Efeitos da privação alimentar de 48 horas na resposta de fase aguda em cavalos

Autores

DOI:

https://doi.org/10.1590/1809-6891v23e-72445E

Resumo

O objetivo deste estudo foi avaliar o efeito da restrição alimentar na resposta de fase aguda em equinos. Vinte cavalos foram submetidos à restrição alimentar por 48 h enquanto outros 12 animais (controle) tiveram livre acesso à água e alimento. Os animais foram monitorados, examinados e amostras de sangue foram coletadas no início (0) do estudo e com 6, 12, 18, 24, 30, 36, 42 e 48 horas de restrição alimentar. Os dados foram submetidos à análise de variância bidirecional com medidas repetidas e a significância estatística foi P ≤ 0,05. Os cavalos toleraram a restrição alimentar sem complicações clínicas relevantes. A restrição alimentar induziu uma resposta de fase aguda caracterizada pela elevação das concentrações séricas de α2-macroglobulina (24-38 h), ceruloplasmina (36-48 h), α1-antitripsina (30-48 h), α1-glicoproteína ácida (42-48 h) e haptoglobina (42-48 h). A privação de nutrientes eleva os níveis de cortisol circulante, que atua no sistema imunológico inato o qual, então induz a resposta de fase aguda. Em conclusão, a restrição alimentar é um fator estressor físico para equinos, capaz de induzir uma reação proteica de fase aguda, caracterizada pelo aumento na produção de α2-macroglobulina, ceruloplasmina, α1-antitripsina, α1-glicoproteína ácida e haptoglobina.
Palavras-chave: Equinos; Restrição alimentar; Inflamação; Resposta imune; Proteína; Estresse.

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Publicado

2022-08-09

Como Citar

FILIPPO, P. A. D.; DUARTE, B. R.; ALBERNAZ, A. P.; FONSECA , L. A. da; VIANA, I. S.; QUIRINO , C. R. Efeitos da privação alimentar de 48 horas na resposta de fase aguda em cavalos. Ciência Animal Brasileira / Brazilian Animal Science, Goiânia, v. 23, 2022. DOI: 10.1590/1809-6891v23e-72445E. Disponível em: https://revistas.ufg.br/vet/article/view/72445. Acesso em: 22 dez. 2024.

Edição

Seção

MEDICINA VETERINÁRIA