THE IMPACT OF ECTOPARASIS INFESTATIONS ON SOME HEMATOLOGICAL INDICES IN DUCKS (ANAS PLATYRHYNCHOS DOMESTICUS) FROM THE REPUBLIC OF MOLDOVA

Maria ZAMORNEA, Dumitru ERHAN, Ștefan RUSU, Oleg CHIHAI, Universitatea de Stat din Moldova

Abstract

Parasitological research was conducted in the Central-Southern area of the Republic of Moldova in order to esta-blish the extent and intensity of ectoparasite infestation in domestic palmipeds (ducks). 105 ducks (Anas platyrhyn-chos domesticus) aged 1-2 years were investigated parasitologically, in which infestation with 6 species of ma-lophagous mites (Trinoton querquedulae, Anatoecus icterodes, Anatoecus dentatus, Anaticola crassicornis, Anaticolaanserinum, Menopon obscurum) and one species of gamasid mites (Dermanyssus gallinae) was established.In ducks infested with ectoparasites, a reduction in the number of erythrocytes by 34.0%, in the amount of he-moglobin - by 27.3% and in platelets - by 17.7%, compared to reference values, and the number of leukocytes wereincreased by 10.4%, the level of lymphocytes, decreased by 36.2%. A superiority of monocytes were established,reaching the level of 32.6%. ESR (erythrocyte sedimentation rate) indices were increased by 35.9%, and the numberof eosinophils increased by 31.1%, compared to reference values.Keywords: ducks, ectoparasites, infestations, malophagous, mites, hematological indices, extensiveness.

DOI: https://doi.org/10.59295/sum1(191)2026_8