Asociaţii poliparazitare la raţe (Anas platyrhynchos domesticus L. 1758) din zona de Centru a Republicii Moldova [Articol]

Abstract

Parasitological research was carried out to determine the diversity of parasitic agents in ducks (Anas platyrhynchos domesticus L, 1758) aged 1-2 years, during the years 2024-2025. Have been collected 106 biological samples from various private households in the Central region of the Republic of Moldova. The ectoparasites were collected from live birds, according to a new, more informative procedure (Patent MD No. 3441, G2, 2007) and the special method of examination and collection of ectoparasites, according to Dubinina M. Н. (1955). The collected material was subsequently examined using a magnifying glass MBC-9 (ob.14x2) and a microscope Novex Holland B ob. 20-40 WF 10x Din/20mm in the Laboratory of Parasitology and Helminthology of the Institute of Zoology, Moldiva State University. In domestic ducks (Anas platyrhynchos domesticus, L, 1758) infestation with 6 species of malophagous mites was established: Trinoton querquedulae (Linnaeus, 1758), Anatoecus icterodes (Nitzsch, 1818), Anatoecus dentatus (Scopoli, 1773), Anaticola crassicornis (Scopoli, 1763), Anaticola anserinum (Linnae- us, 1758), Menopon obscurum (Piaget, 1880) and with a species of gamazid mites (Dermanyssus gallinae (De Geer, 1778)). The highest level of infestation with malophagous mites was recorded with the species: Anaticola crassicornis (EI - 16.0%), Anatoecus dentatus (EI - 12.0%), followed by a species of gamazid mites (Dermanyssus gallinae - EI -11.0%). The lowest level of infestation was with the species Anatoecus icterodes and Trinoton querquedulae (EI- 1.0%). It was establi- shed that 26.4% of the specimens studied were infested in the form of monoinvasions, and 73.6% - in the form of polyinvasions. Polyparasitic associations consisting of 2 species of parasites in 44.5% of cases, 3 species – 24.3% of cases and 4 species – in 4.8% of cases were established.