燕麦青干草营养成分分析及活体外瘤胃发酵参数测定

Analysis of Nutrition Components of Green and Dried Grass from Oat and Parameter Determination of Ruminal Ferment in Vitro

以目前内蒙古阴山北麓普遍种植的燕麦青干草为试验材料,通过营养成分分析、活体外消化率测定、活体外发酵产气量测定等试验,与青贮玉米秸、谷草等秸秆饲料进行比较,对燕麦青干草进行营养价值的初步评定。结果表明,燕麦青干草干物质的CP、DMD、OMD、CPD、NDFD及ADFD都要显著高于青贮玉米秸及谷草,其碳水化合物组分含量高或被利用的比例大,且挥发性脂肪酸总量较高,有利于瘤胃发酵的调控。

In the study,the green and dried grass of oat from north of Yin Mountains of Inner Mongolia was selected for the trial material.The initial evaluation of nutritional value of the oat hay was made by analysis of nutritional composition,determination of digestibility and testing of ferment gas production in vitro and comparing corn silage straw and millet straw.The results showed that CP,DMD,OMD,CPD,NDFD and ADFD of the dry matter in the oat hay were all significantly higher than that of the corn silage straw and millet straw,and the content of carbohydrate components or the used ratio also was higher,but the content of the total volatile fatty acids was higher,it will be useful for the control of ruminal fermentation.