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通过饲料里面添加抗生素来探究肠道微生物对瓜实蝇生物学参数及生态化学计量特征的影响,结果表明终浓度为300μg/m L的利福平、氨苄青霉素、庆大霉素和链霉素混合使用,在牛肉膏蛋白胨培养基平板上没有检测到菌落。抗生素处理组瓜实蝇三龄幼虫体重和正常对照组相比,达到了显著性差异,其体内总氮、总磷含量比较也达到了显著性差异,但是氮、磷比值无显著性差异。蛹重和平均羽化率没有表现出明显差异性。表明肠道微生物对瓜实蝇生物学参数和生态化学计量特征有一定的影响。
By adding antibiotics in the feed to explore the biological parameters of gut flies and ecological stoichiometry characteristics of gut microbes, the results showed that the final concentration of 300μg / m L of rifampicin, ampicillin, gentamicin and streptomycin In combination, no colonies were detected on beef extract peptone medium plates. Compared with the normal control group, the body weight of the third instar larvae in the antibiotic treatment group reached significant difference, and the total nitrogen and total phosphorus content in the body also reached a significant difference, but the nitrogen and phosphorus ratio had no significant difference. Pupa weight and average emergence rate did not show significant differences. The results showed that the intestinal microorganisms had certain influence on the biological parameters and ecological stoichiometry of melon flies.