Some animals were treated for 4 wk with no administration.Overt behavior, body weights, food-intake, hematological and hemato-biochemical parameters, organ coefficients, were examined.

• 给药期和停药恢复期，观察动物的一般情况、体重增长、进食量、血液学指标、血生化指标、脏器系数及病理组织学变化等。