PREVALENCE AND ANTHELMINTIC EFFICACY OF ABAMECTINAGAINST GASTROINTESTINAL PARASITES IN HORSES
A. MAHFOOZ, M. Z. MASOOD, A. YOUSAF, N. AKHTAR
AND M. A. ZAFAR
Department of Clinical Medicine and Surgery,
University of
Agriculture, Faisalabad-Pakistan
Abstract
The prevalence and anthelmintic efficacy
of Abamectin against gastrointestinal parasites under field conditions
in Faisalabad
(Punjab, Pakistan)
was studied in 100 horses. The overall prevalence of gastrointestinal
parasites was 75%, including Strongylus spp.(50%),
Oxyuris equi (12%),
Parascaris equorum (8%) and mixed infection (5%). Among these
naturally infected animals, 15 were selected. These horses were assigned
to three groups on the basis of prevalent species of gastrointestinal
parasites. Each group had five animals, comprising four treatment horses
and a control horse.Abamectin was evaluated against
these gastrointestinal parasites with a single shot at the dose rate of
0.2 mg/kg body weight administered through subcutaneous route which
resulted in 98% reduction in faecal egg count after day 14
post-treatment. Non-treated horses remained positive for
gastrointestinal parasites. No adverse reactions were observed during
the experimental period. It was concluded that Abamectinis highly effective against gastrointestinal parasites in horses.