Pub Date : 2023-04-17DOI: 10.31016/978-5-6048555-6-0.2023.24.331-336
M. Musaev, M. Khalikov
Among the most common and dangerous parasitic diseases of animals and humans is fascioliasis. The most effective against Fasciola is triclabendazole ("Fasinex 5.0%" suspension), imported by Siba-Geigi, which is practically not used in Russia due to its high cost. Considering the huge economic damage caused by fascioliasis, we have developed a new complex preparation using innovative mechanochemical technology based on the substance of triclabendazole "Triclafascid", which is 5 times more active than the substance of triclabendazole against fascioliasis. The drug is an intermolecular complex in the form of an easily flowing solid dispersed powder with a size of 0.1–10 microns. The drug is administered orally once to cattle and sheep for therapeutic and prophylactic purposes for acute and chronic fascioliasis, to sheep at a therapeutic dose of 2.0 mg/kg and to cattle 2.5 mg/kg for the AI, respectively, and 20 and 25 mg /kg for the drug, once individually in the form of an aqueous solution. In case of mass deworming of animals, it is convenient to give the anthelmintic by a group method to 10–20 animals, mixed with mixed feed at a dose of 3.0 mg/kg for the AI (for the preparation 30 mg/kg).
{"title":"METHOD FOR APPLICATION OF TRICLABENDAZOLE COMPLEX \"TRICLAFASCID\" FOR TREATMENT AND PREVENTION OF FASCIOLIASIS IN FARM ANIMALS","authors":"M. Musaev, M. Khalikov","doi":"10.31016/978-5-6048555-6-0.2023.24.331-336","DOIUrl":"https://doi.org/10.31016/978-5-6048555-6-0.2023.24.331-336","url":null,"abstract":"Among the most common and dangerous parasitic diseases of animals and humans \u0000is fascioliasis. The most effective against Fasciola is triclabendazole (\"Fasinex 5.0%\" \u0000suspension), imported by Siba-Geigi, which is practically not used in Russia due to \u0000its high cost. Considering the huge economic damage caused by fascioliasis, we have \u0000developed a new complex preparation using innovative mechanochemical technology \u0000based on the substance of triclabendazole \"Triclafascid\", which is 5 times more active \u0000than the substance of triclabendazole against fascioliasis. The drug is an intermolecular \u0000complex in the form of an easily flowing solid dispersed powder with a size of 0.1–10 \u0000microns. The drug is administered orally once to cattle and sheep for therapeutic and \u0000prophylactic purposes for acute and chronic fascioliasis, to sheep at a therapeutic dose \u0000of 2.0 mg/kg and to cattle 2.5 mg/kg for the AI, respectively, and 20 and 25 mg /kg \u0000for the drug, once individually in the form of an aqueous solution. In case of mass \u0000deworming of animals, it is convenient to give the anthelmintic by a group method \u0000to 10–20 animals, mixed with mixed feed at a dose of 3.0 mg/kg for the AI (for the \u0000preparation 30 mg/kg).","PeriodicalId":22969,"journal":{"name":"THEORY AND PRACTICE OF PARASITIC DISEASE CONTROL","volume":"100 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79142096","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-04-17DOI: 10.31016/978-5-6048555-6-0.2023.24.285-289
N. S. Manikovskaya, L. Nacheva
The study considers morphological and functional features of the intestine of the trematode Parafasciolopsis fasciolaemorpha in the context of its endostation, namely, the bile ducts in the liver of the moose Alces alces (1st order environment), which reveal mechanisms that ensure the parasite adaptation. The intestine of P. fasciolaemorpha is covered with epithelium, while its apical part is represented by thin microvilli, and the basal part contains nuclei and reticular cytoplasm. The epithelium is delimited from parenchyma by a basal membrane of a collagenous nature. Intense bromphenolophilia and toluidinophilia manifested at the apical end of the microvilli indicate the accumulated glycoproteins and involvement in the breakdown of food, as well as in the increase in the enterocyte resistance to antigenic effects of the host and the manifestation of anticoagulant properties. Enterocytes function in analogy with microapocrine secretion, and digestion is mainly parietal (and partially abdominal). The microvilli in the apical part of the intestinal epithelium increase the working surface area and accelerate the processes of parietal digestion with enhancing the trophic processes of the helminth P. fasciolaemorpha to survive in the host organism, which helps small parasites to adapt in the endostation. The study results serve as a clear illustration of the Severtsov-Plate function intensification principle.
