益生菌
生物
致病菌
微生物学
肠道菌群
寄主(生物学)
食品科学
生物技术
细菌
生物化学
生态学
遗传学
作者
Zhu Zeng,Xiaoling Tong,Yang Yi,Yuli Zhang,Shuwen Deng,Guizheng Zhang,Fangyin Dai
标识
DOI:10.1016/j.biortech.2024.130821
摘要
Probiotics have attracted considerable attention in animal husbandry due to their positive effect on animal growth and health. This study aimed to screen candidate probiotic strain promoting the growth and health of silkworm and reveal the potential mechanisms. A novel probiotic Pediococcus pentosaceus strain (ZZ61) substantially promoted body weight gain, feed efficiency, and silk yield. These effects were likely mediated by changes in the intestinal digestive enzyme activity and nutrient provisioning (e.g., B vitamins) of the host, improving nutrient digestion and assimilation. Additionally, P. pentosaceus produced antimicrobial compounds and increased the antioxidant capacity to protect the host against pathogenic infection. Furthermore, P. pentosaceus affected the gut microbiome and altered the levels of gut metabolites (e.g., glycine and glycerophospholipids), which in turn promotes host nutrition and health. This study contributes to an improved understanding of the interactions between probiotic and host and promotes probiotic utilization in sericulture.
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