摘要
目的 观察比较丝光绿蝇室内连续饲养的各代生物学特性。 方法 将丝光绿蝇引入室内 ,采用改良的饲养方法对其进行室内连续饲养 ,对其室内第 1～ 5代生活史各期的生长发育、产卵、繁殖等各种生物学特性进行观察分析。 结果 结果经 t检验发现 ,第 3、4代间蛹重、蛹长差异均无显著性 ,但蛹重、蛹长都显著性 >第 2代及第 5代 ;第 2、5代间蛹重及蛹长差异均无显著性。第 1代羽化率显著高于第 2、3、5代 ,第 2～ 5代间羽化率差异无显著性。成虫头宽第 1代均显著 >其第 2～ 5代。第 1、2、4代雄性略多于雌性 ,第 5代雄性稍少于雌性 ,代间比较差异均无显著性。成虫室内第 1代产卵天数显著少于第 2、3、5代 ,与第 4代差异无显著性 ,第 2～ 5代间产卵天数差异均无显著性 ;产卵次数及产卵指数室内第 1～ 5代间均无显著性差异。丝光绿蝇室内各代饲养的生活史各期发育时间 ,卵期第 2～ 5代 <1d,幼虫期 6～ 7d,蛹期 6 d,产卵前期 6～ 7d。 结论 本次实验丝光绿蝇引入室内连续饲养的各代生物学特性比较稳定。
Objective To observe and compare the biological characters of different generations of Lucilia sericata reared in laboratory. Methods The blowfly L. sericata were continuously reared by an artificial diet which mainly made up of wheat bran and fish meal, and biological characters, such as pupal weight, pupal length, emergence rate, adult head width, oviposition time and frequency of oviposition were observed from the first generation to the fifth generation, oviposition index were calculated according to the frequency of oviposition and the number of female individuals. Results After t-test, it was found that pupae of the third and the fourth generations were significantly longer and weightier than the other pupae, no remarkable pupal morphological difference was found between the third and the fourth generations and between the first and the fifth generations. It showed that the first generation emergence rate was significantly higher than the other generations, among the second, the third, the fourth and the fifth generations, no remarkable difference was found about the emergence rate, it also showed that the emergence rate of the third generation was at the low peak of all generations. The adult head width of the first generation was significantly wider than the other generations, it implied that adult size of the blowfly would become small when continuously reared in laboratory. More male individuals were found in the first, the second and the fourth generations except for the fifth generation, but there was no difference about sex ratio among these generations. Oviposition time of the first generation was significantly less than the second, the third, and the fifth generations; there was no significant difference among the second, the third, the fourth, the fifth generations. About the frequency of oviposition and oviposition index, no remarkable difference was found among these generations of the blowfly. Conclusion It suggested that the reared blowfly would have adapted to the laboratory conditions and formed stable oviposition characters.
出处
《中国寄生虫病防治杂志》
CSCD
2003年第3期175-177,共3页
Chinese Journal of Parasitic Disease Control
基金
河南省科技攻关项目部分资助 (No.981 1 60 51 5)
新乡医学院高学历人才基金部分资助。