{"title":"ON THE SEVERTSOV-PLATE FUNCTION INTENSIFICATION PRINCIPLE BY THE EXAMPLE OF THE INTESTINES OF HEPATIC TREMATODE PARAFASCIOLOPSIS FASCIOLAEMORPHA EJSMONT, 1932 (PLATHELMINTHES, TREMATODA)","authors":"N. S. Manikovskaya, L. Nacheva","doi":"10.31016/978-5-6048555-6-0.2023.24.285-289","DOIUrl":"https://doi.org/10.31016/978-5-6048555-6-0.2023.24.285-289","url":null,"abstract":"The study considers morphological and functional features of the intestine of \u0000the trematode Parafasciolopsis fasciolaemorpha in the context of its endostation, \u0000namely, the bile ducts in the liver of the moose Alces alces (1st order environment), \u0000which reveal mechanisms that ensure the parasite adaptation. The intestine of P. \u0000fasciolaemorpha is covered with epithelium, while its apical part is represented by thin \u0000microvilli, and the basal part contains nuclei and reticular cytoplasm. The epithelium \u0000is delimited from parenchyma by a basal membrane of a collagenous nature. Intense \u0000bromphenolophilia and toluidinophilia manifested at the apical end of the microvilli \u0000indicate the accumulated glycoproteins and involvement in the breakdown of food, as \u0000well as in the increase in the enterocyte resistance to antigenic effects of the host and \u0000the manifestation of anticoagulant properties. Enterocytes function in analogy with \u0000microapocrine secretion, and digestion is mainly parietal (and partially abdominal). The microvilli in the apical part of the intestinal epithelium increase the working \u0000surface area and accelerate the processes of parietal digestion with enhancing the \u0000trophic processes of the helminth P. fasciolaemorpha to survive in the host organism, \u0000which helps small parasites to adapt in the endostation. The study results serve as a \u0000clear illustration of the Severtsov-Plate function intensification principle.","PeriodicalId":22969,"journal":{"name":"THEORY AND PRACTICE OF PARASITIC DISEASE CONTROL","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89836034","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-04-17DOI: 10.31016/978-5-6048555-6-0.2023.24.156-161
N. Golovchenko, V. O. Telicheva, I. Khutoryanina, S. A. Nagorniy, L. Ermakova, G. V. Strelnikova
The optimization of laboratory diagnostic methods is one of the important trend in the diagnostics of gastrointestinal parasitic diseases. Direct biological material research methods aimed at detection of helminth eggs and larvae, trophozoites and protozoan cysts remain the "gold standard" for diagnosing intestinal helminthiasis and protozoosis. Detection of pathogens in biological media does not require additional research methods. Currently, various parasitological diagnostic methods are presented in regulatory and methodological documents but the choice of a research method is often determined by capabilities of a medical organization. The purpose of this research was a comparative analysis of the effectiveness of existing methods for detecting helminth eggs. In an experiment, we carried out 1500 examinations of biological material using 5 parasitological methods most commonly used in clinical practice for examining feces, namely, formalin-ether sedimentation, native and stained smear, Kato, Kalantaryan, and sedimentation in the concentrator of intestinal parasites. Ascaris lumbricoides eggs served as a model for the experiment. Each method was applied in 30 repetitions. The results of the study showed that the formalin-ether sedimentation method was the most effective for detecting Ascaris eggs. This method can serve as a reference for evaluating the effectiveness of various modifications of parasitological methods for diagnosing intestinal helminthiasis.
