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本文作者利用大白鼠及狗观察了长期喂给2,4—二氯苯氧乙酸(简称2,4—D)的影响,并就大白鼠连续三代进行了生殖能力试验。将断奶大白鼠分成五组,每组雌、雄各25只。各组动物的基本饲料中,加入2,4—D 的剂量为0、5、25、125、625和1250毫克/公斤。两年期满后,由1250毫克/公斤组和对照雌雄动物中各选出6只,将其组织进行详细显微镜检查,包括心、肺、肝、脾、肾、胃、肠、睾丸或卵巢等。这两组中其余动物和其他各剂量动物则进行了肝、肾、脾和睾丸或卵巢的检查,其中也包括出现的肿瘤和其他有肉眼可见损害的有关组织。试验结果表明,在存活率方面,摄
The authors observed the effects of long-term exposure to 2,4-D (2,4-D) using rats and dogs, and tested the reproductive capacity of rats for three consecutive generations. The weaned rats were divided into five groups, each group of 25 female and male. The basal diet for each group of animals was dosed with 2,4-D at doses of 0, 5, 25, 125, 625 and 1250 mg / kg. After the two year period, six of the 1250 mg / kg and control hermaphrodites were selected and their tissues were subjected to a detailed microscopic examination including heart, lung, liver, spleen, kidney, stomach, intestine, testis or ovary . The remaining animals and other dose animals in both groups were examined for liver, kidney, spleen and testis or ovary, including the appearance of tumors and other tissues with macroscopic lesions. Test results show that in terms of survival rate, taken