| 李闯,汪继超,张杰,史海涛.2013.光周期对四眼斑水龟繁殖影响.动物学杂志,48(2):193-199. |
| 光周期对四眼斑水龟繁殖影响 |
| The Influence of Photoperiod on the Reproduction of Sacalia quadriocellata |
| 投稿时间：2012-10-11 修订日期：2013-01-04 |
| DOI： |
| 中文关键词: 四眼斑水龟 光周期 繁殖 |
| 英文关键词:Sacalia quadriocellata Photoperiod Reproduction |
| 基金项目:国家自然科学基金项目(No.30910103916);国家大学生创新性实验计划项目(No.081165803) |
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| 中文摘要: |
| 为探讨光周期对四眼斑水龟(Sacalia quadriocellata)繁殖的影响,于2008年10月至2009年9月对其进行光周期实验。将39只成体分成短光照组、长光照组和对照组,每个组别中样本量均为7♀、6♂。每月用超声波技术对雌性个体进行卵泡数量、大小的检测,并用X光投射法确定硬壳卵数;每半月对雄性进行录像观察。结果表明:三个实验组卵泡数量和卵泡大小表现出明显的周期性,原始卵泡从8月份开始生长发育,卵泡数量在11月份最多,尺寸在12月份也达到最大值;光周期对雌性卵泡数量和卵泡大小的发育有影响,短光照组检测到的总卵泡数高于长光照组和对照组,其中短光照组卵泡数与对照组卵泡数差异显著(P<0.05),长光照组卵泡尺寸相对于另外2个实验组显著变小(P<0.01);光周期对雌性产卵数和雄性发情强度无影响(P>0.05)。光周期对四眼斑水龟雌雄个体性腺发育的作用不同,缩短光照对雌性繁殖有促进作用,延长光照对雄性发情强度在特定阶段具有一定促进作用。 |
| 英文摘要: |
| We conducted light control experiment on 39 adult Four Eye-spotted Turtle (Sacalia quadriocellata) to determine the influence of photoperiod on the regulation of the seasonal gonadal cycle from October 2008 to September 2009. We divided 39 individuals randomly into 3 groups, short light group (9L:15D, 7♀, 6♂), long light group (15L:9D, 7♀, 6♂) and control group (natural light, 7♀, 6♂) and checked the number and size of follicles and number of shelled eggs by ultrasound technique and by X-ray photography each month. We also made video record on the courtship behavior of male per half-month. Follicles grouth began in August and reached a maximum number in November, with maximum size in December, the result showed the periodic changes of number and size of follicles consistent with previous research. And the results also indicated that photoperiod did influence on the production of the turtles in number and size of follicles, but did not have effect on the courtship behavior of males. The total number of follicles in short control group was larger than that that in control group (LSD P=0.006), but not significant between short and longer light control group (P=0.498), as well as between longer lighter group and control group (P=0.141); the follicle size was shorter in long light group than in control group (P=0.000) and short light group (P=0.002), but not significant difference was found between short and long light control groups. |
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