This study investigated the effects of ramie (0, 3, 6, 9, or 12%) included in finishing diets on carcass traits and meat quality of Xiangcun black pigs. Results showed that ramie decreased (linear, P < .05) backfat depth while it increased (linear, P < .05) loin-eye area. A quadratic effect of shear force in longissimus thoracis (LT) was observed, and the lowest value was noted in the 6% ramie group. Protein content in LT was linearly increased by ramie (linear, P < .01). Meanwhile, dietary ramie linearly decreased lipogenic genes mRNA levels and fiber cross-sectional area, but it linearly increased total fiber number of LT. These results suggest that ramie included in the diet <9% is an effective feed crop to partly improve carcass trait and muscle chemical composition without negatively affecting growth performance, and the underlying mechanism may be due to the changed lipogenic potential and myofiber characteristics induced by ramie.

本研究调查了日粮中添加的of麻（0％，3％，6％，9％或12％）对湘村黑猪car体性状和肉质的影响。结果表明，苎麻降低（线性，P  <0.05）背膘深度，同时增加它（线性，P  <0.05）腰肉眼区域。观察到了在长经胸（LT）中剪切力的二次效应，在6％的麻组中观察到了最低的值。LT麻中的蛋白质含量线性增加（线性，P <.01）。同时，日粮ie麻线性地降低了生脂基因的mRNA水平和纤维横截面积，但线性地增加了LT的总纤维数。这些结果表明，日粮中<麻含量低于9％的is麻是一种有效的饲料作物，可部分改善car体性状和肌肉化学成分，而不会对生长性能产生负面影响，其潜在机制可能是由于麻引起的脂肪生成潜力和肌纤维特性改变。