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ORIGINAL RESEARCH article

Front. Anim. Sci.
Sec. Animal Nutrition
Volume 5 - 2024 | doi: 10.3389/fanim.2024.1459552

Optimization of solid-state fermented corn distillers dried grains with solubles (DDGS): effects on growth performance and tissue morphology in broiler chickens

Provisionally accepted
Yuqing Peng Yuqing Peng 1,2Mengchen Wang Mengchen Wang 1,2Zewei Zheng Zewei Zheng 1,2Lei Wang Lei Wang 1,2Xuelei Zhang Xuelei Zhang 1,2Kang Cheng Kang Cheng 1,2Yong Zhang Yong Zhang 1,2*
  • 1 Henan University of Technology, Zhengzhou, Henan Province, China
  • 2 School of Bioengineering, Henan University of Technology, Henan Zhengzhou, China

The final, formatted version of the article will be published soon.

    In recent years, the use of corn DDGS has alleviated the problem of protein feed shortages to a certain extent; however, its high mycotoxin content seriously restricts its application in feedstuffs. In this study, the conditions of solid-state fermented corn DDGS were optimized to investigate changes in the nutrient composition of solidstate fermented corn DDGS and their effects on the growth performance and histological section of yellow-feathered broilers. The optimal strain ratio for solidstate fermentation was determined by orthogonal testing as 1:1:2 for B. desmois JA3:B. subtilis ANSB01G: and B. subtilis ANSB060, and the response value was the score of the degradation rate of Deoxynivalenol (DON), zearalenone (ZEN), and aflatoxin B1 (AFB1) weighted by 4:4:2. Optimal conditions for the solid-state fermentation of maize DDGS were determined by B-Behnken response surface design:the inoculum amount was 1%, the feed to liquid ratio was 1:1.25, the fermentation temperature was 37°C, and the fermentation time was 29.5 h. The optimal conditions for solid-state fermentation of maize DDGS were as follows: the inoculum amount was 1%, the material-liquid ratio was 1:1.25, the fermentation temperature was 37℃, the fermentation time was 29.5h, and the degradation rates of DON, ZEN, and AFB1 in the fermented maize DDGS were 81.6%, 55.18%, and 41.14%, respectively. Moreover, solid-state fermentation significantly improved the nutrient content, in which the amounts of amino acids, crude ash, and crude fat were significantly increased (P < 0.05) and the content of crude fiber was significantly decreased (P < 0.05). The in vitro digestibility of dry matter, crude protein and crude fiber increased significantly (P < 0.05); in addition, compared with the control group, the addition of fermented maize DDGS significantly increased the daily calorific intake of broiler chickens, the daily weight gain (P < 0.05); heart, liver and intestinal tissues underwent no obvious pathological changes.

    Keywords: Response surface method, mixed bacterial solid fermentation, Corn DDGS, Fermentation quality, Growth, Antioxidant status

    Received: 05 Jul 2024; Accepted: 08 Oct 2024.

    Copyright: © 2024 Peng, Wang, Zheng, Wang, Zhang, Cheng and Zhang. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

    * Correspondence: Yong Zhang, Henan University of Technology, Zhengzhou, 450001, Henan Province, China

    Disclaimer: All claims expressed in this article are solely those of the authors and do not necessarily represent those of their affiliated organizations, or those of the publisher, the editors and the reviewers. Any product that may be evaluated in this article or claim that may be made by its manufacturer is not guaranteed or endorsed by the publisher.