不同配方饲料对番石榴实蝇成虫单雌产卵量及孵化率的影响

Influence of Different Feed Formula on the Fecundity per Female and Hatching Rate of Bactrocera correcta(Bezzi)

以胰蛋白胨、酵母粉、杧果和蔗糖为主要营养成分,配制成A,B,C 3种番石榴实蝇成虫人工饲料,测定不同饲料饲喂番石榴实蝇[Bactrocera correcta（Bezzi）]成虫后的单雌产卵量和卵孵化率。结果表明：A配方饲料的第1代单雌产卵量为（857.40±48.45）粒,与第6代单雌产卵量的（711.83±8.35）粒差异不显著;C配方饲料的第1代单雌平均产卵量为（941.37±46.16）粒,与第6代单雌产卵量的（825.68±16.38）粒差异不显著。A配方饲料的第1代卵的孵化率为（88.17±1.42）%,第6代的孵化率为（85.58±1.58）%,差异不显著;C配方饲料的饲养成虫所产第1代卵的孵化率与第2～4代和第6代的孵化率差异不显著,但与第5代卵的孵化率差异较显著（P〈0.05）。可见,饲料配方A和饲料配方C可作为饲养番石榴实蝇成虫饲料,饲料配方A的饲养效果略强于饲料配方C。

With pancreatic peptone, yeast powder, mango and cane sugar as the main nutrients, which were made into three kinds of artificial feed for Bactrocera correcta （Bezzi） adults. We used single fe- male spawning and hatching rate as indicators to determine the optimal feed formula for B. correcta adult. The results showed that： fed with formula A, the fecundity per female of the 1 st and 6th generations was 857. 40 ±48. 45 and 711.83 ±8.35, respectively; the difference between these two generations was not significant. Fed by formula C, the fecundity per female of the 1st and 6th generations was 941.37±46. 16 and 825.68 ±16. 38 ; the difference between these two generations was also not significant. The hatching rates of the 1^st and 6^th generation of B. correcta which adults fed by formula A were （88. 17± 1.42）% and （85.58 ±1.58）%, respectively and the difference was not significant. As to formula C, the hatching rates of the 1^st , 2^nd , 3^rd, 4^th and 6^th generations were little different, while there was a significant difference between the hatching rates of the 1^st and 5^th generations. So the results of experiment showed that both feed formula A and C could be used as artificial feed for B. correcta （ Bezzi ） adults, and feed formula A was slightly better than feed formula C.