添加蔗糖和甲酸对红麻青贮饲料品质的影响  

Effects of Formic Acid and Sucrose on Kenaf (Hibiscus cannabinus) Silage

作　　者：白杰[1] 李德芳[1] 陈安国[1] 李建军[1] 黄思齐[1] 李辉[1] 唐慧娟[1] 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)

机构地区：[1]中国农业科学院麻类研究所,长沙410205

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)

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.

关 键 词：红麻 青贮饲料 添加剂 

分 类 号：S563.5[农业科学—作物学]