Кафедра паразитології та ветеринарно-санітарної експертизи
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Item DESCRIPTION OF THE NEMATODE DIROFILARIA REPENS (NEMATODA, ONCHOCERCIDAE) PARASITIC IN DOGS IN UKRAINE(2023) Євстаф’єва, Валентина Олександрівна; Yevstafieva, V. O.; Мельничук, Віталій Васильович; Melnychuk, V. V.; Кравченко, Сергій Олександрович; Kravchenko, S. O.; Киричко, Олена Борисівна; Kyrychko, O. B.; Дмитренко, Надія Іванівна; Dmytrenko, N. I.; Сизоненко, Наталія Миколаївна; Syzonenko, N. M.; Опара, Надія Миколаївна; Opara, N. M.Dirofi lariasis is a zoonotic disease of domestic and wild carnivorous animals and humans. Subcutaneous migration of the parasite Dirofi laria repens Railliet & Henry, 1911 can lead to the local swellings with changeable localization. In humans, this parasite can cause the damage of lungs, male genitalia, and eyes. Th e range of D. repens is constantly spreading to new areas, and, considering the zoonotic potential of this parasite, it is important to widen the existing data concerning the morphology of D. repens. Present study provides the morphometric description of nematodes D. repens, obtained from subcutaneous tissue of dogs in Ukraine. Th e aim of this study was to make an accent on the key features for performing the identifi cation of parasites of this species. For males, 27 morphometric traits were identifi ed, characterising the total size of the body and the esophagus, the thickness of the cuticle in the region of the mouth opening, the localisation of the nerve ring and the cloaca, the morphological structure and metric parameters of the spicules, and the length of the tail. For females, 18 morphometric traits were identifi ed that, in addition to the common parameters, characterise cuticle thickness in the region of the vulva, localisation of the vulva and anus, body width in the regions of the anus and vulva, and tail length. Th is report widens the existing data on the morphological and metric characteristics of nematodes D. repensItem Differential characters of fleas of the genus Ctenocephalides (Siphonaptera, Pulicidae) obtained from dogs(2021-05) Yevstafieva, V. O.; Євстаф’єва, Валентина Олександрівна ; Горб, К.О.; Melnychuk, V. V.; Мельничук, Віталій Васильович ; Горб, Олег ОлександровичItem Ectoparasites Ctenocephalides (Siphonaptera, Pulicidae) in the composition of mixed infestations in domestic dogs from Poltava, Ukraine(2020-07) Yevstafieva, V. O.; Євстаф’єва, Валентина Олександрівна ; Горб, К.; Melnychuk, V. V.; Мельничук, Віталій Васильович ; Бахур, Т.; Фещенко, Д.Item Effect of temperature on the survival rates of the embryonic states of development of Trichuris skrjabini nematodes parasitizing sheep(2023-06) Yevstafieva, V. O.; Євстаф’єва, Валентина Олександрівна ; Petrenko, M. O.; Петренко, Максим Олександрович ; Melnychuk, V. V.; Мельничук, Віталій Васильович ; Vakulenko, Y. V.; Вакуленко, Юлія Валентинівна; Бахур-Каваляускене Т.І.; Titarenko, O. V.; Тітаренко, Олена Вікторівна ; Shaferivskyi, B. V.; Шаферівський, Богдан Сергійович ; Pishchalenko, M. A.; Піщаленко, Марина Анатоліївна ; Filonenko, S. V.; Філоненко, Сергій Васильович ; Sheiko, S. V.; Шейко, Сергій ВолодимировичThe 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 environmentItem Efficacy of treatment measures for rabbit passalurosis(2023) Хорольський, А. А.; Євстаф’єва, Валентина Олександрівна; Мельничук, Віталій Васильович; Yevstafieva, V. O.; Melnychuk, V. V.Helminthes of Passalurus ambiguus species are one of the most common parasites of the intestinal tract of domestic rabbits both on industrial rabbit farms and private farms. The most effective way to treat and prevent passalurosis in animals at present is the use of anti-helminthic preparations, where determining the degree of their anti-parasitic effect is a topical direction of research. This will make it possible to raise the effectiveness of maintaining well-being on rabbit farms and the animals’ timely recovery from this infestation. The purpose of the study was to establish the effectiveness of treatment measures for rabbit passalurosis. The research was carried out on a private farm that was unfavorable as to passalurosis and on the basis of the Laboratory of Parasitology of Poltava State Agrarian University. The therapeutic efficacy of Brovermectin 1 % solution (the active substance is ivermectin), Brovalzen powder (the active substance is albendazole), Albendazole 7.5 % suspension (the active substance is albendazole) was tested in case of rabbit spontaneous passalurosis. It was established that on the 7th day of