赵伟华,朱新平,魏成清,陈永乐

• 1:中国水产科学研究院珠江水产研究所
• 2:上海海洋大学水产与生命学院

摘要(Abstract)：

对黄喉拟水龟Mauremys mutica同一种群中3种规格(小型个体783.0 g±55.2 g、中型个体991.3 g±62.3 g和大型个体1248.5 g±122.9 g)母体的繁殖性能进行了研究。结果表明:在繁殖季节,不同规格母体的月产卵量差异较明显,其中小型母体在产卵期首月和末月产卵量所占比例相对较高;3种规格母体的平均产卵量、受精率和孵化率与母体的大小呈正相关,平均窝数与母体大小则呈负相关;窝卵数、卵重、卵宽也与母体规格呈正相关,其中窝卵数的差异极显著(P<0.001)。在代表卵形状的卵长径与短径比值中,小规格母体产的卵略长,但差异不显著;大规格母体产的稚龟则显著大于小规格母体产的稚龟(P<0.05)。本研究结果表明,以大规格母体作为繁殖亲本,可以获得更多的后代。

关键词(KeyWords)： 黄喉拟水龟;母体规格;繁殖性能;稚龟

Abstract:

Keywords:

基金项目(Foundation): 国家重点基础研究发展计划项目(2004CB117401);; 广东省海洋与渔业局重点科技项目(2001A09)

作者(Author): 赵伟华,朱新平,魏成清,陈永乐

DOI: 10.16535/j.cnki.dlhyxb.2009.03.013

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