不同饲用玉米品种产量及青贮品质比较分析

Analysis on Silage Production and Nutritional Quality in Different Forage Corn Varieties

为筛选出适宜安徽省种植的饲用玉米品种,进行了10个饲用玉米品种的产量及青贮品质比较研究。结果表明:品种间产量和青贮品质存在显著差异。其中:‘玉草3号’的产量最高,YA473182的产量仅次于‘玉草3号’;YA473182的氨态氮(NH3-N)含量略低于‘玉草3号’,乳酸(LA)含量显著高于‘玉草3号’,发酵品质较好;YA473182的可溶性碳水化合物(WSC)含量及粗蛋白(CP)含量显著高于其他品种,且中性洗涤纤维(NDF)及酸性洗涤纤维(ADF)含量相对较少,饲用品质较好。综合考虑各玉米品种的产量及青贮品质,YA473182和‘玉草3号’最适合安徽省种植利用,‘瑞德2号’和‘豫青3230’也有推广价值。

In order to select forage corn varieties suitable for planting in Anhui Province, silage production and nutritional quality of ten corn cultivars were analyzed. The results showed that there were significant differences in silage production and nutritional quality among the ten varieties. The ＇Yucao 3＇and YA473182 had the highest and second highest silage production, respectively. Although the ammonia nitrogen （NH 3-N） content of YA473182 was slightly lower than that of ＇Yucao 3＇, the lactic acid （LA） content of YA473182 was significantly higher than that of ＇Yucao 3＇ and had better fermentation quality. The contents of water soluble carbohydrates （WSC） and crude protein （CP） of YA473182 were significantly higher than those of the other corn varieties. Additionally, the neutral detergent fiber （NDF） content and acid detergent fiber （ADF） content of YA473182 were relatively low in the corn varieties, indicating that it had better feeding value. To sum up, YA473182 and ＇Yucao 3＇ were the most suitable for planting and spreading, followed by ＇Ruide 2＇ and ＇Yuqing 3230＇ in Anhui Province.