Друковані видання. Кафедра паразитології та ветеринарно-санітарної експертизи

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Browsing Друковані видання. Кафедра паразитології та ветеринарно-санітарної експертизи by Author "Filonenko, S. V."

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    Description of feather mite Proctophyllodes musicus(Acariformes, Proctophyllodidae) obtained from Turdus merula
    (2024) Мельничук, Віталій Васильович; Melnychuk, V. V.; Євстаф’єва, Валентина Олександрівна; Yevstafieva, V. O.; Коломак, Ігор Олегович; Kolomak, I. O.; Філоненко, Сергій Васильович; Filonenko, S. V.; Опара, Надія Миколаївна; Opara, N. M.; Muzyka, D.; Chaplygina, A.
    Feather mites (Acariformes, Astigmata) are a large group of species in which mites of the genus Proctophyllodes Robin, 1868. Analgoidea are among the most common parasites of passerines. These mites are permanent obligate ectoparasites localized on the flight feathers, greater wing coverts, and on the tail. Most species of feather mites are characterized by high host specificity. The taxonomy and fauna of feather mites of the genus Proctophyllodes, and their morphological identification characters in different countries of the world are still a matter of research. The aim of our work was to describe the morphological features and metric parameters of feather mites of the species P. musicus Vitzthum, 1922, isolated from the common blackbird Turdus merula Linnaeus, 1758 in Ukraine. 32 parameters are determined in males and females of P.musicus mites, which characterize both their general structure of the body and sexual dimorphism. The structure and sizes of the body, gnathosoma, idiosoma, prodorsal and hysteronotal shields, epimerites I, setae cp and c3, and the distance between setae of the scapula se–se and si–si are described. In males, the sizes of adanal sucker discs, epigastric shields, genital arch, setae ps2, h3, h2, the distance between setae 4a–4a, g–g, ps3–ps3, ps1–ps1 are additionally described and determined. Lamellae in males are wide, tongueshaped, do not overlap. The aedeagus is short, slightly extending beyond the posterior margin of the genital arch. In female mites, the dimensions of the lobar shield, terminal appendages, and terminal recess are additionally described and determined, taking into account the location of setae ps1, h2, the dimensions of setae cp, c3, h3, h2, the distance between setae h1–h1, the distance between hysteronotal and lobar shields. The mite eggs were measured in the body of the female and on the feathers of the birds. The scientific data obtained in this study expand the already existing data on morphological and metric characters of feather mites of the species P. musicus(Proctophyllodidae) isolated from the common blackbird
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    Effect of temperature on the survival rates of the embryonic states of development of Trichuris skrjabini nematodes parasitizing sheep
    (2023-06) Yevstafieva, V. O.; Petrenko, M. O.; Melnychuk, V. V.; Vakulenko, Y. V.; Titarenko, O. V.; Shaferivskyi, B. S.; Pishchalenko, M. A.; Filonenko, S. V.; Sheiko, S. V.; Євстаф’єва, Валентина Олександрівна ; Петренко, Максим Олександрович ; Мельничук, Віталій Васильович ; Вакуленко, Юлія Валентинівна; Бахур-Каваляускене Т.І.; Тітаренко, Олена Вікторівна ; Шаферівський, Богдан Сергійович ; Піщаленко, Марина Анатоліївна ; Філоненко, Сергій Васильович ; Шейко, Сергій Володимирович
    The prevention of the trichurosis of sheep requires understanding the terms of development of pathogens and their survival in the environment under the influence of abiotic factors. This study was conducted to determine the tolerance to a temperature factor of Trichuris skrjabini nematode eggs isolated from sheep. Trichuris eggs were obtained from the gonads of female nematodes in laboratory conditions and cultivated in a thermostat until the appearance of motile larvae in the eggs at the temperatures of 20°C, 25°C, and 30°C. It was determined that the time of formation of infectious eggs decreases with increasing temperature. The temperature of 25°С was found to be the most favorable for the development of T. skrjabini eggs in laboratory conditions, and 80.3% of eggs with motile larvae formed on the 54th day. Temperatures of 20°С and 30°С were less advantageous to the process of embryogenesis. The motile larvae develop in eggs in 63 days at 20°С and in 45 days at 30°С, and their respective survival rates are 77.0% and 75.3%. The obtained data increase the effectiveness of planning measures to prevent the trichurosis of sheep, taking into account the period of development of the pathogen depending on the temperature of the environment
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    Morphological Characteristics of Parasitic Nematodes Trichuris sylvilagi (Nematoda, Trichuridae)
    (2022-06) Yevstafieva, V. O.; Євстаф’єва, Валентина Олександрівна ; Стибель, В.; Melnychuk, V. V.; Мельничук, Віталій Васильович ; Нагорна, Л.; Dmytrenko, N. I.; Дмитренко, Надія Іванівна ; Titarenko, O. V.; Тітаренко, Олена Вікторівна ; Дубова, О.; Makarets, S.; Макарець, Світлана Володимирівна ; Filonenko, S. V.; Філоненко, Сергій Васильович; Pishchalenko, M. A.; Піщаленко, Марина Анатоліївна; Kone, M. S.; Коне, Мохамед Сумана ; Ilchenko, A.; Ільченко, Алла Михайлівна
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    Observations on the embryonic development of Trichuris sylvilagi (Nematoda, Trichuridae) under laboratory conditions
    (2021-08) Yevstafieva, V. O.; Євстаф’єва, Валентина Олександрівна ; Melnychuk, V. V.; Мельничук, Віталій Васильович ; Нагорна, Л.; Сибель, В.; Гутий, Б.; Яценко, І.; Petrenko, M. O.; Петренко, Максим Олександрович ; Нікіфорова, O.; Filonenko, S. V.; Філоненко, Сергій Васильович; Savenkova, O. O.; Савенкова, Олена Олександрівна ; Tahiltseva, Y. М.; Тагільцева, Яніна Михайлівна