北华大学学报（自然科学版）Issue(6)：799-802,4.DOI:10.11713/j.issn.1009-4822.2015.06.025
牛奶对东北林蛙蝌蚪生长发育及变态的影响
Effects of Milk on Tadpole Growth and Metamorphosis in Rana dybowskii
摘要
Abstract
The effects of the milk on tadpole growth and metamorphosis in Rana dybowskii were studied under the water temperature of 21 ~23 ℃ by the means of one-factor experiment. The results showed that the milk had significant effect on the tadpoles growth and metamorphosis. Compared with the blank group of T1 ,the test groups of T2 ,T3 ,T4 which added the milk proved advantage in LBW and relative growth of tadpoles at the age of 23 days. The survival rate and the metamorphosis rate in the test group of T2 were the highest and T4 were the lowest among these groups. The body weights of young frog after metamorphosis among four groups had significant differences each other (P<0. 01). With the increase of the milk added,the body weight of young frog increased, but the start metamorphosis days were delayed and the duration was prolonged. The maximum live weights,the start metamorphosis day and duration and the body weight of young frog after metamorphosis were positively related to the milk,the coefficients were 0. 728,0. 968,1. 000 and 0. 987,respectively. The metamorphosis rate was negatively correlated to the milk,the coefficient was -0. 724. The optimum additive quantity of the milk for tadpoles was from 0. 5 mL to 1. 0 mL per 100 tadpoles.关键词
东北林蛙/牛奶/生长发育/变态/蝌蚪Key words
Rana dybowskii/milk/growth/metamorphosis/tadpole分类
农业科技引用本文复制引用
蔡凤坤,刘凤霞,李卓,张睿,邰志娟,巩振财..牛奶对东北林蛙蝌蚪生长发育及变态的影响[J].北华大学学报（自然科学版）,2015,(6):799-802,4.基金项目
吉林省科技扶贫项目(20111702) （20111702）
