Pub Date : 2023-04-17DOI: 10.31016/978-5-6048555-6-0.2023.24.162-166
I. Gusarov, O. Davydova, I. I. Tsepilova
The Ust-Кubinsky District group of the European bison (Bison bonasus) is introduced, allopatric in relation to the main areas of the bison, and unique in its biological and ecological features, and has about 130 animals of different age and sex groups freely inhabiting and reproducing in a sharply continental climate. Helminthofaunistic studies of the population have almost never been carried out before. The study describes the results of helminthovoscopic studies conducted using the Kotelnikov flotation method and direct sedimentation method (sequential washing). A total of 35 samples were studied. It was found that the gastrointestinal parasite fauna in the studied group was depleted and represented by nematodes of the suborder Strongylata (with the prevalence of invasion of 40%), and protozoa of the genus Eimeria (with the prevalence of invasion of 37.1%). Mixed invasion of both taxonomic groups of endoparasites was observed in 17%. This can be explained by the peculiarity of the trophic and chorological relations of the parasite host, the European bison, in the studied territory. It should be noted that these studies are preliminary, and it is necessary to conduct them in different periods of the year, particularly, in the summer-autumn, with animal groups separated by age, if possible, since it is known that the parasite fauna of young and adult animals can differ significantly.
{"title":"GASTROINTESTINAL PARASITE FAUNA OF THE EUROPEAN BISON (BISON BONASUS) OF THE UST-KUBINSKY DISTRICT POPULATION IN THE VOLOGDA REGION","authors":"I. Gusarov, O. Davydova, I. I. Tsepilova","doi":"10.31016/978-5-6048555-6-0.2023.24.162-166","DOIUrl":"https://doi.org/10.31016/978-5-6048555-6-0.2023.24.162-166","url":null,"abstract":"The Ust-Кubinsky District group of the European bison (Bison bonasus) is \u0000introduced, allopatric in relation to the main areas of the bison, and unique in \u0000its biological and ecological features, and has about 130 animals of different age \u0000and sex groups freely inhabiting and reproducing in a sharply continental climate. \u0000Helminthofaunistic studies of the population have almost never been carried out before. The study describes the results of helminthovoscopic studies conducted \u0000using the Kotelnikov flotation method and direct sedimentation method (sequential \u0000washing). A total of 35 samples were studied. It was found that the gastrointestinal \u0000parasite fauna in the studied group was depleted and represented by nematodes of \u0000the suborder Strongylata (with the prevalence of invasion of 40%), and protozoa \u0000of the genus Eimeria (with the prevalence of invasion of 37.1%). Mixed invasion of \u0000both taxonomic groups of endoparasites was observed in 17%. This can be explained \u0000by the peculiarity of the trophic and chorological relations of the parasite host, \u0000the European bison, in the studied territory. It should be noted that these studies \u0000are preliminary, and it is necessary to conduct them in different periods of the \u0000year, particularly, in the summer-autumn, with animal groups separated by age, if \u0000possible, since it is known that the parasite fauna of young and adult animals can \u0000differ significantly.","PeriodicalId":22969,"journal":{"name":"THEORY AND PRACTICE OF PARASITIC DISEASE CONTROL","volume":"3 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90758480","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: 10.31016/978-5-6048555-6-0.2023.24.426-430
T. Sivkova, P. Kosintsev
Mammoth parasites (Mammuthus primigenius Blumenbach, 1799) are currently being studied according to the morphological characteristics of parasite residues due to the lack of established genetic markers for performing genetic tests. A parasitological study of the intestinal contents of two mammoths was carried out – Mongochensky (Gydan Peninsula) and Tadibе (Yamal Peninsula). We conducted a parasitological study of the remains of the intestines of two mammoths - Mongochensky and Tadibe, provided by employees of the Institute of Plant and Animal Ecology of the Ural Branch of the Russian Academy of Sciences. The work was carried out according to the generally accepted in paleoparasitology method with the use of residue rehydration and the subsequent use of the combined and sedimentation method. In a parasitological study of the intestinal contents of the Mongochensky mammoth, no parasites were found, while analysis of the material from the mammoth from Tadibe revealed two nematode eggs. The number of eggs found was small 1.5 eggs per 1 g of feces. Large sizes, rounded shape, the presence of a thick layered shell made it possible to identify these objects as eggs of representatives of the family Ascarididae Baird, 1853. The structure of the eggs was similar to ones from modern horse parascarids. The diameter of the eggs was 78.68±1.19 and 87.94±0.47 mkm, the wall thickness was 4.14±0.29 and 4.48±0.34 microns, which is comparable to similar indicators of modern representatives. This is the first report of the detection of Ascarididae nematode in mammoths.