{"title":"ANALYSIS OF EFFECTIVENESS OF LABORATORY DIAGNOSTIC METHODS OF INTESTINAL HELMINTHIASIS BY THE EXAMPLE OF ASCARIS LUMBRICOIDES","authors":"N. Golovchenko, V. O. Telicheva, I. Khutoryanina, S. A. Nagorniy, L. Ermakova, G. V. Strelnikova","doi":"10.31016/978-5-6048555-6-0.2023.24.156-161","DOIUrl":"https://doi.org/10.31016/978-5-6048555-6-0.2023.24.156-161","url":null,"abstract":"The optimization of laboratory diagnostic methods is one of the important trend \u0000in the diagnostics of gastrointestinal parasitic diseases. Direct biological material \u0000research methods aimed at detection of helminth eggs and larvae, trophozoites and \u0000protozoan cysts remain the \"gold standard\" for diagnosing intestinal helminthiasis \u0000and protozoosis. Detection of pathogens in biological media does not require \u0000additional research methods. Currently, various parasitological diagnostic methods \u0000are presented in regulatory and methodological documents but the choice of a \u0000research method is often determined by capabilities of a medical organization. The \u0000purpose of this research was a comparative analysis of the effectiveness of existing \u0000methods for detecting helminth eggs. In an experiment, we carried out 1500 \u0000examinations of biological material using 5 parasitological methods most commonly \u0000used in clinical practice for examining feces, namely, formalin-ether sedimentation, \u0000native and stained smear, Kato, Kalantaryan, and sedimentation in the concentrator \u0000of intestinal parasites. Ascaris lumbricoides eggs served as a model for the experiment. \u0000Each method was applied in 30 repetitions. The results of the study showed that the \u0000formalin-ether sedimentation method was the most effective for detecting Ascaris \u0000eggs. This method can serve as a reference for evaluating the effectiveness of various \u0000modifications of parasitological methods for diagnosing intestinal helminthiasis.","PeriodicalId":22969,"journal":{"name":"THEORY AND PRACTICE OF PARASITIC DISEASE CONTROL","volume":"57 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87484506","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-04-17DOI: 10.31016/978-5-6048555-6-0.2023.24.40-45
F. Akramova, U. Shakarbaev, A. Akbarov, J. K. Ubbiniyazova, M. Toremuratov, K. Saparov, D. Azimov
Northwestern Uzbekistan occupies a large area in the lower reaches of the Amu Darya. The region is distinguished by peculiar natural and climatic conditions. Most species of wild artiodactyls of the order Artiodactyla are represented here, and sheep, goats and cattle are also raised here. However, the helminth fauna of the study groups of mammals in North-Western Uzbekistan covering the territories of the Khorezm Region and the Republic of Karakalpakstan remains poorly studied to date. We have studied some features of the helminth fauna in domesticated and wild cavicornians, Bovidae Gray, 1821, of North-Western Uzbekistan. The species composition of helminths of the studied animals consisted of 26 species belonging to 3 classes, Cestoda, Trematoda and Nematoda. The helminth fauna of cavicornians turned out to be uneven. Twenty six species of parasitic worms were recorded in cattle, 23 species in sheep, 17 species in goats, 15 species in saigas, and 16 species in goitered gazelles. The total helminth infection rate was 100% in sheep, 75% in goats, 95.0% in cattle, 55.0% in saigas and 61.5% in goitered gazelle. The intensity of invasion in the studied animals ranged from single to several dozen specimens. At the same time, in most cases, mixed invasions of various combinations were detected.
