Sources of trophic action on performance and intestinal morphometry of broiler chickens vaccinated against coccidiosis

Autor(es)

Sakamoto, I, M. ^[1] ; Faria, D. E. ^[1] ; Nakagi, V. S. ^[1] ; Murakami, A. E. ^[2]

Afiliação do(s) autor(es)

^[1] Sakamoto, M., I, Univ Sao Paulo, FZEA, Dept Zootecnia, BR-13635900 Pirassununga, SP - Brazil

^[2] Univ Estadual Maringa, Dept Zootecnia, BR-87020900 Maringa, Parana - Brazil

• Tipo de documento: Artigo Científico
• Fonte: Brazilian Journal of Poultry Science; v. 16, n. 4, p. 389-396, OCT-DEC 2014.
• Citações Web of Science: 3

Resumo

The aim of this experiment was to evaluate the effect of sources of trophic action (glutamine alone, glutamine associated with glutamic acid and yeast) associated with vaccination against coccidiosis on the performance and morphometry of the small intestine of broilers. In the trial, 1,200 broiler chicks were distributed according to a completely randomized design with a 3 x 2 + 2 (trophic action x vaccination or not + control - free trophic factor) factorial arrangement, with five replicates of 30 birds each. Vaccination negatively affected performance parameters and the morphometry of the intestinal mucosa, but at the end of the experimental period, among the broilers vaccinated against coccidiosis, the group fed glutamine presented better recovery from epithelial losses of the intestinal mucosa compared with the control groups. Therefore, the dietary supplementation with the evaluated sources of trophic action could be a strategy to enhance the development of broilers submitted to vaccine stress, also considering the economic viability of the productive segment. (AU)

• Processo FAPESP: 06/04655-8 - Influência da glutamina pura ou combinado com ácido glutâmico, e de nucleotídeos nas dietas pré-inicial e inicial sobre o desempenho, desenvolvimento e atividade enzimática da mucosa intestinal em frangos de corte
• Beneficiário: Douglas Emygdio de Faria
• Modalidade de apoio: Auxílio à Pesquisa - Regular