Browsing by Author "Yevstafieva, V. O."
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Item An Investigation of Embryo and Eggshell Development in Trichuris suis (Nematoda, Trichuridae) under Laboratory Conditions(2016-06-15) Yevstafieva, V. O.; Євстаф’єва, Валентина Олександрівна ; Юськів, І.Д.; Melnychuk, V. V.; Мельничук, Віталій ВасильовичItem Biological specifics of exogenous development of Oxyuris equi nematodes (Nematoda, Oxyuridae)(2020) Yevstafieva, V. O. ; Євстаф’єва, Валентина Олександрівна; Prykhodko, Y. О.; Kruchynenko, O. V. ; Кручиненко, Олег Вікторович; Mykhailiutenko, S. M.; Михайлютенко, Світлана Миколаївна; Kone, M. S. ; Коне, Мохамед Сумана; Кручиненко, Олег ВікторовичItem Chewing Lice (Order Mallophaga, Suborders Amblycera and Ischnocera) Fauna of Domestic Chicken (Gallus gallus domesticus) in Ukraine(2015-11-26) Євстаф’єва, Валентина Олександрівна ; Yevstafieva, V. O.Item Comparative morphology and biology of nematodes of genus Heterakis (Nematoda, Heterakidae), parasites of the domestic goose (Anser anser) in Ukraine(2018-04-28) Yevstafieva, V. O.; Євстаф’єва, Валентина Олександрівна ; Melnychuk, V. V.; Мельничук, Віталій Васильович ; Нікіфорова, О.В.; Супруненко, Костянтин Володимирович; Корчан, Леонід Миколайович; Локес-Крпука, Т.П.; Негребецький, Ігор Станіславович; Корчан, Микола Іванович; Suprunenko, K. V.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 Differential species characters of Baruscapillaria anserisand B. obsignatanematodes obtained from the domestic goose(Regulatory Mechanism in Biosystems, 2018) Yevstafieva, V. O. ; Євстаф’єва, Валентина Олександрівна; Yeresko, V.I.; Pishchalenko, M. A.; Nagorna, L. V.; Піщаленко, Марина АнатоліївнаThe study presents species composition and abundance of nematodes of the family Capillariidae (Nematoda, Trichocephalida), parasitizing the domestic goose (Anser anser dom. Linnaeus, 1758) in Poltava region, Ukraine. Morphological specifics of adult specimens of collected helminths are examined and new data is obtained for species identification of Capillariidae considering their metric parameters. The pathogens of capillariasis in geese are represented by two species, Baruscapillaria anseris (Madsen, 1945) Moravec, 1982 and B. obsignata(Madsen, 1945) Moravec, 1982 with the former predominant. Prevalence of infection by B. anserisin domestic fowl was up to 46.8%, the abundance index reached 17.9 specimens.Item Differential species traits of Trichostrongylus tenuis (Nematoda, Trichostrongylidae)(2020) Yevstafieva, V. O.; Євстаф’єва, Валентина Олександрівна ; Стародуб, Євген Сергійович; Pysarenko, V. M.; Писаренко, Віктор Микитович; Barabolia, O. V.; Бараболя, Ольга Валеріївна; Нікіфорова, Ольга ВасилівнаItem 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 disinfectants on viability of Trichuris skrjabini eggs.(Regulatory Mechanisms in Biosystems, 2023-05-19) Yevstafieva, V. O. ; Petrenko, M. O. ; Peleno, R.; Nikiforova, O.; Vakulenko, Y. V.; Reshetylo, O.; Kone, M. S. ; Євстаф’єва, Валентина Олександрівна; Петренко, Максим Олександрович; Вакуленко, Юлія Валентинівна; Коне, Мохамед СуманаEffect of disinfectants on viability of Trichuris skrjabini eggs. trichurosis; sheep; embryogeneses; chemical preparations; ovocidal effect; disinfestation. The nematodoses are considered the most numerous group of cosmopolitan diseases among animal and human parasitoses. The representatives of the genus Trichuris attract special attention as pathogens of nematodoses. Their high fecundity, resistance to the influence of environmental factors and the ability to disperse create a serious ecological hazard and the risk of new outbreaks of infestation. The aim of the research was to establish the ovicidal efficiency of modern disinfectants on the embryogenesis of eggs of Trichuris skrjabini nematodes isolated from sheep. In laboratory conditions, two preparations were tested, DZPT-2 (mixture of glutaraldehyde, sodium dodecyl sulfate, essential oil) and Dixclor (mixture of sodium bisulfate, sodium chlorite, sodium percarbonate) at different concentrations and times of exposure. We established that DZPT-2 disinfectant showed a high level of ovicidal efficiency (97.5–100%) against T. skrjabini eggs at 4.5% concentration during exposure for 6–12 h and 5.0% concentration during exposure for 3–12 h. Dixclor showed a high level of ovicidal efficiency (100%) against Trichuris eggs at a concentration of 0.24% for exposures of 12 and 24 hours. Decreasing the concentration of disinfectants reduced the level of their ovicidal efficiency and led to the development of a greater number of viable eggs of T. skrjabini. Degenerative changes in the test cultures of T. skrjabini eggs caused by the tested disinfectants were characterized by the appearance and accumulation of air bubbles under the egg shell, the cessation of embryonic development at the bean-like embryo stage, loosening and resorption of the embryo inside the eggs, thinning and destruction of their shell, deformation of the eggs, and swelling of the egg plugs. Such destructive changes in eggs in experimental test cultures were also confirmed by the indicators of their morphometric parameters. Under the influence of DZPT-2 and Dixclor on the 54th day of cultivation, the length of the eggs was lower by 3.9%, and their width was greater by 4.8–5.1% compared to similar indicators in the control test culture. The obtained results allow one to recommend the tested disinfectants in defined and effective concentrations and exposures for effective control and prevention of trichurosis on livestock farms.