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    郑光明,马丽莎,朱新平,刘毅辉,陈永乐,罗建仁. 平胸龟年龄与生长及雌雄差异的比较[J]. 华南农业大学学报, 2008, 29(3). DOI: 10.7671/j.issn.1001-411X.2008.03.016
    引用本文: 郑光明,马丽莎,朱新平,刘毅辉,陈永乐,罗建仁. 平胸龟年龄与生长及雌雄差异的比较[J]. 华南农业大学学报, 2008, 29(3). DOI: 10.7671/j.issn.1001-411X.2008.03.016
    shu
    ZHENG Guang-ming,MA Li-sha,ZHU Xin-ping,LIU Yi-hui,CHEN Yong-le,LUO Jian-ren. Age and Growth of Platysternon megacephalum (Gay)and Difference in Growth and Morphology Between Males and Females[J]. Journal of South China Agricultural University, 2008, 29(3). DOI: 10.7671/j.issn.1001-411X.2008.03.016
    Citation: ZHENG Guang-ming,MA Li-sha,ZHU Xin-ping,LIU Yi-hui,CHEN Yong-le,LUO Jian-ren. Age and Growth of Platysternon megacephalum (Gay)and Difference in Growth and Morphology Between Males and Females[J]. Journal of South China Agricultural University, 2008, 29(3). DOI: 10.7671/j.issn.1001-411X.2008.03.016
    shu

    平胸龟年龄与生长及雌雄差异的比较

    Age and Growth of Platysternon megacephalum (Gay)and Difference in Growth and Morphology Between Males and Females

      摘要
    • 摘要: 对野生平胸龟年龄与生长及雌雄差异进行了研究,结果表明:体质量、背甲长、背甲宽、腹甲长、腹甲宽、体高均随其年龄的增长而增加,3～4龄时增长速度最快,4～5龄时增长较慢,体质量与年龄的生长方程为m=20.346e0.661 2t.体质量与背甲长、背甲宽、腹甲长、腹甲宽、体高,背甲宽与背甲长、腹甲宽与腹甲长,背甲长与腹甲长呈极显著正相关关系(P<0.01).雌雄性比约为1:1,1、2龄雌雄无显著差异,3龄时雌雄的背甲宽与背甲长比例具有显著性差异(P＜0.05),雌性偏圆形,雄性偏椭圆形;5龄时雌雄头甲宽与背甲长的比例有显著差异(P＜0.05),雌性大于雄性.雌雄在生长方面存在差异,0～1龄时雌雄性生长相当,2、3龄时雄性生长快于雌性,雄性体质量大于雌性,但在4～5龄时雌性生长加快,雌性的体质量是雄性体质量的1.12倍.

       

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