中国饲料Issue(16)：57-62,6.DOI:10.15906/j.cnki.cn11-2975/s.20261610
甘草提取物对育肥猪生长性能、肠道形态及肉品质的影响
Effects of glycyrrhiza extract on growth performance,intestinal morphology,and meat quality of finishing pigs
摘要
Abstract
This study investigated the regulatory effects of licorice extract on the growth performance,intestinal morphology,and meat quality traits of finishing pigs.Eighty healthy Landrace×Yorkshire(LY)crossbred finishing pigs with an initial body weight of approximately 60 kg were selected and randomly allocated into four treatment groups based on a single-factor completely randomized design,with five replicates per group and four pigs per replicate.The control group was fed a basal diet,while the experimental groups received the basal diet supplemented with 0.05％,0.10％,or 0.15％licorice extract,respectively,for a 60-day trial period following a 7-day adaptation phase.The results demonstrated that,compared with the control group,dietary supplementation with 0.10％and 0.15％licorice extract significantly increased the average daily gain(ADG)by 8.7％and 9.2％(P<0.05,respectively),and significantly improved the feed conversion ratio(F/G)by reducing it by 8.6％and 8.1％(P<0.05,respectively).Serum biochemical analysis revealed that superoxide dismutase(SOD)activity and total antioxidant capacity(T-AOC)were significantly up-regulated,whereas the content of malondialdehyde(MDA),a marker of lipid peroxidation,was significantly decreased(P<0.05).Intestinal morphometry showed that the villus height in the duodenum,jejunum,and ileum was significantly increased,crypt depth was significantly reduced,and the villus height-to-crypt depth ratio(V/C)was significantly elevated(P<0.05).Furthermore,muscle quality was enhanced,as evidenced by significant improvements in pH at 24 h postmortem(pH24h)and water-holding capacity,alongside a significant reduction in shear force(P<0.05).Based on a comprehensive evaluation of multiple indices,the 0.10％supplementation level exhibited optimal production benefits.Therefore,the recommended optimal dietary inclusion rate of licorice extract for finishing pigs is 0.10％.关键词
甘草提取物/育肥猪/生长性能/肠道形态/肉品质/抗氧化Key words
licorice extract/finishing pigs/growth performance/intestinal morphology/meat quality/antioxidant分类
农业科技引用本文复制引用
王汝都,陈功义,王申锋,孟玉学..甘草提取物对育肥猪生长性能、肠道形态及肉品质的影响[J].中国饲料,2026,(16):57-62,6.基金项目
河南农业职业学院校企研发专项(SESRC2025TD04、SESRC2025TD01) （SESRC2025TD04、SESRC2025TD01）
2026年度河南省高等学校重点科研项目计划(26B230012) （26B230012）