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 Efficacy of ultrasound in diagnosis of dirofilariasis in dogs caused by Dirofilaria immitis(2022-11) Yevstafieva, V. O. ; Євстаф’єва, Валентина Олександрівна; Kryvoruchenko, D.; Melnychuk, V. V. ; Мельничук, Віталій Васильович; Nikiforova, O.; Kone, M. S. ; Коне, Мохамед Сумана; Barabolia, O. V.; Бараболя, Ольга ВалеріївнаItem Epizootological monitoring studies of chicken heterakosis spreading on the territory of Poltava region(2023) Євстаф’єва, Валентина Олександрівна; Омельченко, О. В.; Yevstafieva, V. O.; Omelchenko O. V.Poultry breeding is one of the most promising branches of agriculture. Serious losses to this industry are caused by invasion diseases, including chicken heterakosis, which is widespread throughout the world. Heterakises cause pathological changes in the caecum, where various forms of typhlitises and enterohepatitises develop, and at high prevalence of infection, especially in young animals, lead to their death. The causative agent of the disease, Heterakis gallinarum nematode, is a parasitic organism environmentally adapted to the climatic conditions of many geographical zones, which contributes to its wide spreading. The purpose of the research was to investigate chicken heterakosis spreading based on the results of analyzing the reporting documentation of the State Food and Consumer Service in Poltava region during 2018–2023. The conducted monitoring studies have established that in the conditions of the investigated region, the share of heterakosis among contagious poultry diseases makes 7.62 %. Infective poultry diseases account for 8.57 %. At the same time, the share of invasion diseases among poultry virulent pathology reaches 83.81 %. The share of heterakosis among poultry invasion diseases was at the level of 8.33 %, where the share of protozoases was the largest (67.71 %). Nematodoses accounted for a smaller share (18.75 %). Cestodiases were most rarely detected in poultry (5.21 %). Among the protozoan, nematodous and cestodous poultry diseases on the territory of Poltava region, eimeriosis made the largest percentage (67.71 %). Among nematodoses, the share of ascariasis was 16.67 %, capillariasis – 2.08 %. Among cestodoses, drepanidoteniosis was detected, the share of which made 5.21 %. Analyzing the indicators of the prevalence of heterakosis infection found on the territory of poultry farms in Poltava region, it was found that chickens’ infestation rate with heterakosis pathogen ranged from 0.06 to 0.19 % with an average value of 0.1 %. The highest indicators of the prevalence of heterakosis infection were detected in 2019–0.19 %. During 2020–2022, the infestation rates of poultry with heterakises gradually decreased from 0.12 to 0.06 %. The results of monitoring studies point to the relevance of further investigating the epizootological peculiarities of chicken heterakosis on the territory of certain regions of UkraineItem Features of embryonic development of parasitic nematodes of the species Trichuris sylvilagi (Nematoda, Trichuridae)(2021-04) Yevstafieva, V. O.; Євстаф’єва, Валентина Олександрівна; Melnychuk, V. V.; Мельничук, Віталій Васильович; Нагорна, Людмила Володимирівна; Стибель, Володимир Володимирович; Гутий, Богдан Володимирович; Яценко, Іван Володимирович; Petrenko, M. O.; Петренко, Максим Олександрович; Нікіфорова, Ольга Василівна; Filonenko, S. V. ; Філоненко, Сергій Васильович; Savenkova, O. O.; Савенкова, Олена Олександрівна; Tahiltseva, Y. М.; Тагільцева, Яніна МихайлівнаItem Features of exogenous development of Trichuris globulosa (Nematoda, Trichuridae)(2020-10) Yevstafieva, V. O.; Melnychuk, V. V.; Kanivets, N. S.; Dmytrenko, N. I.; Karysheva, L. P.; Filonenko, S. V.; Філоненко, Сергій Васильович; Євстаф’єва, Валентина Олександрівна; Мельничук, Віталій Васильович; Каришева, Людмила ПавлівнаItem Features of the exogenic development of Passalurus ambiguus (Nematoda, Oxyuroidae) at different temperature regimes(2022-03) Yevstafieva, V. O.; Євстаф’єва, Валентина Олександрівна ; Хорольський, А.; Kravchenko, S. O.; Кравченко, Сергій Олександрович ; Melnychuk, V. V.; Мельничук, Віталій Васильович ; Нікіфорова, О.; Решетило, О.Item 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 Mollusks (Gastropoda) as Intermediate Hosts of Cattles’ Trematodes (Trematoda) in Conditions of Dnipro Basin’s Small Ponds (Northern Ukraine)(2019-03-28) Фещенко, Д.В.; Бахур, Т.І.; Biricik, H.S.; Антіпов, А.А.; Згозинська, О.А.; Дубова, О.А.; Yevstafieva, V. O.; Євстаф’єва, Валентина Олександрівна ; Гончаренко, В.П.; Шаганенко, Р.В.; Шаганенко, В.С.; 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 Олександрович
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