Chen Xinzhu, Li Wenyang, Gao Chengfang, Zhang Xiaopei, Weng Boqi, Cai Yimin
Fujian Academy of Agricultural Sciences, Fuzhou, China.
Japan International Research Center for Agricultural Sciences, Tsukuba, Ibaraki, Japan.
Anim Sci J. 2017 Nov;88(11):1715-1721. doi: 10.1111/asj.12840. Epub 2017 May 30.
We studied silage fermentation of kudzu (KZ), sugarcane top (ST) and their mixtures treated with additives to be able to effectively use available local feed resources. The silages were prepared using KZ, ST, KZ 90% + ST 10%, KZ 80% + ST 20%, KZ 70% + ST 30% and KZ 60% + ST 40%, based on fresh matter (FM). These silages were treated with 10 colony-forming units/g epiphytic lactic acid bacteria (LAB), 5% molasses and 0.02% cellulase of FM. The KZ contained higher crude protein (CP; 14.52%) content and lower levels of neutral detergent fiber (NDF; 62.15%) than those of ST (6.84% CP and 64.93% NDF) based on dry matter (DM). The KZ 60% + ST 40% silage fermented well with a higher (P < 0.05) lactic acid content and lower (P < 0.05) pH than those of the other mixed silages. Silages treated with molasses had lower (P < 0.05) ammonia-N, NDF, acid detergent fiber, and hemi-cellulose contents as well as pH, but higher (P < 0.05) DM, water-soluble carbohydrate, and lactic acid contents, than those of the control, LAB and cellulase treatments. The results confirmed that KZ 60% + ST 40% was the best mixing ratio to prepare silage, and molasses improved silage fermentation and fiber degradation.
我们研究了葛根（KZ）、甘蔗梢（ST）及其添加添加剂处理后的混合物的青贮发酵情况，以便能够有效利用当地现有的饲料资源。青贮饲料是根据鲜物质（FM），使用KZ、ST、KZ 90% + ST 10%、KZ 80% + ST 20%、KZ 70% + ST 30%和KZ 60% + ST 40%制备的。这些青贮饲料用每克10个菌落形成单位的附生乳酸菌（LAB）、5%的糖蜜和占鲜物质0.02%的纤维素酶进行处理。基于干物质（DM），KZ的粗蛋白（CP；14.52%）含量高于ST（6.84% CP），中性洗涤纤维（NDF；62.15%）含量低于ST（64.93% NDF）。KZ 60% + ST 40%青贮饲料发酵良好，乳酸含量较高（P < 0.05），pH值低于其他混合青贮饲料（P < 0.05）。与对照、LAB和纤维素酶处理相比，用糖蜜处理的青贮饲料的氨态氮、NDF、酸性洗涤纤维和半纤维素含量以及pH值较低（P < 0.05），但干物质、水溶性碳水化合物和乳酸含量较高（P < 0.05）。结果证实，KZ 60% + ST 40%是制备青贮饲料的最佳混合比例，糖蜜改善了青贮饲料的发酵和纤维降解。
