一、引言尼日利亚比较干旱的热带稀树草原地带旱季期间,摘食类绒毛山蝗豆[Desmodium velutinum(Willd.)DC.]对牲畜的生存起着重要作用。不幸的是由于过度利用,开辟土地为农田,植树造林,修建道路和建设住宅的结果,这种牧草资源正在逐步耗尽。因此需要保存并开发对这种牧草资源的利用。要完全做到这一点,必须对这一系列 I. INTRODUCTION Desmodium velutinum (Willd.) DC. Plays an important role in the survival of livestock during the dry season in Nigeria’s drier savannah region. Unfortunately, as a result of over-exploitation, the opening up of land to farmland, afforestation, road construction and housing construction, the forage resources are gradually depleted. There is therefore a need to conserve and develop the use of such forage resources. To do this completely, this series must be done