{"title":"FINDING OF ASCARID EGGS IN MAMMOTH","authors":"T. Sivkova, P. Kosintsev","doi":"10.31016/978-5-6048555-6-0.2023.24.426-430","DOIUrl":"https://doi.org/10.31016/978-5-6048555-6-0.2023.24.426-430","url":null,"abstract":"Mammoth parasites (Mammuthus primigenius Blumenbach, 1799) are currently being \u0000studied according to the morphological characteristics of parasite residues due to the \u0000lack of established genetic markers for performing genetic tests. A parasitological \u0000study of the intestinal contents of two mammoths was carried out – Mongochensky \u0000(Gydan Peninsula) and Tadibе (Yamal Peninsula). We conducted a parasitological \u0000study of the remains of the intestines of two mammoths - Mongochensky and Tadibe, \u0000provided by employees of the Institute of Plant and Animal Ecology of the Ural \u0000Branch of the Russian Academy of Sciences. The work was carried out according \u0000to the generally accepted in paleoparasitology method with the use of residue \u0000rehydration and the subsequent use of the combined and sedimentation method. In \u0000a parasitological study of the intestinal contents of the Mongochensky mammoth, \u0000no parasites were found, while analysis of the material from the mammoth from \u0000Tadibe revealed two nematode eggs. The number of eggs found was small 1.5 eggs \u0000per 1 g of feces. Large sizes, rounded shape, the presence of a thick layered shell \u0000made it possible to identify these objects as eggs of representatives of the family \u0000Ascarididae Baird, 1853. The structure of the eggs was similar to ones from modern \u0000horse parascarids. The diameter of the eggs was 78.68±1.19 and 87.94±0.47 mkm, \u0000the wall thickness was 4.14±0.29 and 4.48±0.34 microns, which is comparable to \u0000similar indicators of modern representatives. This is the first report of the detection \u0000of Ascarididae nematode in mammoths.","PeriodicalId":22969,"journal":{"name":"THEORY AND PRACTICE OF PARASITIC DISEASE CONTROL","volume":"4 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87188482","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: 10.31016/978-5-6048555-6-0.2023.24.172-176
A. Elizarov, N. S. Malysheva
The Sphere program uses modern open source code and is based on the capabilities of global databases and cartographic information from geoinformation systems openly presented in the Internet. The researcher can enter coordinates of the found biological material into the program and obtain a predictive model of the parasitic organism distribution with a certain tolerance. The biological material is found infected wild animals, invasive biohelminth eggs or positive samples of water, soil or bottom sediments. Sphere analyzes hypothetical habitats of helminth hosts, presents them in the form of spheres with a diameter of several meters (for amphibians and reptiles) up to several kilometers (for mammals), takes into account the presence of surface water bodies, soil types, vegetation types, as well as meteorological conditions, the direction of water flow, and seasonality of external influences. At the intersection of several spheres, the program makes a logical conclusion about the natural focus expansion under the influence of natural conditions – for example, drought or excessive precipitation – its transformation. The program information is displayed on an electronic map as the probability of detecting one or another form of a parasitic object in percent – for example, in a particular forest – the probability of location of an infected animal is 60%, in a specific open area, 40%, etc.
