七、豆科牧草 1.中非银合欢中非银合欢的质量是不令人满意的,它含有相当高的生物碱,这种生物碱是一种有毒物质。对单胃动物(如马、猪等)有伤害作用,促使被毛脱落。对依靠中非银合欢为主食的牛和绵羊,其效果也是如此,食后数月形成甲状腺肿大病。这是因为生物碱阻止了家畜食入的碘在畜体内生理作用的发挥。正因为中非银合欢含有家畜不需要的微量元素,所以许多牧场主有可能远离这些优良牧草而去。但当中非银 Seven, leguminous forage 1. Acacia Central Africa Acacia quality is not satisfactory, it contains a very high alkaloid, this alkaloid is a toxic substance. On monogastric animals (such as horses, pigs, etc.) have an injury effect, prompting the hair off. The same is true for cattle and sheep that depend on Central African Acacia for their staple food, forming a goiter for months after eating. This is because alkaloids prevent the ingestion of iodine by livestock into the physiological role of livestock. Precisely because Acacia contains trace amounts of unwanted livestock, many ranchers are likely to be away from these fine pastures. But when the Central African Bank