{"title":"HELMINTH FAUNA OF CAVICORNIANS (ARTIODACTYLA: BOVIDAE) IN NORTH-WESTERN UZBEKISTAN","authors":"F. Akramova, U. Shakarbaev, A. Akbarov, J. K. Ubbiniyazova, M. Toremuratov, K. Saparov, D. Azimov","doi":"10.31016/978-5-6048555-6-0.2023.24.40-45","DOIUrl":"https://doi.org/10.31016/978-5-6048555-6-0.2023.24.40-45","url":null,"abstract":"Northwestern Uzbekistan occupies a large area in the lower reaches of the Amu \u0000Darya. The region is distinguished by peculiar natural and climatic conditions. \u0000Most species of wild artiodactyls of the order Artiodactyla are represented here, \u0000and sheep, goats and cattle are also raised here. However, the helminth fauna of the \u0000study groups of mammals in North-Western Uzbekistan covering the territories of \u0000the Khorezm Region and the Republic of Karakalpakstan remains poorly studied \u0000to date. We have studied some features of the helminth fauna in domesticated and \u0000wild cavicornians, Bovidae Gray, 1821, of North-Western Uzbekistan. The species \u0000composition of helminths of the studied animals consisted of 26 species belonging to \u00003 classes, Cestoda, Trematoda and Nematoda. The helminth fauna of cavicornians \u0000turned out to be uneven. Twenty six species of parasitic worms were recorded in \u0000cattle, 23 species in sheep, 17 species in goats, 15 species in saigas, and 16 species \u0000in goitered gazelles. The total helminth infection rate was 100% in sheep, 75% in \u0000goats, 95.0% in cattle, 55.0% in saigas and 61.5% in goitered gazelle. The intensity of \u0000invasion in the studied animals ranged from single to several dozen specimens. At the \u0000same time, in most cases, mixed invasions of various combinations were detected.","PeriodicalId":22969,"journal":{"name":"THEORY AND PRACTICE OF PARASITIC DISEASE CONTROL","volume":"48 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85298197","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-04-17DOI: 10.31016/978-5-6048555-6-0.2023.24.204-208
R. Karmaliev, B. Sidikhov, I. N. Zhubantaev
Opisthorchiasis foci are most common among population and carnivores in river basins where there are favorable conditions for mollusks and cyprinids. For the first time the comparative analysis of domestic carnivores infected by O. felineus was carried out in the Middle Urals basin. The research purpose was to study the infection rate in domestic carnivores with opisthorchiasis to determine its invasive status in the West Kazakhstan Region. The research was conducted in 2021–2022, in the following West Kazakhstan Region riverside settlements of the Ural River: Daryinsk, Rubyozhka, Yanvartsevo, Volodarka, Trekino, etc. To determine opisthorchis infection in the carnivores, helminthological examination of feces was performed by sequential washing and flotation methods according to Scherbovich, as well as helminthological dissection of the liver per K. I. Skryabin. The epizootological status of the Middle Urals basin is unfavorable in terms of opisthorchis infection. It was found that, the average prevalence of O. felineus infection in dogs was 89.7%, and the infection intensity was 19.6±1.6 specimens/animal in the settlements of the River Ural. The average prevalence in cats was 97.9%, and the infection intensity was 34.4±2.9 specimens/animal. Epizootological status of the Middle Urals basin is unfavorable in terms of opisthorchis infection. The domestic carnivores in the settlements of the Ural River are infected with O. felineus.
{"title":"OPISTHORCHIASIS IN CARNIVORES IN THE WEST KAZAKHSTAN REGION","authors":"R. Karmaliev, B. Sidikhov, I. N. Zhubantaev","doi":"10.31016/978-5-6048555-6-0.2023.24.204-208","DOIUrl":"https://doi.org/10.31016/978-5-6048555-6-0.2023.24.204-208","url":null,"abstract":"Opisthorchiasis foci are most common among population and carnivores in river \u0000basins where there are favorable conditions for mollusks and cyprinids. For the first \u0000time the comparative analysis of domestic carnivores infected by O. felineus was \u0000carried out in the Middle Urals basin. The research purpose was to study the infection \u0000rate in domestic carnivores with opisthorchiasis to determine its invasive status in \u0000the West Kazakhstan Region. The research was conducted in 2021–2022, in the \u0000following West Kazakhstan Region riverside settlements of the Ural River: Daryinsk, \u0000Rubyozhka, Yanvartsevo, Volodarka, Trekino, etc. To determine opisthorchis \u0000infection in the carnivores, helminthological examination of feces was performed \u0000by sequential washing and flotation methods according to Scherbovich, as well as \u0000helminthological dissection of the liver per K. I. Skryabin. The epizootological \u0000status of the Middle Urals basin is unfavorable in terms of opisthorchis infection. \u0000It was found that, the average prevalence of O. felineus infection in dogs was 89.7%, \u0000and the infection intensity was 19.6±1.6 specimens/animal in the settlements of the \u0000River Ural. The average prevalence in cats was 97.9%, and the infection intensity \u0000was 34.4±2.9 specimens/animal. Epizootological status of the Middle Urals basin \u0000is unfavorable in terms of opisthorchis infection. The domestic carnivores in the \u0000settlements of the Ural River are infected with O. felineus.","PeriodicalId":22969,"journal":{"name":"THEORY AND PRACTICE OF PARASITIC DISEASE CONTROL","volume":"29 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88457581","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-04-18DOI: 10.31016/978-5-6046256-9-9.2022.23.45-49