treatment, the indicators of extense-effectiveness and intense-effectiveness were, respectively: of Brovermectin 1 % – 50.0 and 64.31 %, Brovalzen powder – 70.0 and 82.63 %, Albendazole 7.5 % suspension – 60.0 and 60.9 %. On the 14th day of treatment, Brovalzen powder and Albendazole 7.5 % suspension turned out the most effective preparations for rabbit passalurosis, where the indicators of their extense-effectiveness and intenseeffectiveness reached 100.0 %. A lower therapeutic effectiveness was registered when using Brovermectin 1 % solution, which was injected to diseased animals. Its extense-effectiveness and intense-effectiveness made 60.0 and 80.9 %, respectively. Moreover, the indicators of the intensity of passalurous invasion on the 7th and 14th day of treatment were at the level of 4.20±1.27 and 2.50±0.75 eggs, and the indicators of the prevalence of passalurous infection were 50.0 and 40.0 %, respectively. The obtained results of experimental studies allow recommend antihelminthic oral preparations of domestic production Brovalzen powder and Albendazole 7.5 % suspension for effective treatment and prevention of rabbit passalurosisItem Forticept® innovative products’ effectiveness for complex udder hygiene(2020-12) Шевченко, А.Н.; Фещенко, Д.В.; Бахур, Т.І.; Згозинська, О.А.; Yevstafieva, V. O.; Євстаф’єва, Валентина Олександрівна ; Сашук, Р.Н.; Стравський, Є.С.; Антіпов, А.А.; Melnychuk, V. V.; Мельничук, Віталій ВасильовичItem Morphobiological analysis of Trichuris vulpis (Nematoda, Trichuridae), obtained from domestic dogs(2019) Yevstafieva, V. O. ; Євстаф’єва, Валентина Олександрівна; Kravchenko, S. O.; Gutyj, B.; Melnychuk, V. V. ; Мельничук, Віталій Васильович; Kovalenko, P. N.; Volovyk, L. B.; Воловик, Лариса Борисівна; Кравченко, Сергій ОлександровичItem Morphological characteristic of Skrjabinema ovis (Nematoda, Oxyuridae) obtained from domestic sheep(2020-10) Melnychuk, V. V.; Мельничук, Віталій Васильович ; Решетило, О.І.Item 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 МихайлівнаItem Morphological identification of Nematodirus spathiger nematodes (Nematoda, Molineidae) obtained from the small intestine of sheep(2021-05) Melnychuk, V. V.; Мельничук, Віталій Васильович ; Yevstafieva, V. O.; Євстаф’єва, Валентина Олександрівна ; Pishchalenko, M. A. ; Піщаленко, Марина Анатоліївна; Решетило, О.; Антіпов, А.Item Morphological variation of Varroa destructor (Parasitiformes, Varroidae) in different seasons(2020-03) Yevstafieva, V. O.; Євстаф’єва, Валентина Олександрівна ; Залозна, Л.М.; Назаренко, О.С.; Melnychuk, V. V.; Мельничук, Віталій Васильович ; Соболта, А.Г.Item 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 МихайлівнаItem Ovocidal action of glutaraldehyde and benzalkonium chloride mixture on Aonchotheca bovis (Nematoda, Capillariidae) embryogenesis(2020-08) Melnychuk, V. V.; Мельничук, Віталій Васильович ; Юськів, І.Д.; Піщаленко, Марина АнатоліївнаItem Pathogenetic relationship between kidney pathologies and the microcirculatory capillary layer in dogs under the influence of Babesia canis(2023-05) Дубова О.А.; Фещенко Д.В.; Yevstafieva, V. O.; Євстаф’єва, Валентина Олександрівна ; Melnychuk, V. V.; Мельничук, Віталій Васильович ; Дубовий А.А.With babesiosis in dogs, the capillary network is especially strongly affected due to the stimulation of the hemostasis system and the development of thrombus formation in the microvasculature. Acute renal failure and even death of animals are caused by shock phenomena and the syndrome of disseminated intravascular coagulation. Clinical, laboratory (hematological, biochemical, coagulometric, hemodynamic, enzyme immunoassay) methods of research were conducted. Dogs with babesiosis have fever, anemia, and hemoglobinuria, hematologically established anemia, systemic inflammation, thrombotic condition. Hemodynamic parameters determine the state of shock, which in dynamics becomes decompensated and irreversible. The appearance of poikilocytes in the blood of sick dogs indicates significant metabolic disorders in their body. The coagulogram reveals the syndrome of disseminated intravascular coagulation. Syndrome markers significantly changed with a trend to increase during nephropathy. In addition, uremia, hyperuricemia, hyperkalemia, hyponatremia, hyperphosphatemia, creatininemia were found in the sick dogs, which are reliable indicators and determine the development of an acute form of glomerulonephritis and progressive acute renal failure. According to the study of the general biochemical status in animals, hepatopathy in the form of acute hepatitis