不同含水量及晒制方法对燕麦青干草品质的影响

Effects of Moisture Contents and Drying Methods on Oat Hay Quality

为筛选优质燕麦青干草的适宜打捆含水量及晒制方法,开展了不同含水量（15％～18％、21％～24％、27％～30％）以及不同晒制方法（就地晾干、草架晾干、水泥地未压扁晾晒、水泥地压扁晾晒）对燕麦青干草品质的影响研究.结果表明：四种晒制方法中,水泥地压扁晾晒（FDC）和水泥地未压扁晾晒（NFDC）在各水分条件下燕麦青干草品质均优于对照,其中FDC处理的燕麦青干草的粗蛋白质、粗脂肪含量在高水分条件下分别为11.16％和2.96％,显著高于对照.由燕麦刈割后在水泥地压扁晾晒至27％～30％含水量再进行打捆,是高寒牧区燕麦青干草调制的最佳处理.

To screen the suitable baling moisture contents and drying methods of high quality oat（Ave- na sativa L. ） hay, a randomized block experiment was carried out to study the effects of moisture contents （15 %～18 %, 21%～24%, 27%～ 30%） and drying methods （local airing, frame airing, non-flattening drying on cement floor, flattening drying on cement floor） on quality of oat hay. The results showed that among 4 drying methods, FDC and NFDC gave better performance, oat hay quality was superior to CK un- der different water contents; and the CP and EE of FDC under high water content reached 11. 16% and 2.96%, respectively, significantly higher than CK. Due to low temperature in fall and winter in alpine pastoral areas, higher water content helped to improve oat hay quality and palatability, meanwhile did not cause mould. In a conclusion, FDC with 27%-30% water content was the optimal treatment of oat hay production in alpine pastoral areas.