EFFECT OF BENDING STRENGTH OF HERBAGE PLANTS ON SELECTIVE GRAZING OF DOMESTIC ANIMALS

为了弄清植物材料的体力与牛和马的放牧行为之间的关系，用草叶进行了试验。在家畜咬人强度与叶片断裂强度的比较中，剪切力可能在植物材料的断裂中起着重要作用。对于严重影响草叶抗弯强度的截面模数的计算，建立了双三角形模型和双抛物线模型，并将其应用于截面模数的计算。

The experiments were carried out using grass leaves in order to clarify the relationship between physical strength of plant materials and grazing behaviour of cattle and horse. In comparison of biting strength per bite by domestic animals with breaking strength of leaves, shearing force may play an important role in breaking plant materials. For a calculation of modulus of section, which seriously affect bending strength of grass leaves, the double triangle model and the double parabolic model were made and applied to a calculation of modulus of section.