饲用苎麻与全株玉米混合青贮饲料的酸度分析

The primary investigation on the acidity analysis of silage made with fodder ramie and whole-plant corn

本文以饲用苎麻和全株玉米为青贮原料,主要以挥发性脂肪酸和乳酸作为评价指标,分析了饲用苎麻和全株玉米这两种饲用作物经不同预处理后按不同比例混合青贮时青贮饲料的pH及有机酸生成情况。结果发现,原料青贮前经过一定的机械揉丝预处理,有助于获得较高品质青贮饲料,且在混合青贮时饲用苎麻添加比例不宜高于60∶40。

In this paper,the fodder ramie and whole-plant corn were chosen as the fermented materials of mixture silage,and the pH,organic acid of silage after mixed fermentation by the fodder ramie and whole-plant corn with a different ratio was tested and analyzed with the help of GC and HPLC.The results showed that according to the acidity analysis,the quality of the silage was correspondingly higher when the raw materials were pretreated by a certain mechanical kneading process before fermentation,and the proportion of fodder ramie in raw materials was not higher than 60∶40,which would have a higher probability for producing the high quality silage.