Andreyanov
The research purpose was to identify helminth infections caused by the Opisthorchidae family in the American mink in its natural habitats. The material for this work was helminths collected from carcasses of the American mink during 2011–2021. We mashed up the liver in warm physiological saline, opened the cavity of the gallbladder and bile ducts with ophthalmic scissors, allowed to stand and examined the residue for trematode eggs and helminth marita. The detected flat worms were differentiated using the identification guide by D. P. Kozlov (1977). A total of 32 fur animals were studied during the reporting period. As a result of the research, 3 species of opisthorchides were identified. Pseudamphistomum truncatum was detected in 18 animals (56.3%). Areas contaminated by helminths were detected in the Ryazan Region. Metorchis albidus was found in minks in two cases (6.3%) with an infection rate of 6 and 11 trematodes per animal. Сontaminated territories were recorded in the Vladimir and Ryazan Regions. An Opisthorchis felineus pathogen was found in one mink (3.2%) in the Ryazan Region. Functional foci of trematodiases of the American mink were detected in the Central region of Russia (Vladimir and Ryazan Region). Pathogens of trematode infections of the family Opisthorchidae were recorded in the gallbladder of the animal's liver.
本研究的目的是在美国水貂的自然生境中鉴定由opisthorchidae科引起的寄生虫感染。这项工作的材料是从2011 - 2021年期间从美国水貂尸体上收集的蠕虫。我们把肝脏放在温生理盐水中捣碎，用眼科剪刀切开胆囊和胆管的腔，让它站起来检查残留的虫卵和寄生虫。采用D. P. Kozlov(1977)的鉴定指南对检测到的扁虫进行鉴别。报告期内共对32只毛皮动物进行了研究。结果鉴定出3种毒蜱。检出截断性假口18只(56.3%)。在梁赞地区发现了受寄生虫污染的地区。水貂中有2例(6.3%)感染染螨，感染率分别为6和11个。Сontaminated领土被记录在弗拉基米尔和梁赞地区。在梁赞地区1只水貂(3.2%)中检出一种狐耳绦虫病原体。在俄罗斯中部地区(弗拉基米尔和梁赞地区)发现了美洲水貂感染的功能性疫源地。恙虫科吸虫感染的病原体记录在动物肝脏的胆囊中。
{"title":"OPISTHORCHIDES OF THE AMERICAN MINK (NEOVISON VISON) IN NATURAL BIOCENOSIS OF CENTRAL RUSSIA","authors":"Andreyanov","doi":"10.31016/978-5-6046256-9-9.2022.23.45-49","DOIUrl":"https://doi.org/10.31016/978-5-6046256-9-9.2022.23.45-49","url":null,"abstract":"The research purpose was to identify helminth infections caused by the\u0000Opisthorchidae family in the American mink in its natural habitats. The material\u0000for this work was helminths collected from carcasses of the American mink during\u00002011–2021. We mashed up the liver in warm physiological saline, opened the cavity\u0000of the gallbladder and bile ducts with ophthalmic scissors, allowed to stand and\u0000examined the residue for trematode eggs and helminth marita. The detected flat\u0000worms were differentiated using the identification guide by D. P. Kozlov (1977). A\u0000total of 32 fur animals were studied during the reporting period. As a result of the\u0000research, 3 species of opisthorchides were identified. Pseudamphistomum truncatum\u0000was detected in 18 animals (56.3%). Areas contaminated by helminths were detected\u0000in the Ryazan Region. Metorchis albidus was found in minks in two cases (6.3%) with\u0000an infection rate of 6 and 11 trematodes per animal. Сontaminated territories were\u0000recorded in the Vladimir and Ryazan Regions. An Opisthorchis felineus pathogen was\u0000found in one mink (3.2%) in the Ryazan Region. Functional foci of trematodiases\u0000of the American mink were detected in the Central region of Russia (Vladimir and\u0000Ryazan Region). Pathogens of trematode infections of the family Opisthorchidae\u0000were recorded in the gallbladder of the animal's liver.","PeriodicalId":22969,"journal":{"name":"THEORY AND PRACTICE OF PARASITIC DISEASE CONTROL","volume":"124 4 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80480074","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Horse herd farming based on the year-round pasture management of horses has become one of the main branches of animal husbandry and the basis of the lifestyle and economy of the Yakutia population. Herds are formed according to their sex and age: stallions, mares, and foals are kept in the herd. Helminth infections are widespread among herd horses and are chronic in most cases without pronounced clinical manifestations. Horses seem to be completely healthy from the point of view of the usual visions of the disease. Therefore, no preventive or treatment measures are often applied. In cases of asymptomatic helminth infections (subclinical forms), the huge economic damage caused by them is determined not so much by the death of animals, but it is very difficult to endure wintering in Yakutia with a high invasion degree, and loss of fatness and weight. The Authors of the Article studied the interspecific relationships of equine intestinal nematodes in mixed invasion, and detected changes in the population density of individual nematode species in horses of different age and in different seasons of the year. The Strongylata incidence and infection rate in herd horses was studied based on the results of quantitative coproovoscopic and larvoscopic studies of faeces from herd horses, and on the results of incomplete helminthological dissections on horse ranches of Central Yakutia.
