Advances in research on solid-state fermented feed and its utilization: The pioneer of private customization for intestinal microorganisms

Lijie Yang, Xiangfang Zeng, Shiyan Qiao, Lijie Yang, Xiangfang Zeng, Shiyan Qiao

Abstract

With sustainable development of biotechnology, increasing attention has been placed on utilization of solid-state fermented feed (SFF). Solid-state fermented feed has been a candidate strategy to alleviate the contradiction between supply and demand of feed resources, ensure food hygiene safety, promoting energy conservation, and emission reduction. In production of SFF, a variety of organic acids, enzymes, vitamins, peptides, and other unknown growth factors are produced, which could affect performance of animals. Solid-state fermented feed produced by different fermentation techniques has great instability on different physiological stages of different animals, which hinders the application and standardized production of SFF. Herein, we summarize the current advances in the role of the characteristics of SFF prepared by different manufacturing technique and its research progress in animal experiments on growth performance, gastrointestinal ecology, and immune system, so as to provide references for further acquiring a relatively perfect set of SFF production and evaluation systems.

Keywords: Gastrointestinal ecology; Growth performance; Immune system; Manufacturing technique; Solid-state fermented feed.

Conflict of interest statement

We declare that we have no financial and personal relationships with other people or organizations that can inappropriately influence our work, and there is no professional or other personal interest of any nature or kind in any product, service and/or company that could be construed as influencing the content of this paper.

© 2021 Chinese Association of Animal Science and Veterinary Medicine. Publishing services by Elsevier B.V. on behalf of KeAi Communications Co. Ltd.

Figures

Fig. 1
Fig. 1
Interactions in fermented feed among micro-organisms present, fermentation parameters, and substrate quantity and quality that influence final end products.
Fig. 2
Fig. 2
The regulation mechanism of Lactobacillus in solid-state fermented feed (SFF) on gastrointestinal ecology.

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