干草调制与贮存技术的研究进展

干草是反刍家畜冬季重要的粗饲料之一,生产优质干草对提高反刍家畜生产性能具有重要意义。近年来国内外都很重视优质干草的调制与贮存技术研究。干草调制技术主要包括机械处理和化学处理2种技术手段,前者是通过机械压裂牧草茎秆,后者是通过喷洒化学干燥剂破坏植物茎叶表面的角质层,二者均是为了加快牧草的水分散失,缩短干燥时间,减少调制过程中营养物质损失;而干草贮存主要是利用化学或微生物防腐剂防止高水分干草腐败变质,提高干草贮藏品质。

Research progress on technologies for hay making and storage

Hay is one of the important roughages for ruminants, and the high quality hay plays an important role on improving ruminant productivity. In resent years, the technologies regarding hay making methods and storage have drawn the attention over the world. The hay making technique mainly includes the mechanical and chemical treatments, the former is to squish the grass stem by mechanical power and the later is to break down cutin on epidermis of stem and leaf. Both of the treatments are to accelerate moisture dissipate and shorten the drying time and decrease the nutrients loss during hay making. Hay storage technique is to prevent deleterious decay with chemical or biologic treatments and improve the hay quality.