Silage fermentation and ruminal degradation of cassava foliage prepared with microbial additive
Silage fermentation and ruminal degradation of cassava foliage prepared with microbial additive
复制标题
微生物添加剂制备木薯叶的青贮发酵和瘤胃降解
DOI：
10.1186/s13568-019-0906-2
复制
发表时间：
2019-11-09
期刊：
影响因子：
3.7
通讯作者：
Cai, Yimin
中科院分区：
文献类型：
--
作者：
Li, Mao;Zi, Xuejuan;Cai, Yimin
为有效利用热带木薯叶用资源，采用微生物添加剂Chikuso-1(CH1，植物乳杆菌)、雪莲L(SN，鼠李糖)、顶顶菌纤维素酶(CE)、SN+CE和CH1+CE研制了热带木薯叶用青贮料。中国，对海南青贮发酵、化学成分和瘤胃降解进行了研究。用乳酸菌(LAB)和CE配制的CF青贮料保存良好，与对照组相比，乳酸含量高(P<；0.05)，pH值低(P<；0.05)，丁酸含量和NH3-N正斜线总氮含量都较低。添加添加剂的青贮料粗蛋白(CP)含量增加，NDF和ADF含量降低(P<；0.05)。提高了干物质(DM)、粗蛋白质、中性洗涤纤维和酸性洗涤纤维的相对饲料价值和瘤胃降解率。此外，与LAB或CE单独处理相比，LAB和CE组合的发酵品质和瘤胃降解率更好。结果表明，粗纤维可用作反刍动物饲料，乳酸菌与CE联合使用可在青贮料发酵中发挥良好的协同作用。
To effectively utilize the tropical cassava (Manihot esculenta Crantz) foliage (CF) resources, the CF silages were prepared with microbial additives, including Chikuso-1 (CH1, Lactobacillus plantarum), Snow Lact L (SN, L. rhamnosus), Acremonium cellulase (CE), SN + CE and CH1 + CE. Silage fermentation, chemical composition and ruminal degradation were studied in Hainan, China. CF silages prepared with lactic acid bacteria (LAB) and CE were well preserved, with a higher (P < 0.05) lactic acid, a lower (P < 0.05) pH value, butyric acid content and NH3-N forward slash total-N compared with the controls. The additive-treated silages showed increased crude protein (CP) content, but decreased (P < 0.05) NDF and ADF contents. Meanwhile, the additive treatment improved relative feed value and ruminal degradability of dry matter (DM), CP, neutral detergent fiber and acid detergent fiber. In addition, the combination of LAB and CE resulted in better fermentation quality and ruminal degradability compared with LAB or CE single treatment. The results demonstrated that the CF could be prepared as ruminant feed, and the combination of LAB and CE might exert beneficial synergistic effect on silage fermentation.