不同复合菌酶添加对中药渣青贮饲料的营养价值及发酵品质的影响  

Effect of bacterial enzyme complexes on the quality of silage made from Chinese medicine crop residues

作　　者：郭田心 阮诗诗 郭香 詹佳琦 梁秋雨 陈晓阳 周玮 张庆 GUO Tian-xin;RUAN Shi-shi;GUO Xiang;ZHAN Jia-qi;LIANG Qiu-yu;CHEN Xiao-yang;ZHOU Wei;ZHANG Qing(College of Forestry and Landscape Architecture,South China Agricultural University,Guangdong Province Research Center of Woody Forage Engineering Technology,Guangdong Key Laboratory for Innovative Development and Utilization of Forest Plant Germplasm,State Key Laboratory for Conservaion and Utilization of Subtropical Agro-bioresources,Guangzhou 510642,China)

机构地区：[1]华南农业大学林学与风景园林学院,广东木本饲料工程技术研究中心,广东省森林植物种质创新与利用重点实验室,亚热带农业生物资源保护与利用国家重点实验室,广东广州510642

出　　处：《草业学报》2024年第10期194-202,共9页Acta Prataculturae Sinica

基　　金：广东省自然基金项目(2020A1515011253);广州市科技计划项目(202102020808)资助。

摘　　要：为了探究不同酶制剂和植物乳杆菌(LP)复合添加对中药渣青贮发酵品质动态变化的影响,以中药渣(黄芪、山药、茯苓与柴胡)为原料,LP与酶[纤维素酶(CE)、果胶酶(PE)、木聚糖酶(XY)]分别组合添加处理,并设置空白对照(CK),青贮3、7、15、34 d后分析其青贮发酵品质。结果表明:所有处理组在青贮34 d后,pH值、酸性洗涤纤维、中性洗涤纤维相比对照组均显著降低(P<0.05),可溶性碳水化合物含量相比对照组显著提高(P<0.05)。综上所述,添加菌酶复合添加剂可显著降低中药渣青贮后中性洗涤纤维、酸性洗涤纤维含量。随着青贮时间的延长,LP+CE处理组能够增加可溶性碳水化合物含量,且LP+CE和LP+PE处理组能够减少氨态氮含量,有效减少蛋白降解,使中药渣青贮品质得到有效改善。The aim of this study was to investigate the effects of adding different enzymes and Lactobacillus plantarum(LP)on the dynamics of silage fermentation and the quality of silage made from Chinese medicine residues.Residues of four Chinese medicine plant species(Astragalus sp.,Dioscoreae rhizome sp.,Poria cocos sp.,and Bupleuri radix sp.)were mixed with different combinations of LP and enzymes[cellulase(CE),pectinase(PE),and xylanase],and the fermentation quality of these silages and a blank control(CK)was analyzed after 3,7,15,and 34 days of ensiling.The results showed that after 34 days of ensiling,the pH value and fiber content were significantly lower(P<0.05),and the soluble carbohydrate content was significantly increased(P<0.05)in the treatment groups compared with CK.The addition LP and enzymes significantly reduced the neutral detergent fiber and acid detergent fiber contents of Chinese medicine crop residues during ensiling.During the ensiling period,the soluble carbohydrate content increased in the LP+CE treatment group,and the amount of ammonia nitrogen was significantly lower in the LP+CE and LP+PE treatment groups than in CK,indicative of a lower rate of protein degradation.Thus,the addition of LP and enzymes effectively improved the quality of silage made from Chinese medicine crop residues.

关 键 词：中药渣 青贮 资源利用 青贮添加剂 发酵品质 

分 类 号：S816.53[农业科学—饲料科学]