Друковані видання. Кафедра паразитології та ветеринарно-санітарної експертизи
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Publication Morphological characteristics of Dermanyssus gallinae (Mesostigmata, Dermanyssidae)(2025) Yevstafieva, V. O.; Євстаф’єва, Валентина Олександрівна; Petrunenko, A. P.; Петруненко, А. П.; Melnychuk, V. V.; Мельничук, Віталій Васильович; Petrenko, M. O.; Петренко, Максим Олександрович; Korchan, L. M.; Корчан, Леонід Миколайович; Shcherbakova, N. S.; Щербакова, Наталія Сергіївна; Dedukhno, A. V.; Дедухно, Алла Володимирівна; Krasota, O. G.; Красота, Олена ГригорівнаThe red mite Dermanyssus gallinae (De Geer, 1778), a dangerous parasite of poultry which causes significant economic losses to poultry farming, is widespread, including in economically developed countries. These mites are transient blood-sucking parasites that can attack not only birds and other mammals, but also humans, causing itching and dermatitis. A deeper understanding of the morphology and identification of D. gallinae will allow us to avoid complications in their differentiation from similar dermanyssid parasites, which may share the host species and environment. The aim of the research was to describe the morphological features and metric parameters of gamasid mites of the species D. gallinae, isolated from chickens in Ukraine. Morphometric studies have identified 30 parameters in male and 40 indicators in female mites, which characterize the general structure of the body, speciesspecific morphological features, as well as characters of sexual dimorphism. In male and female mites, the structure and dimensions of the body, gnathosoma, idiosoma, tagmas, dorsal shield, specific arrangement of dorsal setae, length of adanal and postanal setae, as well as the distance between sternal setae st1–st1, st2–st2, st3–st3, st1–st2, st1–st3, metasternal setae mst–mst, ventral setae vl1– vl1, adanal setae ad–ad are described. A characteristic feature of females of D. gallinae is the presence of a stylet-like second cheliceral article, while in males there are no cheliceral articles of a stylet-like shape. In males, the dimensions of the sternogenital and ventroanal shields are additionally described and determined. In females, the dimensions of the sternal, genitoventral and anal shields, the genitoventral valve, the length of the setae st1, st2, st3, mst, and the distance between the setae st1–mst were additionally described and determined. For the first time, the dimensions of females with a formed egg in their body cavity were described and compared with the dimensions of female mites without eggs. The data obtained in this study expands existing data on the morphometric characteristics of male and female D. gallinaeItem Morphological Characteristics of Dicrocoelium dendriticum (Digenea, Dicrocoeliidae), Parasitizing Three Host Species in the Central Regions of Ukraine O. V. Kruchynenko(2020) Kruchynenko, O. V.; Mykhailiutenko, S. M.; Klymenko, O. S.; Kanivets, N. S.; Korchan, L. M.; Кручиненко, Олег Вікторович; Корчан, Леонід Миколайович; Михайлютенко, Світлана Миколаївна; Канівець, Наталія СергіївнаItem Morphological features of the causative agent of chorioptic mange isolated from cattle(2024) Melnychuk, V. V.; Kovalenko S.; Yevstafieva, V. O.; Korchan, L. M.; Kone, M. S.; Titarenko, O. V.; Мельничук, Віталій Васильович; Євстаф’єва, Валентина Олександрівна; Корчан, Леонід Миколайович; Коне, Мохамед Сумана; Тітаренко, Олена Вікторівна; Nikiforova O.Providing veterinary care against parasitic diseases is one of the factors that affect the possibility of effective and profitable introduction of the livestock sector. Chorioptic mange is one of the globally spread invasive diseases of cattle caused by persistent ectoparasites. The diagnosis of chorioptosis is based on the microscopic detection of mites in scrapings from the skin of the affected animal with mandatory identification of the parasites. The aim of the research was to investigate the morphological features and metric parameters of Chorioptesmites isolated from cattle. Mites isolated from cattle were morphometrically identified as Chorioptestexanus. Morphological features of male Ch. texanus mites include peculiarities in the structure of the opisthosomal lobes and of the setae located on the opisthosomal lobes, opisthosoma and tarsus of leg III. 14 morphometric parameters characterizing the general structure of the body (length, width and their ratio, length and width of the gnathosoma, length of the idiosoma, proterosoma, podosoma, propodosoma, metapodosoma, hysterosoma, opisthosoma, length and width of the propodosomal shield) were identified and suggested for use in identification of male and female Ch. texanus. In male mites of this species, 5 additional parameters were also determined, which describe the length and width of the opisthomal lobes, their ratio, the diameter of the adanal suckers and the distance between them. The morphological features, location and length of 6 setae, which are species-specific in Chorioptes mites, namely 4 setae of the opisthosomal lobe, 1 opisthosomal seta, 1 ventral seta of tarsus III, were described. The parameters of Ch.texanus eggs in the bodies of female mites and on the body of the host animal were determined. The scientific data obtained in this study expand the already existing data on the differential identification of Ch. texanus mites and proves their parasitism in cattle on the territory of Ukraine