Effects of incubation temperatures on embryonic development in the Asian yellow pond turtle

文献类型： 外文期刊

第一作者： Zhu, Xin-Ping

作者： Zhu, Xin-Ping;Wei, Chen-Qing;Zhao, Wei-Hua;Du, He-Jun;Chen, Yong-Le;Gui, Jian-Fang

作者机构：

关键词： Asian yellow pond turtle;incubation temperature;white spot;egg-shell;cumulative temperature unit (CTU)

期刊名称：AQUACULTURE （ 影响因子：4.242； 五年影响因子：4.723 ）

ISSN： 0044-8486

年卷期： 2006 年 259 卷 1-4 期

页码：

收录情况： SCI

摘要： The Asian yellow pond turtle, Mauremys mutica (Cantor), is a potential aquaculture target in China owing to the higher values for food and remedy than other species of turtle. In this study, color and morphological changes of fertilized eggs were observed during embryogenesis, and the effects of incubation temperature on embryonic development were analyzed. Both calcium layer and membrane layer are thicker in the middle portion of egg-shell than that in the terminal portion, and become thinner after embryo hatching than before embryonic development. Significant change in the white spot and subsequent white ring on the eggshell occurs during embryonic development. Of five different incubation temperatures used to investigate the effects of incubation temperatures on embryonic development, 29.0 +/- 0.5 degrees C was optimal for embryo survival and development. Moreover, the incubation temperature of 33.0 +/- 0.5 degrees C was harmful effect to embryonic development. The data provide important and useful information for husbandry and management of the Asian yellow pond turtle. (c) 2006 Elsevier B.V. All rights reserved.

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