{"title":"FECUNDITY OF INTESTINAL STRONGYLATA IN HORSES IN CRITICAL CONDITIONS OF CENTRAL YAKUTIA","authors":"Kokolova, Gavrilieva, Sleptsova, Stepanova, Dulova","doi":"10.31016/978-5-6046256-9-9.2022.23.240-245","DOIUrl":"https://doi.org/10.31016/978-5-6046256-9-9.2022.23.240-245","url":null,"abstract":"Horse herd farming based on the year-round pasture management of horses has become\u0000one of the main branches of animal husbandry and the basis of the lifestyle and economy\u0000of the Yakutia population. Herds are formed according to their sex and age: stallions,\u0000mares, and foals are kept in the herd. Helminth infections are widespread among herd\u0000horses and are chronic in most cases without pronounced clinical manifestations.\u0000Horses seem to be completely healthy from the point of view of the usual visions of the disease. Therefore, no preventive or treatment measures are often applied. In cases of\u0000asymptomatic helminth infections (subclinical forms), the huge economic damage\u0000caused by them is determined not so much by the death of animals, but it is very\u0000difficult to endure wintering in Yakutia with a high invasion degree, and loss of fatness\u0000and weight. The Authors of the Article studied the interspecific relationships of equine\u0000intestinal nematodes in mixed invasion, and detected changes in the population density\u0000of individual nematode species in horses of different age and in different seasons of the\u0000year. The Strongylata incidence and infection rate in herd horses was studied based on\u0000the results of quantitative coproovoscopic and larvoscopic studies of faeces from herd\u0000horses, and on the results of incomplete helminthological dissections on horse ranches\u0000of Central Yakutia.","PeriodicalId":22969,"journal":{"name":"THEORY AND PRACTICE OF PARASITIC DISEASE CONTROL","volume":"518 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77168522","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-04-18DOI: 10.31016/978-5-6046256-9-9.2022.23.62-67
Baranova, Panova
The research purpose is studying early signs of the anthelmintic resistance development in equine nematode population on horse farms. This is possible with reference to the egg-reappearance period (ERP) after the treatment. The study was performed in the Moscow Region in 2020–2021. The horses were examined by the flotation method before the therapy. The data obtained made it possible to divide the animals into 5 experimental groups. Groups 1–2 included horses infected by strongyles. The treatment was given with Albendazole and Ivermectin. Groups 3–5 included horses infected with Parascaris equorum; they were treated with Fenbendazole, Ivermectin and Aversectin C. All horses from the experimental groups were examined on days 14, 42 and 84. Benzimidazoles and Aversectin C showed no ERP reduction. Despite the fact that Albendazole did not show 100% efficacy and an increase in eggs appeared in faeces of the horses began from day 42 (from week 6), these data correspond to the literature data on the ERP during the Albendazole therapy and do not indicate the development of any anthelmintic resistance. After Ivermectin, the growth of Strongylid and Parascaris eggs was detected in faeces of the horses on day 42 (from week 6), which was an ERP reduction as compared with the literature data at 9 weeks. The study was supported by the grant from the Russian Science Foundation (Project No. 20-76-00035).
