人工饮食与木叶对丝虫生长,营养成分和肠道微生物群的影响
Jong Woo Park1, Jeong Sun Park1, Pu Reun Kook1
1Department of Agricultural Biology, National Institute of Agricultural Science, Rural Development Administration, Wanju Gun, Jeollabuk-do, Republic of Korea.
Archives of insect biochemistry and physiology
|November 13, 2025
概括
丝虫 (Bombyx mori) 的人工饮食对生长和肠道健康产生负面影响. 树叶促进了更好的营养代谢和多样化的肠道微生物,与导致失生症的人工饮食不同.
科学领域:
- 动物科学动物科学
- 微生物学 微生物学
- 生物化学 生物化学
背景情况:
- 丝虫 (Bombyx mori) 传统上是在树叶上养的,但为了全年养殖和自动化,正在探索人工饮食.
- 当前的人工饮食导致较低的生理性能和子产量与木叶相比.
研究的目的:
- 为了比较养的丝虫的生长和营养成分,与无抗生素的人工饮食 (ADS) 相比,养了木叶 (ML).
- 在ML,ADS和补充抗生素的人造饮食 (ADSA) 条件下分析丝虫的肠道微生物群.
- 评估饮食对丝虫生理学和肠道微生物生态学的影响.
主要方法:
- 幼虫生长和近距离组成分析 (蛋白质,脂肪).
- 氨基酸分析,包括丝氨基酸指数的计算.
- 用于肠道微生物组分析的16S rRNA amplicon测序.
主要成果:
- 叶养的幼虫表现出更大的蛋白质积累和更高水平的与丝相关的氨基酸 (Gly,Ala,Ser),表明纤维素合成增强.
- 人工饮食养的幼虫的脂肪含量较高,但表现出肠道失调,其中主导的是Enterococcus mundtii,导致微生物多样性减少.
- 叶养的幼虫含有多样化的肠道分类,而抗生素补充的人工饮食群体显示中间形状.
结论:
- 人工饮食显著改变了丝虫的营养代谢,并诱导了肠道微生物群的失调.
- 优化的人工饮食配方和微生物稳定策略 (例如益生菌) 是改善丝虫养殖的必要条件.
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