切碎是茎秆饲料喂饲前的准备工作之一。切碎质量用切碎长度、碎段长度的均匀性和碎段裂开的程度来评定。现有的滚筒式切碎机不能保证茎秆顺着纤维方向裂开,因而对潮湿饲料干燥时的散湿强度产生不利影响。苏联乌里扬诺夫斯克农学院研制成功一种多面、纵横切割的切碎装置(见图)。 Chopping is one of the preparatory work before the stem feed is fed. Chop quality is assessed by the length of cut, the uniformity of the length of the cut, and the degree of fragmentation. The existing drum choppers do not ensure that the stalks are cleaved along the fiber direction, thereby adversely affecting the wet strength of the wet feed when dried. Ulyanovsk Agricultural College in the Soviet Union successfully developed a multi-faceted, cross-cut chopping device (see photo).