Zhang Bo, Gao Yusheng, Shao Yuxin, Li Yipu, Ma Jianyuan, Xie Shuxian, Li Jing, Ma Tenghe, Wang Zheng
Institute of Animal Husbandry and Veterinary Medicine, Beijing Academy of Agriculture and Forestry Sciences, Beijing 100097, PR China.
Institute of Animal Husbandry and Veterinary Medicine, Beijing Academy of Agriculture and Forestry Sciences, Beijing 100097, PR China; School of Life Science and Food Engineering, Hebei University of Science and Technology, Shijiazhuang 050091, PR China.
Poult Sci. 2025 Mar;104(3):104856. doi: 10.1016/j.psj.2025.104856. Epub 2025 Jan 25.
This study investigated the effects of different dietary riboflavin supplementation levels on riboflavin status, meat quality, antioxidant capacity, breast muscle development, and lipid composition in pigeons. Squabs were fed diets with five riboflavin concentrations ranging from 1.20 to 16.20 mg/kg. Riboflavin, flavin adenine dinucleotide, and flavin mononucleotide concentrations in the liver and breast muscle were significantly lower in the riboflavin-deficient group (P < 0.05) and increased with higher riboflavin levels. Regarding meat quality, riboflavin supplementation improved shear force, redness, breast muscle weight, and percentage (P < 0.05), whereas riboflavin deficiency exhibited poorer meat characteristics. Riboflavin enhanced antioxidant capacity, as shown by reduced MDA and increased T-SOD and GR activity in the supplemented groups (P < 0.05). Histological analysis revealed that riboflavin-deficient pigeons had smaller muscle fiber diameter and greater fiber density (P < 0.05). Riboflavin supplementation also improved lipid composition by reducing saturated fatty acids and increasing polyunsaturated fatty acids, particularly arachidonic acid (P < 0.05). Additionally, riboflavin influenced the expression of key genes involved in lipid metabolism and antioxidant function, with downregulation of ACADL and ACADS in the deficient group (P < 0.05). These results indicate adequate riboflavin supplementation enhances pigeon meat quality, muscle development, antioxidant defense, and lipid metabolism. In conclusion, riboflavin supplements in the pigeon diet can improve the quality of pigeon meat by maintaining muscle development, enhancing antioxidant function, and stabilizing lipid metabolism.
本研究调查了不同日粮核黄素添加水平对肉鸽核黄素状态、肉质、抗氧化能力、胸肌发育和脂质组成的影响。将乳鸽饲喂含五种核黄素浓度（范围为1.20至16.20 mg/kg）的日粮。核黄素缺乏组肝脏和胸肌中的核黄素、黄素腺嘌呤二核苷酸和黄素单核苷酸浓度显著较低（P < 0.05），且随着核黄素水平升高而增加。关于肉质，添加核黄素改善了剪切力、肉色、胸肌重量和百分比（P < 0.05），而核黄素缺乏则表现出较差的肉质特征。核黄素增强了抗氧化能力，补充组中丙二醛减少、总超氧化物歧化酶和谷胱甘肽还原酶活性增加表明了这一点（P < 0.05）。组织学分析显示，核黄素缺乏的肉鸽肌纤维直径较小且纤维密度较大（P < 0.05）。添加核黄素还通过降低饱和脂肪酸并增加多不饱和脂肪酸，特别是花生四烯酸，改善了脂质组成（P < 0.05）。此外，核黄素影响参与脂质代谢和抗氧化功能的关键基因的表达，缺乏组中ACADL和ACADS下调（P < 0.05）。这些结果表明，充足的核黄素补充可提高肉鸽肉质、肌肉发育、抗氧化防御和脂质代谢。总之，肉鸽日粮中添加核黄素可通过维持肌肉发育、增强抗氧化功能和稳定脂质代谢来改善肉鸽肉品质。
