| pH值对东北林蛙卵的孵化率及蝌蚪生长发育的影响 |
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| 引用本文： | 蔡凤坤,苏凤艳,刘海斌,戚磊,卫功庆.pH值对东北林蛙卵的孵化率及蝌蚪生长发育的影响[J].经济动物学报,2007,11(2):100-104. |
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| 作者姓名： | 蔡凤坤 苏凤艳 刘海斌 戚磊 卫功庆 |
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| 作者单位： | 吉林农业大学中药材学院,长春,130118 |
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| 基金项目： | 吉林农业大学博士基金项目 |
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| 摘 要： | 为探索水域pH值对东北林蛙(Rana dybowskii)卵孵化和蝌蚪生长发育的影响,在水温21~23℃的实验室条件下,采用单因子试验方法,研究了水环境不同pH值对东北林蛙卵的孵化率、蝌蚪的日增重、变态率及变态幼蛙初始重的影响。结果表明,受精卵对pH值的适应范围为4~11,孵化率较高的pH值范围为7~9;pH值为6,7,8,9组中的蝌蚪成活率分别为47.95%、48.98%、35.64%和43.64%。在pH值为5.5,6.5,7.5组中,林蛙蝌蚪的变态率分别为94.00%、93.00%和82.00%;变态幼蛙初始重分别为(267.33±46.97)mg、(278.67±37.67)mg和(260.67±35.52)mg。
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| 关 键 词： | 东北林蛙 pH值 孵化率 生长发育 |
| 文章编号： | 1007-7448（2007）02-0100-05 |
| 修稿时间： | 2007-03-28 |
Effect of pH on Hatching Rate and Tadpole Development of Rana dybowskii |
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| CAI Feng-kun,SU Feng-yan,LIU Hai-bin,QI Lei,WEI Gong-qing.Effect of pH on Hatching Rate and Tadpole Development of Rana dybowskii[J].Journal of Economic Animal,2007,11(2):100-104. |
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| Authors: | CAI Feng-kun SU Feng-yan LIU Hai-bin QI Lei WEI Gong-qing |
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| Institution: | College of Chinese Medicinal Materials, Jilin Agricultural University, Changchun 130118, China |
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| Abstract: | In order to investigate the effect of pH on egg hatching and tadpole development of Rana dybowskii under the house temperature of 21-23 ℃ and by the means of one-factor experiment,hatching rate of eggs,live body weight of tadpoles,metamorphosis rate and the body weight of newborn tadpole were studied.The results showed that the proper pH for egg hatching was from 4 to 11 and pH from 7-9 caused higher hatching rates than the others.The survival rates of 47.95%,48.98%,5.65% and 43.64% were obtained in testing groups of pH of 6,7,8 and 9 respectively.In the testing groups of pH of 5.5,6.5 and 7.5,the metamorphosis rates were obtained 94.00%,93.00%and 82.00% respectively,and the body weight of young frog after metamorphosis were(267.33±46.97)mg,(278.67±37.67)mg,(260.67±35.52)mg. |
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| Keywords: | Rana dybowskii pH hatching rate growth |
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