Glutamine for broilers from 21 to 42 days maintained in thermoneutral environment

Authors

  • Érika Martins de Figueiredo Universidade Federal de Viçosa
  • Rita Flávia Miranda de Oliveira Donzele Universidade Federal de Viçosa
  • Juarez Lopes Donzele Universidade Federal de Viçosa
  • Katiene Régia Silva Sousa Universidade Federal de Viçosa
  • Evandro Ferreira Cardoso Universidade Federal de Viçosa
  • Aline Nantes Sélos Universidade Federal de Viçosa
  • Amanda Dione Silva Universidade Federal de Viçosa
  • Rodrigo de Freitas Jacob Universidade Federal de Viçosa

DOI:

https://doi.org/10.5433/1679-0359.2015v36n3p1633

Keywords:

Birds, Gene expression, HSP, Thermal environment.

Abstract

This study was conducted to evaluate the effects of dietary glutamine levels on performance and carcass traits of broilers kept in thermoneutral environment from 21 to 42 days of age. Hundred sixty eight male broilers Cobb® with 21 days of age and initial body weight of 900 ± 4.71 g were allotted in a completely randomized design with four levels of glutamine (0.00, 0.50, 1.00 and 1.50%), seven replicates with six birds each. Performance, relative weights of carcass, breast, thigh and drumstick and mRNA expression of HSP70 were evaluated. Birds were housed in environmental chambers with temperature of 23.2 ±  1.77ºC and relative humidity of 70 ± 5.82% corresponding to a calculated BGHI of 72 ± 2.75, which characterize thermoneutral environment. There was no effect of glutamine on feed intake, weight gain, and feed conversion of broilers. Glutamine had no influence on absolute and relative weights of carcass, breast, thigh, and drumstick of birds. There was not effect of dietary glutamine on mRNA expression of HSP70. Dietary glutamine did not affect performance and carcass traits of broilers from 21 to 42 days of age maintained in thermoneutral environment.

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Author Biographies

Érika Martins de Figueiredo, Universidade Federal de Viçosa

Discente de Mestrado do Curso de Pós-Graduação em Zootecnia, UFV, Viçosa, MG.

Rita Flávia Miranda de Oliveira Donzele, Universidade Federal de Viçosa

Profª Associado, Deptº de Zootecnia, UFV, Viçosa, MG.

Juarez Lopes Donzele, Universidade Federal de Viçosa

Prof. Titular, Deptº de Zootecnia, UFV, Viçosa, MG.

Katiene Régia Silva Sousa, Universidade Federal de Viçosa

Discente de Doutorado do Curso de Pós-Graduação em Zootecnia, UFV, Viçosa, MG.

Evandro Ferreira Cardoso, Universidade Federal de Viçosa

Discente de Mestrado do Curso de Pós-Graduação em Zootecnia, UFV, Viçosa, MG.

Aline Nantes Sélos, Universidade Federal de Viçosa

Discente de Graduação do Curso de Graduação em Medicina Veterinária, UFV, Viçosa, MG.

Amanda Dione Silva, Universidade Federal de Viçosa

Profª Associado, Deptº de Zootecnia, UFV, Viçosa, MG.

Rodrigo de Freitas Jacob, Universidade Federal de Viçosa

Discente de Graduação do Curso de Graduação em Zootecnia, UFV, Viçosa, MG.

Published

2015-06-10

How to Cite

Figueiredo, Érika M. de, Donzele, R. F. M. de O., Donzele, J. L., Sousa, K. R. S., Cardoso, E. F., Sélos, A. N., … Jacob, R. de F. (2015). Glutamine for broilers from 21 to 42 days maintained in thermoneutral environment. Semina: Ciências Agrárias, 36(3), 1633–1642. https://doi.org/10.5433/1679-0359.2015v36n3p1633

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