The complementary criteria for estimation of horse strongyles resistance to anthelmintics
2004
Vysniauskas, A.(Lithuanian Veterinary Academy, Kaisiadorys (Lithuania). Inst. of Veterinary. Lab. of Parasitology) | Pereckiene, A.(Lithuanian Veterinary Academy, Kaisiadorys (Lithuania). Inst. of Veterinary. Lab. of Parasitology) | Kaziunaite, V.(Lithuanian Veterinary Academy, Kaisiadorys (Lithuania). Inst. of Veterinary. Lab. of Parasitology) | Petkevicius, S.(Lithuanian Veterinary Academy, Kaisiadorys (Lithuania). Inst. of Veterinary. Lab. of Parasitology)
For faecal examinations of helminth eggs and coccidian oocysts the quantitative techniques are used. In most common McMaster technique the eggs of helminths are allowed to flotate in a special counting chamber, which is called the McMaster chamber. We performed study where 7 modifications of McMaster techniques were compared. Our results have shown that four from seven investigated modifications of McMaster technique demonstrated 100% performance. According to the number strongyle eggs per gram (EPG) of faeces it was estimated that Urquhard's modification of McMaster technique have shown most precise egg counts. The coefficients of McMaster technique for recalculating the results of helminth egg counts are described. It was pointed, that the treatment of horse strongyles with pyrantel pamoate showed high efficiency (FECR 99.6%), therefore this anthelmintic, could be used as fenbendazole substitute or alternatively administered with other anthelmintics. Our results have shown that treatment with two different anthelmintics for estimation of horse strongyles resistance to anthelmintics by FECR is more precise compared to treatment with single anthelmintic.
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