| 张德利，游华建，鲁增辉，涂永勤，陈仕江,2021,贡嘎钩蝠蛾交配及生殖力的研究[J].环境昆虫学报,(2):430-435 |
| 贡嘎钩蝠蛾交配及生殖力的研究 |
| Study on the mating and fecundity of Thitarodes gonggaensis |
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| DOI： |
| 中文关键词: 贡嘎钩蝠蛾 交配时长 性比 生殖力 |
| 英文关键词:Thitarodes gonggaensis mating duration sex ratio fecundity |
| 基金项目:重庆市科学技术局技术创新与应用发展专项(cstc2018jscxmsybx0244)；重庆市科学技术局社会事业与民生保障科技创新专项（cstc2017shmsA130017,cstc2017shmszdyf0409,cstc2017shmsA130117)；重庆市科学技术局科研机构绩效激励引导专项（cstc2018jxjl130068） |
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| 中文摘要: |
| 为明确交配时长、性比、密度及温度对贡嘎钩蝠蛾Thitarodes gonggaensis交配、产卵、孵化的影响，研究了不同交配时长、不同性比、不同成虫密度、不同交配温度对成虫交配、生殖力的影响。结果表明，成虫正常交配时长差异较大，交配时长为22~270 min，平均交配时长为90.85 min，均能够完成正常的产卵，平均孵化率达90.83%以上，人为干预交配时长对成虫产卵量没有影响，但对交配40 min以内处理的孵化率显著低于正常交配处理，因此，在繁殖虫种过程中，交配时长不足40 min以内的成虫避免人为干扰交配，导致成虫分开，以保证交配顺利完成；通过控制性比发现，雌雄蛾性比对产卵量无显著影响，但偏雄性组的交配率和孵化率均显著高于性比大于1.25∶1的偏雌性组，在人工饲养过程中，如果雄虫多余雌虫的情况下，交配性比建议维持在1∶1至1∶1.5之间，如果雄虫不足，则可以将已交过的雄虫放回交配箱与未交的雌虫继续交配；成虫密度对产卵量、孵化率没有显著影响，对交配率有一定的影响，密度过高会导致交配率下降；交配温度对成虫的交配时长、产卵量、孵化率均有显著影响，温度≤15℃处理交配成虫后其交配时长、产卵量、孵化率均显著高于温度20℃以上处理，最佳的交配温度维持在10℃条件下，交配时长最长，产卵量、孵化率最高。 |
| 英文摘要: |
| This paper studied the mating and fecundity of Thitarodes gonggaensis under various mating duration, sex ratios, populous density and temperature， to find out the influence of these four variables on the mating, oviposition and hatch of T.gongaensis.Results indicated that the mating duration of adult T.gonggaensis was enormously varied in the range of 22～270 min and the average duration was 90.85 min. When the mating finished naturally, they could normally oviposit regardless of the mating duration with a fecundity of over 90.83% When the mating duration was artificially controlled, the amount of oviposition was not affected, but the hatching rate of the treatment within 40 minutes of mating was obviously lower than natural mating. Therefore, during the breeding process of insect species, the adults with mating duration less than 40 minutes should avoid human interference in mating, leading to the separation of the adults, so as to ensure the successful completion of mating. However, the mating rate and hatching rate of groups with more males than females were significantly higher than those of groups with more females than males whose sex ratio was greater than 1.25∶1. In the process of artificial breeding, if there were more males than females, the mating ratio should be maintained between 1∶1 and 1∶1.5. If there were insufficient males, the mated males could be put back into the mating box and mated with the unmated females. Mating temperature on adult mating duration, spawning, hatching rate have a significant impact, temperature 15℃ or less processing after mating adult mating duration, spawning and hatching rate were significantly higher than the temperature 20℃ above, the best mate temperature to maintain under the condition of 10℃, the mating time the longest, spawning, hatching rate was highest. |
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