This study was conducted to evaluate effects of dietary Mulberry leaves on growth performance, carcass traits and meat quality in finishing pigs. Here, a total of 72 crossbred [(Landrace × Yorkshire) × Duroc] pigs with an average initial body weight of 70.03 ± 0.48 kg were used in this 45‐day feeding trial. The pigs were randomly divided into three groups (6 pigs/pen and 4 replicates/group). Dietary treatments included a control diet (without any Mulberry leaves) and diets supplemented with 5% non‐ or fermented Mulberry leaf powder (MF or FMF respectively). The present findings indicated that compared with the control group, administration of MF or FMF significantly improved gain: feed ratio (p < .05) and reduced the backfat thickness (p < .05). Meanwhile, dietary MF and FMF significantly enhanced triglyceride deposition in Longissimus dorsi muscles (p < .05). Besides, both of MF and FMF could effectively improve the antioxidant capacity by increasing the content of T‐AOC and SOD in serum and reduce the rancidity of pork. In conclusion, supplementary MF and FMF could promote gain: feed ratio, reduce backfat thickness, increase fat deposition in muscle and reduce the rancidity of pork.

中文翻译：

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Morus nigra L. 叶可改善育肥猪的肉质。

本研究旨在评估日粮桑叶对育肥猪生长性能、胴体性状和肉质的影响。在此 45 天的饲养试验中，总共使用了 72 头杂交 [（长白 × 约克夏） × 杜洛克] 猪，平均初始体重为 70.03 ± 0.48 kg。将猪随机分为三组（6头/圈，4个重复/组）。饮食处理包括对照饮食（不含任何桑叶）和添加 5% 非或发酵桑叶粉（分别为 MF 或 FMF）的饮食。目前的研究结果表明，与对照组相比，MF 或 FMF 给药显着提高了增重：饲料比（p < .05) 并减少背膘厚度 ( p  < .05)。同时，日粮 MF 和 FMF 显着增强了背最长肌中的甘油三酯沉积( p  < .05)。此外，MF和FMF均可通过增加血清中T-AOC和SOD的含量，有效提高抗氧化能力，降低猪肉酸败。总之，补充MF和FMF可以促进增重：饲料比，降低背膘厚度，增加肌肉脂肪沉积，减少猪肉酸败。