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Dietary supplementation with glutamine or glutamic acid for weanling piglets

Authors :
Alessandro Borges Amorim
Mayra Anton Dib Saleh
Gabriela de Mello Miassi
Dirlei Antonio Berto
Source :
Pesquisa Agropecuária Brasileira, Vol 53, Iss 2, Pp 229-237 (2018)
Publication Year :
2018
Publisher :
Embrapa Informação Tecnológica, 2018.

Abstract

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.

Details

Language :
English, Spanish; Castilian, Portuguese
ISSN :
16783921 and 0100204x
Volume :
53
Issue :
2
Database :
Directory of Open Access Journals
Journal :
Pesquisa Agropecuária Brasileira
Publication Type :
Academic Journal
Accession number :
edsdoj.8a7c7ad0f5ae4bfda3de451b77a07dff
Document Type :
article
Full Text :
https://doi.org/10.1590/s0100-204x2018000200012