环境因子对养殖条件下出蛰的东北林蛙存活和生长的影响  

Influence of Temperature,Humidity and Wind Speed on Survival and Growth of Rana dybowskii out of Hibernation

作　　者：佟庆[1,2] 崔立勇 王洪斌[2] 

机构地区：[1]黑龙江省合江林业科学研究所,佳木斯154002 [2]东北农业大学动物医学学院,哈尔滨150030

出　　处：《动物学杂志》2012年第1期44-50,共7页Chinese Journal of Zoology

基　　金：黑龙江省自然科学基金项目(No.C200948;C201046)

摘　　要：实验通过在设施环境下和控制条件下,研究出蛰温度、湿度及风速3种环境因素对林蛙生长和存活的影响,目的在于探索东北林蛙(Rana dybowskii)适宜的出蛰环境。结果表明:温度是影响东北林蛙出蛰存活和生长的重要因素,当出蛰温度低于16℃,东北林蛙有较高的成活率,而出蛰温度高于20℃,则会引起70%以上的东北林蛙死亡,出蛰期间温度缓慢提高有利于东北林蛙生长和存活。东北林蛙出蛰期间适宜的湿度在80%以上,湿度低于60%则对东北林蛙不利。出蛰环境以无风为好,有风会造成东北林蛙的死亡。在人工养殖过程中,可依据当地、当年的气候来进行出蛰。出蛰当日平均温度宜在15℃以下。We observed survival rate and growth of Brown Frog（Rana dybowskii） who come out of hibernation at different temperature,humidity and wind speed in control experiment condition.Brown Frog who came out of hibernation at lower temperature（15.2℃） had a higher survival rate（88.23% vs.29.71%） and heaver body weight（6.37±1.84 g vs.5.32±1.49 g） than those at higher temperature（19.6℃）.The survival rates of Brown Frog coming out at varied temperature each 3 days（0℃ to 8℃,then 8℃ to 16℃） was 80%,then reduced to 73.33% at varied temperature from 0℃ to 16℃ in 6 days;However,the survival rate decreased to 23.33% and zero when move fogs from 0℃ to 20℃,from 0℃ to 25℃ immediately after they come out.The survival rate reduced with humidity decline,83.2% at humidity 95%,80% at humidity 80%,60% at humidity 60%.Wind speed at 0.4 m/s and 0.8 m/s lead to all the frog died at 7 days and 5 days,while 83.33% frog survived at wind free condition.According to our result the best temperature for frog come out of hibernation should be below 15℃.

关 键 词：东北林蛙 出蛰 环境因子 成活率 

分 类 号：S966.35[农业科学—水产养殖]