【摘要】 利用植物显微技术镜检法和食道瘘管法对放牧绵羊采食的高山草原植物成分与嗜食性指数进行分析。结果表明,绵羊在黄草期(10月份)采食植物成分比青草期(7 月份)多,其嗜食性指数在不同时期变幅较大,随着冬季来临,绵羊对草地植物的嗜食性不如青草期强烈,但对某些植物嗜食性是相对稳定的。更多还原

【Abstract】 Esophagus fistula method and microscopic examination technique were used to analysis the botanical composition, and preference index of forage selected by grazing sheep on alpine pasture. The results showed that the plant species selected by grazing sheep in October were more than that in July. The preference index varied in different period. The forage preference of grazing sheep in winter was not as strong as that in summer. But to some forage, the preference index were relatively stable.更多还原