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体重250～300g雄性Wistar King系大鼠120只,每组30只分成四组:高浓度组(摄取的饮水含As_2O_3 82.50mg/l)、中浓度组(As_3O_316.50mg/l)、低浓度组(As_2O_3 0.165mg/l)、对照组(饮蒸馏水)。连续投砷约7个月,分别于投与开始后3、7个月和停止后2及4个月时,各组杀8只进行有关观察。停止投砷后各组都给与蒸馏水。生长发育影响:7个月实验期间,投与组和对照组的体重增长无差异。大部分脏器重量
One hundred and twenty male Wistar King rats weighing 250-300 g were divided into four groups: high concentration group (82.50 mg / l As2O3-containing drinking water), medium concentration group (As3O316.50 mg / l), low concentration group (As_2O_3 0.165mg / l), control group (drinking distilled water). Continuous cast arsenic about 7 months, respectively, 3,7 months after the start of administration and 2 and 4 months after the stop, kill 8 in each group for the observation. After stopping the cast arsenic, each group was given distilled water. Growth and Development Effects: There was no difference in weight gain between the two groups during the 7-month experiment. Most organs weight