4.7 Article

Fermented soybean meal increases nutrient digestibility via the improvement of intestinal function, anti-oxidative capacity and immune function of weaned pigs

期刊

ANIMAL
卷 16, 期 6, 页码 -

出版社

ELSEVIER
DOI: 10.1016/j.animal.2022.100557

关键词

Animal health; Digestive enzyme; Fermentation; Ileal-cannulated weaned pigs; Nutritional value

资金

  1. National Key Research and Development Program [2021YFD1300201]
  2. Sichuan Science and Technology Program [2020YFN0147, 2021ZDZX0009]
  3. China Agriculture Research System of MOF and MARA [CARS-35]
  4. Ingredient nutritional value evaluation program of MARA [ZR19MAC1, ZR20MAC06]

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The nutritional value of fermented soybean meal (FSBM) was investigated in this study, showing improved nutrient digestibility and beneficial effects on intestinal integrity, anti-oxidative capacity, and immune function.
The nutritional components of fermented soybean meal (FSBM) vary because of the complex process of microbial fermentation. The objective of this study was to investigate the nutritional value of FSBM from two sources and explore the mode of actions of FSBM on the improvement of nutrient digestibility with the measurements of digestive enzymes and serum biomarkers. Eight weaned barrows (initial BW: 14.12 +/- 0.24 kg) equipped with T-cannula in the distal ileum were allotted to a duplicated 4 x 4 Latinsquare design with four experimental diets and four periods. Four experimental diets included a soybean meal control diet, two FSBM diets, and a nitrogen-free diet. The two sources of FSBM increased the contents of CP, amino acid and lactic acid, while decreased the levels of anti-nutritional factors, including glycinin, b-conglycinin and trypsin inhibitors. Compared to soybean meal control diet, both FSBM diets significantly increased the apparent and standardised ileal digestibility of CP and amino acids (P < 0.05), increased the activities of lipase, maltase and invertase in digesta (P < 0.05), increased total antioxidant capacity, activities of glutathione peroxidase and superoxide dismutase, the levels of interleukin-4, IgA, IgG and IgM in serum (P < 0.05), while decreased the levels of diamine oxidase, malondialdehyde, interleukin-6, and interleukin-2 in serum (P < 0.05). Additionally, the standardised ileal digestibility of amino acids were highly correlated with the aforementioned digestive enzymes and health-related serum biomarkers. In summary, FSBM diets showed an improved nutritional value evidenced by the higher nutrient digestibility, which may be partially derived from its beneficial effects on intestinal integrity, anti-oxidative capacity and immune function. (c) 2022 The Author(s). Published by Elsevier B.V. on behalf of The Animal Consortium. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).

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