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AML Ribeiro ; CW Canal ; IC Silva ; L Trevizan ; LK Vogt ; RA Pereira ; L Lacerda ;Revista Brasileira de Ciência Avícola 2007, 9 1

Autor: LL Rubin

Fuente: http://www.redalyc.org/


Introducción



Revista Brasileira de Ciência Avícola ISSN: 1516-635X revista@facta.org.br Fundação APINCO de Ciência e Tecnologia Avícolas Brasil Rubin, LL; Ribeiro, AML; Canal, CW; Silva, IC; Trevizan, L; Vogt, LK; Pereira, RA; Lacerda, L Influence of sulfur amino acid levels in diets of broiler chickens submitted to immune stress Revista Brasileira de Ciência Avícola, vol.
9, núm.
1, enero-marzo, 2007, pp.
53-59 Fundação APINCO de Ciência e Tecnologia Avícolas Campinas, SP, Brasil Available in: http:--www.redalyc.org-articulo.oa?id=179713989008 How to cite Complete issue More information about this article Journals homepage in redalyc.org Scientific Information System Network of Scientific Journals from Latin America, the Caribbean, Spain and Portugal Non-profit academic project, developed under the open access initiative Brazilian Journal of Poultry Science Revista Brasileira de Ciência Avícola ISSN 1516-635X Jan - Mar 2007 - v.9 - n.1 - 53 - 59 Influence of sulfur amino acid levels in diets of broiler chickens submitted to immune stress Author(s) ABSTRACT Rubin LL1a Ribeiro AML2b Canal CW2a Silva IC3b Trevizan L3b Vogt LK3b Pereira RA4a Lacerda L4a Several changes in amino acid levels occur during an infection.
As a rule, glycine, taurine and serine levels diminish considerably, while cysteine levels increase.
Such changes may be attributed to the intense consumption of sulfur amino acids (SAA- methionine cysteine) during infectious challenge.
Methionine plays an important role in humoral and cellular immune responses.
It has been suggested that such effect is exerted by intracellular glutathione and cysteine levels.
Four-hundred thirty-two day-old Ross male broiler chickens were fed (from 1 to 42 days of age) three SAA levels in the diet (0.72, 0.82, and 0.92% from 1 to 21 days of age; 0.65, 0.75, and 0.85% from 22 to 42 days of age) and submitted to two immunological stimulus series.
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