01). Under the conditions of this study, the protocol involving 3.0 × 106 IU/d VD3 supplementation for 7 days followed by a 7-day withdrawal yielded the most favorable outcomes. These findings suggest a potential strategy to improve beef quality by regulating calcium homeostasis and enhancing muscle proteolysis, warranting further validation in larger populations.

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