Dietary supplementation with flavonoids from mulberry leaves improves growth performance and meat quality, and alters lipid metabolism of skeletal muscle in a Chinese Hybrid Pig

作者：Yàn Liú, Yi Xiao, Jianpeng Xie, Yinglin Peng, F. Li, C. Chen, Youzhi Li, X. Zhang, Jianhua He, Dingfu Xiao, Yulong Yin · 发表于：Animal Feed Science and Technology · 年份：2022 · DOI：10.1016/j.anifeedsci.2022.115211 · 被引用次数：22 · 研究领域：Animal Nutrition and Physiology、Peroxisome Proliferator-Activated Receptors、Adipose Tissue and Metabolism

The effect of dietary supplementation of flavonoids from mulberry leaves (FML) on the growth, carcass traits, meat quality, serum antioxidative parameters, and fatty acid profile and lipid metabolism of skeletal muscle in finishing pigs were investigated in the present study. A total of 120 crossbred F1 barrows of Berkshire and Bama mini-pig with an average initial body weight (BW) of 45.11 ± 4.23 kg were randomly assigned to one of five treatment groups. Each treatment group consisted of six replicates (pens) with four pigs per pen. The pigs were fed either a control diet (FML0) based on corn, soybean meal, and wheat bran, or the control diet with 200, 400, 800, or 1600 mg/kg of added FML (treatments FML200, FML400, FML800, FML1600, respectively). The feeding experiment lasted for 58 days after a 7-day adaptation period. Blood and muscle samples were collected from 30 pigs (one pig per pen) at the end of this experiment. The results showed that FML increased (P < 0.05) the average daily gain, lean meat percentage, loin-eye area, and contents of C10:0, C18:3n3, and n-3 polyunsaturated fatty acid (PUFA) in the longissimus lumborum (LL) muscle, and serum activities of superoxide dismutase and catalase in a significant linear or quadratic pattern. FML reduced (P < 0.05) the ratio of feed intake to body weight gain, body fat percentage, muscular ratio of ∑n-6 PUFA/∑n-3 PUFA, and serum malondialdehyde concentration. The reduction in the fiber cross-sectional area and shear force i...