TY - JOUR
T1 - Effect of amitraz and xylazine on some physiological variables of horses
AU - Queiroz-Neto, A.
AU - Carregaro, A. B.
AU - Zamur, G.
AU - Harkins, J. D.
AU - Tobin, T.
AU - Mataqueiro, M. I.
AU - Gonçalves, S. C.
N1 - Copyright:
Copyright 2017 Elsevier B.V., All rights reserved.
PY - 2000/2
Y1 - 2000/2
N2 - The effect of the intravenous injection of amitraz (0.1 mg/kg) to horses on cardiac activity, respiratory rate, intestinal motor activity, rectal temperature, sweating and masticating was evaluated and compared to the effect of intravenous administration of xylazine (1mg/kg, iv) on heart rate, respiratory rate and intestinal activity. Amitraz caused a significant decrease in heart activity, respiratory rate and intestinal movements, but these effects were not as pronounced as those caused by xylazine. Amitraz also caused a significant relaxation of the rectal smooth muscle, and an apparent increase in sweating and in the frequency of horses found masticating hay. Rectal temperature was not influenced by amitraz. The results indicated that amitraz, at the dose used, did not cause severe side effects in horses.
AB - The effect of the intravenous injection of amitraz (0.1 mg/kg) to horses on cardiac activity, respiratory rate, intestinal motor activity, rectal temperature, sweating and masticating was evaluated and compared to the effect of intravenous administration of xylazine (1mg/kg, iv) on heart rate, respiratory rate and intestinal activity. Amitraz caused a significant decrease in heart activity, respiratory rate and intestinal movements, but these effects were not as pronounced as those caused by xylazine. Amitraz also caused a significant relaxation of the rectal smooth muscle, and an apparent increase in sweating and in the frequency of horses found masticating hay. Rectal temperature was not influenced by amitraz. The results indicated that amitraz, at the dose used, did not cause severe side effects in horses.
KW - Amitraz
KW - Cardiac activity
KW - Horse
KW - Intestinal activity
KW - Respiratory activity
KW - Xylazine
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U2 - 10.1590/S0102-09352000000100008
DO - 10.1590/S0102-09352000000100008
M3 - Article
AN - SCOPUS:0034384074
SN - 0102-0935
VL - 52
SP - 27
EP - 32
JO - Arquivo Brasileiro de Medicina Veterinaria e Zootecnia
JF - Arquivo Brasileiro de Medicina Veterinaria e Zootecnia
IS - 1
ER -