摘要
通过对不同含水量苜蓿的干草产量、叶片损失情况及营养价值研究,探讨其与干燥目标含水量之间的相关性,进而为获得高产优质苜蓿干草提供理论依据。结果表明:干燥目标含水量对苜蓿干草产量和营养价值影响很大,在不考虑霉变的情况下,苜蓿干草产量及营养价值与干燥目标含水量成正比,干燥目标含水量为29.34%的苜蓿干草比含水量为14.82%的苜蓿干草产量高41.55%,CP产量高47.10%,干草CP含量高21.87%,胡萝卜素含量高203.97%,NDF和ADF含量低19.65%和15.68%,叶片损失率降低112.85%。
The hay yields,leaf loss and nutritional value of alfalfa in different moisture were studied to discuss the correlation between these indexes and drying target moisture and to provide the theory basis for obtaining high yield and good quality of alfalfa hay.The results showed that the drying target moisture had agreat effect on yields and nutritional value of alfalfa hay.Without considering mildew,the yields and nutritional value of alfalfa hay were proportional to the drying target moisture.The hay yields,CP yields,CP content and carotene content of alfalfa hay with the drying target moisture of 29.34% were higher by 41.55%,47.10%,21.87%and 203.97%than that with the drying target moisture of 14.82%,and the NDF content,ADF content and the leaf loss rate of alfalfa hay were lower by 19.65%,15.68% and 112.85%than that with the drying target moisture of 14.82%.
出处
《中国草地学报》
CSCD
北大核心
2016年第5期26-31,共6页
Chinese Journal of Grassland
基金
中国农业科学院科技创新工程草原非生物灾害防灾减灾团队(CAAS-ASTIP-IGR2015-04)
"十二五"国家科技支撑计划课题(2012BAD13B07)
国家牧草产业技术体系项目(CARS-35)
中央级公益性科研院所基本科研业务费专项资金(中国农业科学院草原研究所1610332015006)资助
