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OJVRTM
Online Journal of Veterinary Research©
(Including Medical and Laboratory Research)
Established 1994
ISSN 1328-925X
Volume 27 (7): 415-419, 2023.
Effect
of pour on ivermectin on natural Toxascaris leonina infestations in street dogs.
MH Khayatnouri DVM PhD, Y Garedaghi
DVM PhD.
Faculty of Veterinary Science, Islamic Azad
University, Iran.
ABSTRACT
Khayatnouri MH, Garedaghi
Y., Effect of pour on ivermectin on natural Toxascaris leonina infestations in
street dogs, Onl J Vet Res., 27 (7): 415-419, 2023. Authors determined effect of pour
on ivermectin on natural Toxascaris leonina infestations in dog. After confirming infestation by
adult worms, 0.5 mg kg Ivermectin pour-on was
administered to 60 street dogs. Feces were subjected to
Willis and MacMaster tests for T leonina eggs at days 1, 7, 21 and 28
days after treatment. We found
13 or 22% of 60 dogs tested for eggs to be infested by Toxascaris leonina with mean egg count of 137. Results showed that prevalence of Toxascaris leonina infestations was 21.7%. Treatment with pour on ivermectin, reduced egg counts 21.2% at day, 43.1 by 7 days,
88.3 by 21 days and 98.5% by 28 days. Contact time of parasite with ivermectin rather than its dose may be more effective
justifying slow release delivery in dogs.
Key words: Toxascaris leonina, ivermectin, pour-on, dog.