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Functional Molecules of Intestinal Mucosal Products and Peptones in Animal Nutrition and Health

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Recent Advances in Animal Nutrition and Metabolism

Part of the book series: Advances in Experimental Medicine and Biology ((AEMB,volume 1354))

Abstract

There is growing interest in the use of intestinal mucosal products and peptones (partial protein hydrolysates) to enhance the food intake, growth, development, and health of animals. The mucosa of the small intestine consists of the epithelium, the lamina propria, and the muscularis mucosa. The diverse population of cells (epithelial, immune, endocrine, neuronal, vascular, and elastic cells) in the intestinal mucosa contains not only high-quality food protein (e.g., collagen) but also a wide array of low-, medium-, and high-molecular-weight functional molecules with enormous nutritional, physiological, and immunological importance. Available evidence shows that intestinal mucosal products and peptones provide functional substances, including growth factors, enzymes, hormones, large peptides, small peptides, antimicrobials, cytokines, bioamines, regulators of nutrient metabolism, unique amino acids (e.g., taurine and 4-hydroxyproline), and other bioactive substances (e.g., creatine and glutathione). Therefore, dietary supplementation with intestinal mucosal products and peptones can cost-effectively improve feed intake, immunity, health (the intestine and the whole body), well-being, wound healing, growth performance, and feed efficiency in livestock, poultry, fish, and crustaceans. In feeding practices, an inclusion level of an intestinal mucosal product or a mucosal peptone product at up to 5% (as-fed basis) is appropriate in the diets of these animals, as well as companion and zoo animals.

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Acknowledgements

This work was supported by Texas A&M AgriLife Research (H-8200). We thank research associates and students in our laboratory for helpful discussions.

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  1. North American Renderers Association, Alexandria, VA, USA

    Peng Li

  2. Department of Animal Science, Texas A&M University, College Station, TX, USA

    Guoyao Wu

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    Guoyao Wu

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Li, P., Wu, G. (2022). Functional Molecules of Intestinal Mucosal Products and Peptones in Animal Nutrition and Health. In: Wu, G. (eds) Recent Advances in Animal Nutrition and Metabolism. Advances in Experimental Medicine and Biology, vol 1354. Springer, Cham. https://doi.org/10.1007/978-3-030-85686-1_13

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