Abstract
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.
Document Type
Article
Publication Date
2000
Digital Object Identifier (DOI)
10.1590/S0102-09352000000100008
Repository Citation
Queiroz-Neto, A.; Carregaro, A. B.; Zamur, G.; Harkins, J Daniel; Tobin, Thomas; Mataqueiro, M. I.; and Gonçalves, S. C., "Effect of amitraz and xylazine on some physiological variables of horses" (2000). Maxwell H. Gluck Equine Research Center Faculty Publications. 75.
https://uknowledge.uky.edu/gerc_facpub/75
Notes/Citation Information
Queiroz-Neto, A., Carregaro, A. B., Zamur, G., Harkins, J. D., Tobin, T., Mataqueiro, M. I., & Gonçalves, S. C. (2000). Effect of amitraz and xylazine on some physiological variables of horses. Arquivo Brasileiro de Medicina Veterinaria e Zootecnia, 52(1), 27-32. https://doi.org/10.1590/S0102-09352000000100008