Abstract
The present study was conducted to determine the prevalence rate, worm load, effects
of strongyles infestation on blood parameters and comparative efficacy of Oxfendazole,
Ivermectin and Pyrantel anthelmintics against strongyles in the horses at Quetta and
suburbs. For this purpose, 100 horses were randomly selected and kept untreated for
anthelmintics for 3 months before commencement of study. Overall, prevalence was
found to be at 48%. Among them, 40 positive horses were randomly divided into 4
groups namely A, B, C and D comprising 10 horses in each group. Group A was treated
with Oxfendazole, group B with Ivermectin, group C with Pyrantel while group D was
kept an untreated (No Anthelmintic). The efficacy of anthelmintics was evaluated on
reduction of eggs per gram (EPG) of the faecal sample on day 7 and 14 post-medication.
The efficacy of Oxfendazole in Group A was 91.43% and 97.14%, efficacy of
Ivermectin was 95.24% and 97.62% whereas efficacy of Pyrantel was 87.18% and
94.87% on day 7th and 14th day post-medication respectively. All the anthelmintics
administered were effective against strongylosis with ivermectin having comparatively
better efficacy followed by oxfendazole and pyrantel. Worm load had direct relation on
blood parameters and its reduction showed significant improvement in total erythrocyte
count (TEC), Haemoglobin (Hgb) and Packed Cell Volume (PCV) on day 7 and 14.
Efficacy of routinely used anthelmintics should be regularly determined through faecal
examination for EPG count to cater for development of resistance.
Muhammad Imran Hyder Baloch, Muhammad Tarique Tunio. (2019) A study on selected anthelmintics on strongylosis along with haematology in horses in Quetta region, Asian Journal of Agriculture and Biology, Volume 7, Issue 4.
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