EFFECTS OF ENDOTOXIN, INTERLEUKIN-1-BETA AND PROSTAGLANDIN INJECTIONS ON FEVER RESPONSE IN BROILERS
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Data
1993-12-01
Autores
Macari, Marcos [UNESP]
Furlan, R. L.
Gregorut, F. P.
Secato, E. R.
Guerreiro, J. R.
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Carfax Publ Co
Resumo
1. The effect of endotoxin, interleukin-1 beta and prostaglandin on fever response was studied in 80 broilers (Hubbard strain). Endotoxin (E. coli, LPS) was injected iv (1.5 mu g/kg) and icv (1.5 mu g/bird); interleukin-1 (human recombinant IL-1 beta, 80 pg/bird) and prostaglandin E(2) (5 mu g/bird) were injected icv. Indomethacin (10 mg/kg, iv) pretreatment was also used before iv endotoxin injection. 2. The results showed that indomethacin was able to block the fever response induced by iv endotoxin injection, and IL-1 beta and PGE(2) were both effective in producing fever when injected icv. These data suggest a prostaglandin-mediated fever response by broilers, and also a strong evidence of the involvement of endogenous pyrogen (interleukin-1) in fever response in birds.
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British Poultry Science. Abingdon: Carfax Publ Co, v. 34, n. 5, p. 1035-1042, 1993.