{"title":"FORECASTING THE SPREAD OF ZOONOTIC INFECTIONS","authors":"A. Elizarov, N. S. Malysheva","doi":"10.31016/978-5-6048555-6-0.2023.24.172-176","DOIUrl":"https://doi.org/10.31016/978-5-6048555-6-0.2023.24.172-176","url":null,"abstract":"The Sphere program uses modern open source code and is based on the capabilities \u0000of global databases and cartographic information from geoinformation systems \u0000openly presented in the Internet. The researcher can enter coordinates of the found \u0000biological material into the program and obtain a predictive model of the parasitic \u0000organism distribution with a certain tolerance. The biological material is found \u0000infected wild animals, invasive biohelminth eggs or positive samples of water, soil or \u0000bottom sediments. Sphere analyzes hypothetical habitats of helminth hosts, presents \u0000them in the form of spheres with a diameter of several meters (for amphibians and \u0000reptiles) up to several kilometers (for mammals), takes into account the presence \u0000of surface water bodies, soil types, vegetation types, as well as meteorological \u0000conditions, the direction of water flow, and seasonality of external influences. At the \u0000intersection of several spheres, the program makes a logical conclusion about the \u0000natural focus expansion under the influence of natural conditions – for example, \u0000drought or excessive precipitation – its transformation. The program information is \u0000displayed on an electronic map as the probability of detecting one or another form of \u0000a parasitic object in percent – for example, in a particular forest – the probability of \u0000location of an infected animal is 60%, in a specific open area, 40%, etc.","PeriodicalId":22969,"journal":{"name":"THEORY AND PRACTICE OF PARASITIC DISEASE CONTROL","volume":"183 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74646692","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: 10.31016/978-5-6048555-6-0.2023.24.463-469
V. O. Telicheva, S. A. Nagorniy, Yu. V. Kiosova, L. Ermakova, G. V. Strelnikova, I. Kornienko
Larval helminth infections remain a serious medical and social economic problem in many countries of the world, and the Russian Federation is no exception in this respect. Methods of direct diagnostics require highly qualified laboratory specialists. Polymerase chain reaction (PCR) can become an alternative to the method of morphological identification of helminths. We have selected and synthesized oligonucleotide primers based on known sequences of the species Dirofilaria repens and D. immitis; for E. granulosus; and for E. multilocularis. The sensitivity and specificity of the developed primers for D. repens and D. immitis has been confirmed in practice. We identified biological material from different biotopes from 2 patients. Both causative agents were identified as D. repens by two methods. To diagnose echinococcosis, we selected and synthesized 3 pairs of original specific primers for a fragment of the mtDNA-COI gene to detect Echinococcus spp. DNA; for E. granulosus and E. multilocularis. Based on the results of the performed work, an Application for an invention was executed and sent. The parallel application of two methods for the study of biological material minimizes diagnostic errors of larval helminth infections.
{"title":"THE RELEVANCE OF MOLECULAR GENETIC METHODS IN THE DIAGNOSIS OF LARVAL HELMINTH INFECTIONS (DIROFILARIASIS, ECHINOCOCCOSIS)","authors":"V. O. Telicheva, S. A. Nagorniy, Yu. V. Kiosova, L. Ermakova, G. V. Strelnikova, I. Kornienko","doi":"10.31016/978-5-6048555-6-0.2023.24.463-469","DOIUrl":"https://doi.org/10.31016/978-5-6048555-6-0.2023.24.463-469","url":null,"abstract":"Larval helminth infections remain a serious medical and social economic problem \u0000in many countries of the world, and the Russian Federation is no exception in this \u0000respect. Methods of direct diagnostics require highly qualified laboratory specialists. \u0000Polymerase chain reaction (PCR) can become an alternative to the method of \u0000morphological identification of helminths. We have selected and synthesized \u0000oligonucleotide primers based on known sequences of the species Dirofilaria repens \u0000and D. immitis; for E. granulosus; and for E. multilocularis. The sensitivity and \u0000specificity of the developed primers for D. repens and D. immitis has been confirmed \u0000in practice. We identified biological material from different biotopes from 2 patients. \u0000Both causative agents were identified as D. repens by two methods. To diagnose \u0000echinococcosis, we selected and synthesized 3 pairs of original specific primers \u0000for a fragment of the mtDNA-COI gene to detect Echinococcus spp. DNA; for E. \u0000granulosus and E. multilocularis. Based on the results of the performed work, an \u0000Application for an invention was executed and sent. The parallel application of two \u0000methods for the study of biological material minimizes diagnostic errors of larval \u0000helminth infections.","PeriodicalId":22969,"journal":{"name":"THEORY AND PRACTICE OF PARASITIC DISEASE CONTROL","volume":"18 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73320742","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: 10.31016/978-5-6048555-6-0.2023.24.215-219
O. I. Kolokolоva
