Abstract

MARTINEZ-AISPURO, José et al. Supplementation of functional amino acids in pig diets and its impact on the intestine. Abanico vet [online]. 2023, vol.13, e204.  Epub Oct 27, 2023. ISSN 2448-6132.  https://doi.org/10.21929/abavet2023.7.

The study aimed to review the importance of the supplementation of functional amino acids (AA) in diets of starting-growing pigs on the intestinal health, development and growth. Functional AAs are those that participate in and regulate key metabolic pathways to improve the health, survival, growth, development, lactation, and reproduction of pigs at some specific physiological stages. During stress periods and critical physiological stages, pigs have a higher dietary requirement for some AAs (1-1.5 % arginine, 1 % glutamate, 0.8-2 % glutamine, 0.5-1 % proline, 0.5-2 % glycine, branched-chain AA, 0.4-0.6 % threonine, 0.12-1 % methionine, and 0.2-0.4 % tryptophan) to achieve the optimum growth performance. The increase of these AA allows maintaining the intestinal health and facilitates the normal functioning of the intestine. The application of the functional AA concept in the diet formulation allows to understand and assess that the extra addition represents a viable option to fortify the immune system and to promote intestinal growth and development. In conclusion, the dietary inclusion of functional AA in young pigs improves intestinal health, development and growth.

Keywords : crystalline amino acids; protein; supplementation.

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