期刊
JOURNAL OF APPLIED MICROBIOLOGY
卷 134, 期 1, 页码 -出版社
OXFORD UNIV PRESS
DOI: 10.1093/jambio/lxac006
关键词
enhanced weight gain; gut microflora; insect; Mollicutes; sex-dependent probiotic effect
The study found that incorporating thermophilic bacteria-fermented compost derived from marine animals into the humus can enhance the growth of Hercules beetle larvae, especially the females. This compost alters the gut microflora of the larvae, leading to improved growth.
Aims Hercules beetle is a popular pet and large adult individuals are considered valuable. Incorporating compost prepared from marine animals and fermented by thermophilic bacteria into the humus benefits the gut microflora of several livestock. Here, we evaluated whether this compost improves the growth of the Hercules beetle (Dynastes hercules hercules) larvae. Methods and Results We mixed the compost grains with the humus at a final concentration of 1% (w/w) and transferred similar to 90 days old Hercules beetle larvae to fresh humus with or without the compost. After 72 days rearing period, only the female larvae reared in the humus with compost exhibited superior growth, compared with those grown in compost-free humus. The gut bacterial composition was determined at 0 and 46 day after transferring the larvae to humus with or without compost. Improved growth of the female larvae was associated with increased abundance of Mollicutes and decreased abundance of Gammaproteobacteria. Conclusion The thermophile-fermented compost has a probiotic effect on the female Hercules beetle larvae that is mediated by altered gut microflora.
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