Strongyloidiasis is a widespread invasive disease of animals and humans caused by nematodes from the order Rhabditida of the family Strongyloididae, which includes more than 50 species. Strongyloides are developed in the same way in all types of animals with the alternation of parasitic and free-living generations (in analogy with heterogonies). Strongyloidiasis is a zoonosis; when it is diagnosed, autoinvasion is possible. Strongyloidiasis causes damage to the gastrointestinal tract, respiratory organs, circulatory and lymphatic systems in the hosts of the invasion, and leads to metabolic disorders, fever and anemia. Since the larvae migrate through the circulatory and lymphatic system, there is some suggestion that animals can become infected intrauterine. There is evidence that strongyloidiasis among animals causes vasculitis of the optic nerve, damage to the nervous system and brain with characteristic symptoms (loss of vision or consciousness, epilepsy, convulsions). When the larvae penetrate through the skin, dermatitis and ulcers occur. Infected animals refuse to eat, which leads to their cachexy and even death. In most cases, strongyloidiasis affects young livestock animals (piglets, calves, lambs, foals) aged up to 3-6 months. The difficulty of controlling strongyloidiasis lies in the fact that Strongylids are geohelminths and animals can become infected by contact with infected soil and litter. According to the study results, strongyloidiasis was detected in newborn calves, which indicates the need for testing for strongyloidiasis and deworming not only young animals, but the entire breeding stock.
{"title":"STRONGYLOIDIASIS OF YOUNG CATTLE IN THE KALUGA REGION","authors":"O. I. Kolokolоva","doi":"10.31016/978-5-6048555-6-0.2023.24.215-219","DOIUrl":"https://doi.org/10.31016/978-5-6048555-6-0.2023.24.215-219","url":null,"abstract":"Strongyloidiasis is a widespread invasive disease of animals and humans caused by \u0000nematodes from the order Rhabditida of the family Strongyloididae, which includes \u0000more than 50 species. Strongyloides are developed in the same way in all types of \u0000animals with the alternation of parasitic and free-living generations (in analogy with \u0000heterogonies). Strongyloidiasis is a zoonosis; when it is diagnosed, autoinvasion is \u0000possible. Strongyloidiasis causes damage to the gastrointestinal tract, respiratory \u0000organs, circulatory and lymphatic systems in the hosts of the invasion, and leads \u0000to metabolic disorders, fever and anemia. Since the larvae migrate through the \u0000circulatory and lymphatic system, there is some suggestion that animals can \u0000become infected intrauterine. There is evidence that strongyloidiasis among animals \u0000causes vasculitis of the optic nerve, damage to the nervous system and brain with \u0000characteristic symptoms (loss of vision or consciousness, epilepsy, convulsions). \u0000When the larvae penetrate through the skin, dermatitis and ulcers occur. Infected \u0000animals refuse to eat, which leads to their cachexy and even death. In most cases, \u0000strongyloidiasis affects young livestock animals (piglets, calves, lambs, foals) aged \u0000up to 3-6 months. The difficulty of controlling strongyloidiasis lies in the fact that \u0000Strongylids are geohelminths and animals can become infected by contact with \u0000infected soil and litter. According to the study results, strongyloidiasis was detected \u0000in newborn calves, which indicates the need for testing for strongyloidiasis and \u0000deworming not only young animals, but the entire breeding stock.","PeriodicalId":22969,"journal":{"name":"THEORY AND PRACTICE OF PARASITIC DISEASE CONTROL","volume":"96 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75979925","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: 10.31016/978-5-6048555-6-0.2023.24.194-198
G. Itin, V. Kravchenko
On the territory of the North-Western Caucasus from 2010 to 2022, 60 badgers from 3 landscape-geographical zones were studied by the method of complete helminthological dissection. The prevalence and intensity of invasion, abundance index and dominance index were calculated. Infection of badgers with helminths was 100%. Helminthic cenosis was represented by 20 species of parasitic worms from 4 classes Trematoda, Cestoda, Nematoda and Acanthocephala, and 16 families. The detected helminths included 6 trematode species (30.0%), 3 cestode species (15.0%), 10 nematode species (55.0%) and one species of Acanthocephala (5.0%). Nineteen helminth species were found in the plain zone, 15 species in the foothill zone, and 9 species in the mountainous zone. The dominant trematode species was Euparyphium melis (the II average 32.0 specimens; AI 9.6; DI 16.5%). Subdominant species were Alaria alata (the II average 16.4 specimens; AI 5.5; DI 9.4%) and Pharyngostomum cordatum (II average 31.5 specimens; AI 3.1; DI 5.4%). The dominant cestode species was M. lineatus (II average 11.0 specimens; AI 5.1; DI 8.8%), and subdominant species was T. crassiceps (II average 7.3 specimens; AI 2.8; DI 4.8%). The dominant nematode species was U. stenocephala (II average 37.5 specimens; AI 17.5; DI 30.1%), and subdominant species were Molineus patens (II average 24.6 specimens; AI 4.5; DI 7.8%), and Thominx aerophilus (II average 7.6 specimens; AI 2.4; DI 4.1%). Analysis of the stomach contents of the badgers showed that a significant proportion of the diet consisted of animal feed which was present in the stomach of 90.0% of the examined animals. Fragments of rodents, amphibians, reptiles, fish, insects, mollusks, and annelids were found in their stomach.
