Effect of L-glutamine levels in piglets diets challenged with Escherichia coli lipopolysacharides
Journal Title: Revista MVZ Cordoba - Year 2014, Vol 19, Issue 3
Abstract
Objective. To evaluate the effect of different levels of L-glutamine on weaned and immunologically challenged piglets with Escherichia coli lipopolysaccharides (LPS) on performance parameters, serum cortisol and defense cells. Materials and methods. Four levels of L –glutamine were evaluated (0, 1.0, 1.5, 2.0%) as well as the addition, or no addition, of LPS (0.3μg). 96 piglets were used (48 castrated males and 48 females) of Agroceres x PenArlan lineage, with an initial age of 21 days and 6.06±0.852 kg live weight. An experimental design was used on randomized blocks in a factorial setting 4 x 2 (levels of L- glutamine with or without challenge). Results. Cubic effect was shown for daily weight gain of unchallenged animals, and was better with the addition of 0.41% L- glutamine. Feed conversion improved with increased levels of L -glutamine for challenged animals. In the evaluation of defense cells, there was interaction of leukocytes with the levels of L- glutamine and the immune challenge. Eosinophils and lymphocytes showed a quadratic effect for the levels of L –glutamine, with a maximum value of 1.30% and 0.5%, respectively. Conclusions. L -glutamine supplementation of up to 2% in the diet improves feed conversion and favors the immune serum of weaned piglets challenged with LPS of E. coli.
Authors and Affiliations
Arturo Pardo L, Ph. D| Londrina State University, Animal Science Department. Rodovia Celso Garcia Cid, PR 445 Km 380, University Campus. Londrina-Paraná, Brasil., Angela Poveda P, Ph. D *| Federal University of Mato Grosso, Zootechnical Department, Rondonópolis Campus, Rodovia MT-270, Parque Sagrada Familia. Rondonópolis-Mato Grosso, Brasil.Correspondence: angelpov@gmail.com, Caio da Silva, Ph. D| Londrina State University, Animal Science Department. Rodovia Celso Garcia Cid, PR 445 Km 380, University Campus. Londrina-Paraná, Brasil., Andréa dos Santos, Ph. D| Federal University of Mato Grosso, Zootechnical Department, Rondonópolis Campus, Rodovia MT-270, Parque Sagrada Familia. Rondonópolis-Mato Grosso, Brasil., Emerson Venâncio, Ph. D| Londrina State University, Departament of Pathological Science. Rodovia Celso Garcia Cid, PR 445 Km 380, University Campus. Londrina-Paraná, Brasil., Vânia Arantes, Ph. D| Federal University of Mato Grosso, Zootechnical Department, Cuiabá Campus, Av. Fernando Corrêa da Costa, 2367. Cuiabá-Mato Grosso, Brasil., Eduardo Nogueira, Ph. D| Ajinomoto of Brasil. Ajinomoto Animal Nutrition. Rua Joaquim Távora, 845. São Paulo-São Paulo, Brasil.
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