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稀土铈对牛蛙受精卵孵化及蝌蚪生长的影响

发表时间:2015-12-31  浏览量:1740  下载量:596
全部作者: 张珊珊,胡安胜,郭振滨,王力
作者单位: 空军勤务学院军需系
摘 要: 将一定浓度的稀土铈(Ce)元素加入养殖水体中,观察其对牛蛙受精卵孵化和蝌蚪生长的影响。结果表明:Ce3+的浓度在2.0~6.0 mg/L范围内,孵化率随浓度的增加而递增,孵化时间缩短,蝌蚪成活率有所提高,后肢芽长出时间也缩短;当Ce3+的浓度≥8.0 mg/L时,孵化率及成活率均开始下降,孵化时间及后肢芽长出时间延长。由试验结果可知最佳Ce3+孵化浓度为6.0 mg/L,最佳蝌蚪生长浓度为2.0~6.0 mg/L.
关 键 词: 环境毒理学;铈;牛蛙;受精卵;蝌蚪
Title: Effect of cerium on hatching of fertilized eggs and tadpoles of bullfrogs
Author: ZHANG Shanshan, HU Ansheng, GUO Zhenbin, WANG Li
Organization: Department of Military Supplies, The Air force Institute of Service
Abstract: This study observed the effect of rare earth Ce in water on bullfrog hatching and growth of tadpole fertilized eggs. The results show that with 2.0-6.0 mg/L concentration of Ce3+, the hatching rate increases with the increasing concentration, and the incubation time decreases, the tadpole survival rate increases, and hind limb buds grow time is shortened. When the concentration of Ce3+ is greater than or equal to 8.0 mg/L, the hatching rate and survival rate decreased, and the incubation time and hind limb buds germination time are prolonged, so the best Ce3+ incubation concentration is 6.0 mg/L. Therefore, we conclude that the optimal concentration of tadpoles of is 2.0-6.0 mg/L.
Key words: environmental toxicology; cerium; bullfrog; fertilized eggs; tadpole
发表期数: 2015年12月第24期
引用格式: 张珊珊,胡安胜,郭振滨,等. 稀土铈对牛蛙受精卵孵化及蝌蚪生长的影响[J]. 中国科技论文在线精品论文,2015,8(24):2546-2549.
 
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