{"title":"HELMINTHIC CENOSES OF THE EURASIAN BADGER (MELES MELES, L., 1758) IN THE NORTH-WESTERN CAUCASUS","authors":"G. Itin, V. Kravchenko","doi":"10.31016/978-5-6048555-6-0.2023.24.194-198","DOIUrl":"https://doi.org/10.31016/978-5-6048555-6-0.2023.24.194-198","url":null,"abstract":"On the territory of the North-Western Caucasus from 2010 to 2022, 60 badgers \u0000from 3 landscape-geographical zones were studied by the method of complete \u0000helminthological dissection. The prevalence and intensity of invasion, abundance \u0000index and dominance index were calculated. Infection of badgers with helminths \u0000was 100%. Helminthic cenosis was represented by 20 species of parasitic worms \u0000from 4 classes Trematoda, Cestoda, Nematoda and Acanthocephala, and 16 \u0000families. The detected helminths included 6 trematode species (30.0%), 3 cestode \u0000species (15.0%), 10 nematode species (55.0%) and one species of Acanthocephala \u0000(5.0%). Nineteen helminth species were found in the plain zone, 15 species in the \u0000foothill zone, and 9 species in the mountainous zone. The dominant trematode \u0000species was Euparyphium melis (the II average 32.0 specimens; AI 9.6; DI 16.5%). \u0000Subdominant species were Alaria alata (the II average 16.4 specimens; AI 5.5; DI \u00009.4%) and Pharyngostomum cordatum (II average 31.5 specimens; AI 3.1; DI 5.4%). \u0000The dominant cestode species was M. lineatus (II average 11.0 specimens; AI 5.1; \u0000DI 8.8%), and subdominant species was T. crassiceps (II average 7.3 specimens; AI \u00002.8; DI 4.8%). The dominant nematode species was U. stenocephala (II average 37.5 \u0000specimens; AI 17.5; DI 30.1%), and subdominant species were Molineus patens (II \u0000average 24.6 specimens; AI 4.5; DI 7.8%), and Thominx aerophilus (II average 7.6 \u0000specimens; AI 2.4; DI 4.1%). Analysis of the stomach contents of the badgers showed \u0000that a significant proportion of the diet consisted of animal feed which was present in \u0000the stomach of 90.0% of the examined animals. Fragments of rodents, amphibians, \u0000reptiles, fish, insects, mollusks, and annelids were found in their stomach.","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":"78799088","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: 10.31016/978-5-6048555-6-0.2023.24.73-77
A. Berdibaev, E. Shakarboev, Z. S. Abdukodirova, N. T. Sodikova
The research purpose is to study the degree of the Toxocara canis nematode infection in dogs in Karakalpakstan, the Ferghana Valley and the Kashkadarya Region, as well as to analyze seasonal and age dynamics of the invasion. The research work was carried out in 2020–2023. A complete helminthological dissection of the intestines was carried out for 59 dogs (28 from Karakalpakstan, 21 from the Ferghana Valley and 10 from Kashkadarya) and feces were examined from 143 dogs (76 from Karakalpakstan, 56 from the Ferghana Valley, and 11 from Kashkadarya). Out of 59 dissected dogs, 36 (61.02%) were infected with the nematode Toxocara canis; the intensity of invasion was 11.2±0.6 specimens. The study of feces from 143 dogs found that 31.8% of them (16.2% in rural areas, and 43.6% in cities) were infected with Toxocara. It has been established that the infection of dogs with Toxocara depends on their age, in particular, 52% in dogs up to 6 months; 31%, from 6 months up to a year; 17.6%, from a year to 3 years; and 1.4%, over 3 years. A high degree of Toxocara canis infection in dogs was observed in all seasons of the year, especially in summer. The conducted studies show that the course of the epizootic process in this invasion occurs on the basis of a certain pattern.