{"title":"NEMATODE EGG RE-APPEARANCE PERIOD AFTER ANTHELMINTIC THERAPY IN HORSES IN THE MOSCOW REGION","authors":"Baranova, Panova","doi":"10.31016/978-5-6046256-9-9.2022.23.62-67","DOIUrl":"https://doi.org/10.31016/978-5-6046256-9-9.2022.23.62-67","url":null,"abstract":"The research purpose is studying early signs of the anthelmintic resistance\u0000development in equine nematode population on horse farms. This is possible with\u0000reference to the egg-reappearance period (ERP) after the treatment. The study\u0000was performed in the Moscow Region in 2020–2021. The horses were examined\u0000by the flotation method before the therapy. The data obtained made it possible to\u0000divide the animals into 5 experimental groups. Groups 1–2 included horses infected\u0000by strongyles. The treatment was given with Albendazole and Ivermectin. Groups\u00003–5 included horses infected with Parascaris equorum; they were treated with\u0000Fenbendazole, Ivermectin and Aversectin C. All horses from the experimental groups\u0000were examined on days 14, 42 and 84. Benzimidazoles and Aversectin C showed no\u0000ERP reduction. Despite the fact that Albendazole did not show 100% efficacy and\u0000an increase in eggs appeared in faeces of the horses began from day 42 (from week\u00006), these data correspond to the literature data on the ERP during the Albendazole\u0000therapy and do not indicate the development of any anthelmintic resistance. After\u0000Ivermectin, the growth of Strongylid and Parascaris eggs was detected in faeces of\u0000the horses on day 42 (from week 6), which was an ERP reduction as compared with\u0000the literature data at 9 weeks. The study was supported by the grant from the Russian\u0000Science Foundation (Project No. 20-76-00035).","PeriodicalId":22969,"journal":{"name":"THEORY AND PRACTICE OF PARASITIC DISEASE CONTROL","volume":"24 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78802614","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-04-18DOI: 10.31016/978-5-6046256-9-9.2022.23.371-376
Postevoy
The mollusk Lymnaea truncatula is an intermediate host of Fasciola hepatica. However, the involvement of other mollusk species (L. stagnalis, Galba palustris, etc.) in the F. hepatica development cycle might take place. In this connection, we have studied the spread of molluscs of these species in areas contaminated by Fasciola hepatica. The research purpose was to study the infection of molluscs by Fasciola larvae in the habitats (biotopes) on pastures contaminated by trematodiasis in the Bryansk Region. We determined the population density of molluscs and their species on the pastures, and the infection dynamics of parthenita stages of F. hepatica in molluscs. The study was performed on 3 pastures of 12 to 27 hectares from April to October 2021. The following molluscs were examined: 10 to 93 specimens of the snail L. truncatula, 11 to 24 specimens of the great pond snail L. stagnalis, and 12 to 42 specimens of the aquatic snail L. palustris. Molluscs were examined for infection with Fasciola larvae by the compression method every month during the grazing period (April-October). As a result of the study, the snail L. truncatula was only found to be infected by larval stages of Fasciola. The remaining lymnaeids were free from this trematode invasion. The snail L. truncatula was more infected with Fasciola in September. The Fasciola larvae in the snail were observed in May, August and September with the infection rate of 2.3%, 3.5% and 4.3%, respectively.