and pancreatitis, and general intoxication syndrome were established. In our findings: during acute spontaneous babesiosis, dogs developed nephropathy, which has two clinical stages: hemoglobinuria and oliguria/anuria. The pathogenetic basis for the development of glomerulonephritis and acute renal failure is the syndrome of disseminated intravascular coagulation in response to the influence of a pathogen, which causes shock, forming a vicious circle of shock. Under such conditions, renal failure increases and eventually leads to the death of the animal. The studied data will contribute to the expansion of the conceptual understanding of the pathogenesis of canine babesiosis and determine the leading role of complications in the development of kidney failure.Item Prevalence and co-infection of Baruscapillaria genus (Nematoda, Capillariidae) in domestic goose in Ukraine(2020-03) Yevstafieva, V. O.; Євстаф’єва, Валентина Олександрівна ; Єресько, В.І.; Melnychuk, V. V.; Мельничук, Віталій Васильович ; Бахур, Т.І.Item Species-specific features of Aonchoteca bursata and Baruscapillaria obsignata (Nematoda, Capillariidae), infecting domestic chickens (Gallus gallus dom.)(2022-09) Yevstafieva, V. O.; Євстаф’єва, Валентина Олександрівна ; Melnychuk, V. V.; Мельничук, Віталій Васильович ; Бахур, Т.; Нагорна, Л.; Нікіфорова, О.; Яценко, І.; Решетило, О.Item The influence of chemicals on the development and viability of Trichuris vulpis nematode eggs isolated from infested dogs(2023) Євстаф’єва, Валентина Олександрівна; Долгін, Олександр Сергійович; Мельничук, Віталій Васильович; Дедухно, Алла Володимирівна; Піщаленко, Марина Анатоліївна; Красота, Олена Григорівна; Yevstafieva, V. O.; Dolhin, O. S.; Melnychuk, V. V.; Dedukhno, A. V.; Pishchalenko, M. A.; Krasota, O. G.Preventive measures against invasive diseases should be carried out taking into account the peculiarities of the life cycle of helminths.This is especially relevant for geohelmintiases, where the infection is mainly transmitted via environmental objects contaminated with the pathogen at the exogenous stages of the parasite’s development. It has been proven that among the causative agents of nematodoses of the gastrointestinal tract of animals, the eggs of geohelminths of the genus Trichuris are the most resistant to the action of disinfectants. The aim of the research was to establish in laboratory conditions the ovicidal effect of chemicals on the development and viability of Trichuris vulpis nematode eggs isolated from infested dogs. Two disinfectants were tested in vitro, Arquades-plus (dialkyl dimethyl ammonium chloride, dodecyl dimethyl ammonium chloride, tetrasodium salt) and Brovadez-plus (alkyl dimethyl benzyl ammonium chloride, dodecyl dimethyl ammonium chloride). Arquades-plus disinfectant showed a high level of ovicidal efficiency (94.0%) only at the maximum concentration and exposure (2.0%, 60 min), and 4.7% of nematode eggs in the test culture remained viable. Brovadez-plus disinfectant was less effective and did not provide a high level of ovicidal efficiency against Trichuris eggs in the studied concentrations and exposures. Satisfactory and unsatisfactory levels of its ovicidal effect (63.1–77.1% and 2.5–58.9%) were established when using the product in concentrations of 2.0% and 0.5–1.5%, respectively, for exposures of 10–60 min. The disinfestation activity of the preparations was characterized by metric changes in experimental test cultures compared to the control test culture. Under the influence of Arquadesplus at all concentrations, the length of the eggs was greater (by 0.4–2.0%), and the width was smaller (by 0.7–4.9%). Under the influence of Brovadez-plus in concentrations of 1.0–2.0%, the length of the eggs was greater (by 0.5–0.9%), the width was smaller (by 0.3–4.1%). The results of the conducted studies allow us to recommend the Arquades-plus disinfectant in a 2.0% concentration (exposure of 60 minutes) for effective control and prevention of infection of dogs with the causative agent of trichurosisItem The prevalence of gastrointestinal nematodes in sheep (Ovis aries) in the central and south-eastern regions of Ukraine(2020-10-27) Melnychuk, V. V.; Мельничук, Віталій Васильович ; Yevstafieva, V. O.; Євстаф’єва, Валентина Олександрівна ; Бахур, Т.; Антіпов, А.; Фещенко, Д.Item Yeast-rich mannan fractions in duck cultivation: prospects of using(2020-08) Yevstafieva, V. O.; Євстаф’єва, Валентина Олександрівна ; Касьяненко, С.М.; Касьяненко, О.І.; Нагорна, Л.В.; Melnychuk, V. V.; Мельничук, Віталій Васильович ; Лук'янова, Г.О.; Гиренко, І.А.