研究目的是研究Karakalpakstan、Ferghana Valley和Kashkadarya地区犬类犬弓形虫感染程度，并分析其入侵的季节和年龄动态。研究工作于2020-2023年进行。对59只狗(28只来自Karakalpakstan, 21只来自Ferghana Valley, 10只来自Kashkadarya)进行了完整的肠道寄生虫解剖，并对143只狗(76只来自Karakalpakstan, 56只来自Ferghana Valley, 11只来自Kashkadarya)的粪便进行了检查。59只解剖犬中，36只(61.02%)感染犬弓形虫;侵袭强度为11.2±0.6个标本。对143只狗的粪便进行研究，发现其中31.8%(农村16.2%，城市43.6%)感染弓形虫。已经确定狗感染弓形虫取决于它们的年龄，特别是在6个月以下的狗中，52%;31%，从6个月到一年;17.6%，一年至三年;3年增长1.4%。犬弓形虫感染在一年四季均有较高的发生率，尤其是夏季。所进行的研究表明，这次入侵的兽疫过程是在一定模式的基础上发生的。
{"title":"THE DISTRIBUTION OF NEMATODES TOXOCARA CANIS WERNER (1782) AMONG DOGS","authors":"A. Berdibaev, E. Shakarboev, Z. S. Abdukodirova, N. T. Sodikova","doi":"10.31016/978-5-6048555-6-0.2023.24.73-77","DOIUrl":"https://doi.org/10.31016/978-5-6048555-6-0.2023.24.73-77","url":null,"abstract":"The research purpose is to study the degree of the Toxocara canis nematode infection in dogs in Karakalpakstan, the Ferghana Valley and the Kashkadarya Region, \u0000as well as to analyze seasonal and age dynamics of the invasion. The research work \u0000was carried out in 2020–2023. A complete helminthological dissection of the intestines was carried out for 59 dogs (28 from Karakalpakstan, 21 from the Ferghana \u0000Valley and 10 from Kashkadarya) and feces were examined from 143 dogs (76 from \u0000Karakalpakstan, 56 from the Ferghana Valley, and 11 from Kashkadarya). Out of 59 \u0000dissected dogs, 36 (61.02%) were infected with the nematode Toxocara canis; the intensity of invasion was 11.2±0.6 specimens. The study of feces from 143 dogs found \u0000that 31.8% of them (16.2% in rural areas, and 43.6% in cities) were infected with \u0000Toxocara. It has been established that the infection of dogs with Toxocara depends \u0000on their age, in particular, 52% in dogs up to 6 months; 31%, from 6 months up to a \u0000year; 17.6%, from a year to 3 years; and 1.4%, over 3 years. A high degree of Toxocara \u0000canis infection in dogs was observed in all seasons of the year, especially in summer. \u0000The conducted studies show that the course of the epizootic process in this invasion \u0000occurs on the basis of a certain pattern.","PeriodicalId":22969,"journal":{"name":"THEORY AND PRACTICE OF PARASITIC DISEASE CONTROL","volume":"6 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79343071","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: 10.31016/978-5-6048555-6-0.2023.24.235-238
A. Kryazhev
Cryptosporidiosis is an ubiquitous parasitic zoonosis that is a significant problem in veterinary medicine and medicine worldwide. Livestock animals, in particular piglets, are most often susceptible to this disease, however, the species composition of representatives of the genus Cryptosporidium in this species of animals in the Russian Federation has remained unknown to this day. For the first time in the Russian Federation, in the north-west, by the example of the Vologda Region, on pig farms with industrial maintenance technology, as well as on private farms using the latest molecular genetic techniques, namely using highly-efficient sequencing of amplicon libraries of 18S rRNA gene fragments obtained as a result of a nested PCR, we detected parasitism of C. scrofarum in all age groups of examined animals. In total, samples from 400 animals were studied, namely 150 animals kept in industrial pig complexes (30 in each age group) and 250 (50 in each age group) animals kept on farms. The infection rate in the animals kept on pig farms was 34.0% (51/150), and 32.4% (81/250) on farms. Animals that are fattened at the age of 13-24 weeks were most susceptible to infection.
