Dietary supplementation with glutamine or glutamic acid for weanling piglets

Authors

  • Alessandro Borges Amorim Universidade Federal de Mato Grosso, Instituto de Ciências Agrárias e Tecnológicas, Avenida dos Estudantes, no 5.005, CEP 78735-902 Rondonópolis, MT.
  • Mayra Anton Dib Saleh Universidade Estadual Paulista Júlio de Mesquita Filho, Departamento de Produção Animal, Rua José Barbosa de Barros, no 1.780, CEP 18610-307 Botucatu, SP.
  • Gabriela de Mello Miassi Universidade Estadual Paulista Júlio de Mesquita Filho, Departamento de Produção Animal, Rua José Barbosa de Barros, no 1.780, CEP 18610-307 Botucatu, SP.
  • Dirlei Antonio Berto Universidade Estadual Paulista Júlio de Mesquita Filho, Departamento de Produção Animal, Rua José Barbosa de Barros, no 1.780, CEP 18610-307 Botucatu, SP.

DOI:

https://doi.org/10.1590/S1678-3921.pab2018.v53.25389

Keywords:

Sus scrofa, additives, anabolic effect, carbon turnover, economic feasibility, stable isotopes

Abstract

The objective of this work was to evaluate the effects of dietary glutamine and glutamic acid supplementation on carbon turnover (δ13C) in the muscles of piglets, on animal performance, and on feed economic feasibility. The diets consisted of: control (C), 1% glutamine (G), and 1% glutamic acid (GA). In experiment I, 111 piglets were used to assess carbon turnover in the Masseter, Psoas major, and Abdominal internal oblique muscles in terms of their isotopic composition and 13C substitution over time. In experiment II, 72 piglets were assigned randomly to blocks (eight replicates per treatment and three animals per experimental unit), in order to evaluate animal performance and feed economic feasibility. The GA diet promoted the best 13C acceleration in the studied muscles. No diet effects were observed on performance variables. The G and GA diets presented higher costs than the C diet. Although supplementation with 1% glutamine or glutamic acid accelerates carbon turnover in the studied muscles, which suggests a faster recovery during post-weaning and proves the anabolic effect of these additives, its use is not economically viable for weanling piglets.

Author Biography

Alessandro Borges Amorim, Universidade Federal de Mato Grosso, Instituto de Ciências Agrárias e Tecnológicas, Avenida dos Estudantes, no 5.005, CEP 78735-902 Rondonópolis, MT.

Instituto de Ciências Agrárias e Tecnológicas

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Published

2018-03-16

How to Cite

Amorim, A. B., Dib Saleh, M. A., Miassi, G. de M., & Berto, D. A. (2018). Dietary supplementation with glutamine or glutamic acid for weanling piglets. Pesquisa Agropecuaria Brasileira, 53(2), 229–237. https://doi.org/10.1590/S1678-3921.pab2018.v53.25389

Issue

Section

ANIMAL SCIENCE