{"title":"STUDY OF MOLLUSCS IN BIOTOPES ON PASTURES CONTAMINATED BY FASCIOLA HEPATICA","authors":"Postevoy","doi":"10.31016/978-5-6046256-9-9.2022.23.371-376","DOIUrl":"https://doi.org/10.31016/978-5-6046256-9-9.2022.23.371-376","url":null,"abstract":"The mollusk Lymnaea truncatula is an intermediate host of Fasciola hepatica.\u0000However, the involvement of other mollusk species (L. stagnalis, Galba palustris, etc.)\u0000in the F. hepatica development cycle might take place. In this connection, we have\u0000studied the spread of molluscs of these species in areas contaminated by Fasciola\u0000hepatica. The research purpose was to study the infection of molluscs by Fasciola\u0000larvae in the habitats (biotopes) on pastures contaminated by trematodiasis in the\u0000Bryansk Region. We determined the population density of molluscs and their species\u0000on the pastures, and the infection dynamics of parthenita stages of F. hepatica in\u0000molluscs. The study was performed on 3 pastures of 12 to 27 hectares from April\u0000to October 2021. The following molluscs were examined: 10 to 93 specimens of\u0000the snail L. truncatula, 11 to 24 specimens of the great pond snail L. stagnalis, and\u000012 to 42 specimens of the aquatic snail L. palustris. Molluscs were examined for\u0000infection with Fasciola larvae by the compression method every month during the\u0000grazing period (April-October). As a result of the study, the snail L. truncatula was\u0000only found to be infected by larval stages of Fasciola. The remaining lymnaeids were\u0000free from this trematode invasion. The snail L. truncatula was more infected with\u0000Fasciola in September. The Fasciola larvae in the snail were observed in May, August\u0000and September with the infection rate of 2.3%, 3.5% and 4.3%, respectively.","PeriodicalId":22969,"journal":{"name":"THEORY AND PRACTICE OF PARASITIC DISEASE CONTROL","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83006450","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
In the structure of parasitic diseases, helminthiasis traditionally accounts for about 90%. Among them, a special role belongs to larval or tissue helminthiasis. In order to further predict the level of endemic helminthiases in specific administrative territories and develop appropriate proposals for planning and implementing preventive and antiepidemic measures, an analysis of the incidence of larval helminthiases in the population was carried out. The data of official statistics (information on infectious and parasitic diseases – form No. 2) on the incidence of larval helminthiases in the period 2016– 2020, as well as maps of epidemiological survey of cases of echinococcosis, trichinosis, toxocariasis and dirofilariasis, received by the Reference Center by monitoring of larval helminthiases, functioning on the basis of the FBSI "Rostov Research Institute of Microbiology and Parasitology" of Rospotrebnadzor. It is noted that the most unfavorable administrative territories in terms of the incidence of larval helminthiases are currently: echinococcosis – the territories of the North Caucasus, Volga and Ural federal districts; toxocariasis – the territories of the Ural and Siberian federal districts, trichinosis – the territories of the Siberian and Far Eastern federal districts. Dirofilariasis was recorded more often in the territories of the Southern and Volga federal districts.
{"title":"INCIDENCE OF LARVAL HELMINTHIASIS IN THE POPULATION OF THE RUSSIAN FEDERATION","authors":"Dimidova, Chernikova, Khutoryanina, Kalyuzhina, Tverdochlebova","doi":"10.31016/978-5-6046256-9-9.2022.23.184-189","DOIUrl":"https://doi.org/10.31016/978-5-6046256-9-9.2022.23.184-189","url":null,"abstract":"In the structure of parasitic diseases, helminthiasis traditionally accounts for about\u000090%. Among them, a special role belongs to larval or tissue helminthiasis. In order to\u0000further predict the level of endemic helminthiases in specific administrative territories\u0000and develop appropriate proposals for planning and implementing preventive and antiepidemic measures, an analysis of the incidence of larval helminthiases in the population was carried out. The data of official statistics (information on infectious and parasitic diseases – form No. 2) on the incidence of larval helminthiases in the period 2016–\u00002020, as well as maps of epidemiological survey of cases of echinococcosis, trichinosis,\u0000toxocariasis and dirofilariasis, received by the Reference Center by monitoring of\u0000larval helminthiases, functioning on the basis of the FBSI \"Rostov Research Institute\u0000of Microbiology and Parasitology\" of Rospotrebnadzor. It is noted that the most\u0000unfavorable administrative territories in terms of the incidence of larval helminthiases\u0000are currently: echinococcosis – the territories of the North Caucasus, Volga and Ural\u0000federal districts; toxocariasis – the territories of the Ural and Siberian federal districts,\u0000trichinosis – the territories of the Siberian and Far Eastern federal districts. Dirofilariasis\u0000was recorded more often in the territories of the Southern and Volga federal districts.","PeriodicalId":22969,"journal":{"name":"THEORY AND PRACTICE OF PARASITIC DISEASE CONTROL","volume":"8 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79727343","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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