{"title":"SPREAD OF CRYPTOSPORIDIUM SCROFARUM ON PIG FARMS OF THE VOLOGDA REGION OF THE NORTH-WESTERN FEDERAL DISTRICT OF THE RUSSIAN FEDERATION","authors":"A. Kryazhev","doi":"10.31016/978-5-6048555-6-0.2023.24.235-238","DOIUrl":"https://doi.org/10.31016/978-5-6048555-6-0.2023.24.235-238","url":null,"abstract":"Cryptosporidiosis is an ubiquitous parasitic zoonosis that is a significant problem \u0000in veterinary medicine and medicine worldwide. Livestock animals, in particular \u0000piglets, are most often susceptible to this disease, however, the species composition \u0000of representatives of the genus Cryptosporidium in this species of animals in the \u0000Russian Federation has remained unknown to this day. For the first time in the \u0000Russian Federation, in the north-west, by the example of the Vologda Region, on \u0000pig farms with industrial maintenance technology, as well as on private farms using \u0000the latest molecular genetic techniques, namely using highly-efficient sequencing of \u0000amplicon libraries of 18S rRNA gene fragments obtained as a result of a nested PCR, \u0000we detected parasitism of C. scrofarum in all age groups of examined animals. In \u0000total, samples from 400 animals were studied, namely 150 animals kept in industrial \u0000pig complexes (30 in each age group) and 250 (50 in each age group) animals kept on \u0000farms. The infection rate in the animals kept on pig farms was 34.0% (51/150), and \u000032.4% (81/250) on farms. Animals that are fattened at the age of 13-24 weeks were \u0000most susceptible to infection.","PeriodicalId":22969,"journal":{"name":"THEORY AND PRACTICE OF PARASITIC DISEASE CONTROL","volume":"106 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85530035","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: 10.31016/978-5-6048555-6-0.2023.24.100-104
O. M. Bonina, E. A. Udaltsov, M. S. Bortsova
The article presents data on infection of fish of the cyprinid family (ide, dace, roach) with metacercariae of trematode Posthodiplostomum cuticola. Fish for the study were caught in the following water bodies of the Novosibirsk Region: the Chulym, Karakan, Inya, and Makhalikha Rivers, as well as from the left (Sharapovsky Bay) and right (Tulkinsky Bay) banks of the Novosibirsk Reservoir. Fish were studied by the compressor method generally accepted in parasitology and by partial helminthological dissection. A total of 270 fish specimens (71 ides, 82 daces, and 117 roaches) were studied. To analyze the fish infection, such indicators as the invasion prevalence and intensity, as well as the abundance index were used. The research results showed that the overall level of infection of cyprinids with P. cuticola metacercariae in the reservoirs of the Novosibirsk Region was 13.0%. The highest invasion prevalence of 35.2% was observed in ides; in daces and roaches this value is much lower and amounts to 7.3% and 3.4%, respectively. The invasion intensity was low, ranging from 1 to 7 parasite specimens per fish. The highest average invasion intensity of 3.3 and 3.1 specimens was recorded in daces from the Karakan River and ides from the Chulym River.
