摘要
探讨甲酸和蔗糖两种添加剂对红麻青贮的影响。以刈割后的红麻为青贮原料,添加不同计量的蔗糖(10 g/kg,15 g/kg和20 g/kg)和甲酸(3 m L/kg,6 m L/kg和9 m L/kg),并分别设空白对照,密封青贮60 d后分析。结果显示,添加蔗糖或者甲酸能够显著提高粗蛋白含量(P<0.05)和可溶性碳水化合物含量(P<0.05)降低红麻青贮饲料的PH值,实验组p H均小于4.0,乳酸含量显著增加(P<0.05),氨态氮含量显著降低(P<0.05),实验组均没有检测到丁酸含量,青贮发酵品质良好;且在本实验研究范围内认为,添加20 g/kg的蔗糖得到的红麻青贮饲料的品质优于其他实验组,添加9 m L/kg的甲酸得到的红麻青贮饲料的品质优于其他实验组。
Experiments have been conducted to evaluate the quality of the kenaf silage with addition of sucrose and formic acid in this paper. Harvesting the kenaf after 65 - days growth, ensilage it with sucrose （10 g,/kg, 15 g,/kg and 20 g/kg） or formic acid（3 mL/kg,6 mL/kg and 9 mL/kg） and set control groups. The silage was analyzed after 60 - days storage. The results showed that adding the sucrose or formic acid can significantly increase the crude protein content （ P 〈 0. 05） and soluble carbohydrate con- tent （P 〈 0. 05）. The pH of the kenaf silage of all the treatments was less than 4. O, and lactic acid content increased significantly （ P 〈 0. 05 ）, ammonia nitrogen content decreased significantly （ P 〈 O. 05）, butyric acid was not detected in all of the treatments; the silage fermentation quality was in good condition. Hence, the fermentation quality and nutritive value of kenaf silage were improved with addi- tives of sucrose. The quality of kenaf silage with 20 g/kg of sucrose added is better than other groups and the quality of kenaf silage with 9 mL/kg of formic acid added is better than other groups in the range of this study.
作者
白杰
李德芳
陈安国
李建军
黄思齐
李辉
唐慧娟
BAI Jie LI Defang CHEN Anguo LI Jianjun HUANG Siqi LI Hui TANG Huijuan(Institute of Bast Fiber Crops, Chinese Academy of Agricultural Sciences, Changsha 410205, China)
出处
《中国麻业科学》
2016年第5期212-221,共10页
Plant Fiber Sciences in China
基金
国家麻类产业技术体系(CARS-19-E07)
中国农业科学院科技创新工程(ASTIP-IBFC03)
国家青年自然科学基金(31300240)
