Anti-pathogenic property of thermophile-fermented compost as a feed additive and its in vivo external diagnostic imaging in a fish model
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| Main Authors: | , , , , , , , , , , |
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| Format: | Preprint |
| Published: |
2025
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| _version_ | 1866917085115842560 |
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| author | Miyamoto, Hirokuni Ito, Shunsuke Suzuki, Kenta Tamachi, Singo Yamada, Shion Nagatsuka, Takayuki Satoh, Takashi Udagawa, Motoaki Miyamoto, Hisashi Ohno, Hiroshi Kikuchi, Jun |
| author_facet | Miyamoto, Hirokuni Ito, Shunsuke Suzuki, Kenta Tamachi, Singo Yamada, Shion Nagatsuka, Takayuki Satoh, Takashi Udagawa, Motoaki Miyamoto, Hisashi Ohno, Hiroshi Kikuchi, Jun |
| contents | Fermentative recycling of organic matter is important for a sustainable society, but the functionality of fermented products needs to be adequately evaluated. Here, we clarify the antipathogenic properties for fish of a compost-type feed additive fermented by thermophilic Bacillaceae using non-edible marine resources as raw materials. After prior administration of the compost extract to seabream as a fish model for 70 days, the mortality rate after 28 days of exposure to the fish pathogen Edwardsiella reached a maximum of 20%, although the rate was 60% without prior administration. Under such conditions, the serum complement activity of seabream increased, and the recovery time after anesthesia treatment was also fasten. Furthermore, the differences in the degree of smoothness and glossiness of the fish body surface depending on the administration were statistically shown by imaging techniques to evaluate the texture and color tone of field photographs. These results suggest that thermophile-fermented compost is effective as a functional feed additive against fish disease infection, and that such conditions can be estimated by body surface analysis. This study provides a new perspective for the natural symbiosis industry, as well as for the utilization of non-invasive diagnosis to efficiently estimate the quality of its production activities |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2503_22916 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Anti-pathogenic property of thermophile-fermented compost as a feed additive and its in vivo external diagnostic imaging in a fish model Miyamoto, Hirokuni Ito, Shunsuke Suzuki, Kenta Tamachi, Singo Yamada, Shion Nagatsuka, Takayuki Satoh, Takashi Udagawa, Motoaki Miyamoto, Hisashi Ohno, Hiroshi Kikuchi, Jun Quantitative Methods Fermentative recycling of organic matter is important for a sustainable society, but the functionality of fermented products needs to be adequately evaluated. Here, we clarify the antipathogenic properties for fish of a compost-type feed additive fermented by thermophilic Bacillaceae using non-edible marine resources as raw materials. After prior administration of the compost extract to seabream as a fish model for 70 days, the mortality rate after 28 days of exposure to the fish pathogen Edwardsiella reached a maximum of 20%, although the rate was 60% without prior administration. Under such conditions, the serum complement activity of seabream increased, and the recovery time after anesthesia treatment was also fasten. Furthermore, the differences in the degree of smoothness and glossiness of the fish body surface depending on the administration were statistically shown by imaging techniques to evaluate the texture and color tone of field photographs. These results suggest that thermophile-fermented compost is effective as a functional feed additive against fish disease infection, and that such conditions can be estimated by body surface analysis. This study provides a new perspective for the natural symbiosis industry, as well as for the utilization of non-invasive diagnosis to efficiently estimate the quality of its production activities |
| title | Anti-pathogenic property of thermophile-fermented compost as a feed additive and its in vivo external diagnostic imaging in a fish model |
| topic | Quantitative Methods |
| url | https://arxiv.org/abs/2503.22916 |