{"title":"DETECTION OF POSTHODIPLOSTOMUM CUTICOLA (NORDMANN, 1832) IN FISH IN THE WATER BODIES OF THE NOVOSIBIRSK REGION","authors":"O. M. Bonina, E. A. Udaltsov, M. S. Bortsova","doi":"10.31016/978-5-6048555-6-0.2023.24.100-104","DOIUrl":"https://doi.org/10.31016/978-5-6048555-6-0.2023.24.100-104","url":null,"abstract":"The article presents data on infection of fish of the cyprinid family (ide, dace, roach) \u0000with metacercariae of trematode Posthodiplostomum cuticola. Fish for the study \u0000were caught in the following water bodies of the Novosibirsk Region: the Chulym, \u0000Karakan, Inya, and Makhalikha Rivers, as well as from the left (Sharapovsky Bay) \u0000and right (Tulkinsky Bay) banks of the Novosibirsk Reservoir. Fish were studied by the \u0000compressor method generally accepted in parasitology and by partial helminthological \u0000dissection. A total of 270 fish specimens (71 ides, 82 daces, and 117 roaches) were \u0000studied. To analyze the fish infection, such indicators as the invasion prevalence and \u0000intensity, as well as the abundance index were used. The research results showed that \u0000the overall level of infection of cyprinids with P. cuticola metacercariae in the reservoirs \u0000of the Novosibirsk Region was 13.0%. The highest invasion prevalence of 35.2% was \u0000observed in ides; in daces and roaches this value is much lower and amounts to 7.3% \u0000and 3.4%, respectively. The invasion intensity was low, ranging from 1 to 7 parasite \u0000specimens per fish. The highest average invasion intensity of 3.3 and 3.1 specimens \u0000was recorded in daces from the Karakan River and ides from the Chulym River.","PeriodicalId":22969,"journal":{"name":"THEORY AND PRACTICE OF PARASITIC DISEASE CONTROL","volume":"46 10","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91488794","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: 10.31016/978-5-6048555-6-0.2023.24.376-380
D. Polukhina, O. Panova, O. Kurnosova
Mice are widely used as laboratory animals. Diagnosis of endoparasites is a necessary condition: this is a culling indicator of animals for SPF (specific pathogen free) vivariums, and for conventional vivariums, it is the necessary information for planning and the possibility of using these animals in various tests. This article describes live-time diagnostics of endoparasites in laboratory mice in SPF vivariums and in open-type vivariums. For the study, individual samples of faeces and bedding were taken from laboratory mice. Direct fecal smears were examined and the flotation method was used. The work was carried out in 2021–2022 in the Laboratory of Biology and Biological Basis of Preventive Measures of the VNIIP – FSC VIEV. During this study, the following 180 samples were taken: 138 individual faecal samples, 34 samples combined with the bedding, and 18 bedding samples. The studied samples were found to contain Giardia muris and Tritrichomonas sp., nematodes Aspiculuris tetraptera and Syphacia obvelata, and cestode Rodentolepis nana. Mixed invasions were also recorded. The results showed the need for planning work with laboratory mice in vivariums.
{"title":"PARASITE FAUNA OF LABORATORY MICE","authors":"D. Polukhina, O. Panova, O. Kurnosova","doi":"10.31016/978-5-6048555-6-0.2023.24.376-380","DOIUrl":"https://doi.org/10.31016/978-5-6048555-6-0.2023.24.376-380","url":null,"abstract":"Mice are widely used as laboratory animals. Diagnosis of endoparasites is a \u0000necessary condition: this is a culling indicator of animals for SPF (specific pathogen \u0000free) vivariums, and for conventional vivariums, it is the necessary information \u0000for planning and the possibility of using these animals in various tests. This \u0000article describes live-time diagnostics of endoparasites in laboratory mice in SPF \u0000vivariums and in open-type vivariums. For the study, individual samples of faeces \u0000and bedding were taken from laboratory mice. Direct fecal smears were examined \u0000and the flotation method was used. The work was carried out in 2021–2022 in the \u0000Laboratory of Biology and Biological Basis of Preventive Measures of the VNIIP – \u0000FSC VIEV. During this study, the following 180 samples were taken: 138 individual \u0000faecal samples, 34 samples combined with the bedding, and 18 bedding samples. \u0000The studied samples were found to contain Giardia muris and Tritrichomonas sp., \u0000nematodes Aspiculuris tetraptera and Syphacia obvelata, and cestode Rodentolepis \u0000nana. Mixed invasions were also recorded. The results showed the need for planning \u0000work with laboratory mice in vivariums.","PeriodicalId":22969,"journal":{"name":"THEORY AND PRACTICE OF PARASITIC DISEASE CONTROL","volume":"9 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80191789","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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