Journal of Helminthology最新文献

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Two new species of the genus Sectonema Thorne, 1930 (Nematoda, Dorylaimida, Aporcelaimidae) from Iran, with new insights into its evolutionary relationships 来自伊朗的 Sectonema Thorne, 1930 属的两个新种(线虫纲,Dorylaimida, Aporcelaimidae),以及对其进化关系的新见解
IF 1.6 3区 生物学
Journal of Helminthology Pub Date : 2024-04-15 DOI: 10.1017/s0022149x24000245
M. Keramat, Z. Mahboubi, M. R. Atighi, E. Pourjam, P. Castillo, M. Pedram, R. Peña-Santiago
{"title":"Two new species of the genus Sectonema Thorne, 1930 (Nematoda, Dorylaimida, Aporcelaimidae) from Iran, with new insights into its evolutionary relationships","authors":"M. Keramat, Z. Mahboubi, M. R. Atighi, E. Pourjam, P. Castillo, M. Pedram, R. Peña-Santiago","doi":"10.1017/s0022149x24000245","DOIUrl":"https://doi.org/10.1017/s0022149x24000245","url":null,"abstract":"Two new species of the genus <jats:italic>Sectonema</jats:italic> found in northern Iran are characterized, including morphological descriptions and molecular (18S-, 28S-rDNA) analyses. <jats:italic>Sectonema tehranense</jats:italic> sp. nov. is distinguished by its 7.22 – 8.53 mm long body, lip region offset by constriction and 24 – 31 μm wide with perioral lobes and abundant setae- or cilia-like projections covering the oral field, mural tooth 15.5 – 17 μm long at its ventral side, neck 1091 – 1478 μm long, pharyngeal expansion occupying 61 – 71% of the total neck length, female genital system diovarian, uterus simple and 3.9 – 4.2 times the corresponding body diameter long, transverse vulva (<jats:italic>V</jats:italic> = 49 – 59), tail short and rounded (44 – 65 μm, <jats:italic>c</jats:italic> = 99 – 162, <jats:italic>c’</jats:italic> = 0.6 – 0.8), spicules 111 – 127 μm long, and 7 – 10 spaced ventromedian supplements with hiatus. <jats:italic>Sectonema noshahrense</jats:italic> sp. nov. displays a 4.07 – 4.73 mm long body, lip region offset by constriction and 23 – 25 μm wide with perioral lobes and abundant setae- or cilia-like projections covering the oral field, odontostyle 14 – 14.5 μm long, neck 722 – 822 μm long, pharyngeal expansion occupying 66 – 68% of the total neck length, female genital system diovarian, uterus simple and 2.4 – 2.7 times the corresponding body diameter long, transverse vulva (<jats:italic>V</jats:italic> = 54 – 55), tail convex conoid (39 – 47 μm, <jats:italic>c</jats:italic> = 91 – 111, <jats:italic>c’</jats:italic> = 0.8 – 0.9), spicules 82 μm long, and seven spaced ventromedian supplements with hiatus. Molecular analyses confirm a maximally supported (<jats:italic>Epacrolaimus</jats:italic> + <jats:italic>Metaporcelaimus</jats:italic> + <jats:italic>Sectonema</jats:italic>) clade and a tentative biogeographical pattern, with sequences of Indolamayan taxa forming a clade separated from those of Palearctic ones. Parallel or convergent evolution processes might be involved in the phylogeny of the species currently classified under <jats:italic>Sectonema.</jats:italic> This genus is certainly more heterogeneous than previously assumed.","PeriodicalId":15928,"journal":{"name":"Journal of Helminthology","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2024-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140587631","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Characterisation of the mitochondrial genome and phylogenetic analysis of Toxocara apodemi (Nematoda: Ascarididae) Toxocara apodemi(线虫纲:蛔虫科)线粒体基因组的特征和系统发育分析
IF 1.6 3区 生物学
Journal of Helminthology Pub Date : 2024-04-15 DOI: 10.1017/s0022149x24000221
Y. Gao, Y. Hu, S. Xu, H. Liang, H. Lin, T. H. Yin, K. Zhao
{"title":"Characterisation of the mitochondrial genome and phylogenetic analysis of Toxocara apodemi (Nematoda: Ascarididae)","authors":"Y. Gao, Y. Hu, S. Xu, H. Liang, H. Lin, T. H. Yin, K. Zhao","doi":"10.1017/s0022149x24000221","DOIUrl":"https://doi.org/10.1017/s0022149x24000221","url":null,"abstract":"We first sequenced and characterised the complete mitochondrial genome of <jats:italic>Toxocara apodeme,</jats:italic> then studied the evolutionary relationship of the species within Toxocaridae. The complete mitochondrial genome was amplified using PCR with 14 specific primers. The mitogenome length was 14303 bp in size, including 12 PCGs (encoding 3,423 amino acids), 22 tRNAs, 2 rRNAs, and 2 NCRs, with 68.38% A+T contents. The mt genomes of <jats:italic>T. apodemi</jats:italic> had relatively compact structures with 11 intergenic spacers and 5 overlaps. Comparative analyses of the nucleotide sequences of complete mt genomes showed that <jats:italic>T. apodemi</jats:italic> had higher identities with <jats:italic>T. canis</jats:italic> than other congeners. A sliding window analysis of 12 PCGs among 5 <jats:italic>Toxocara</jats:italic> species indicated that <jats:italic>nad</jats:italic>4 had the highest sequence divergence, and <jats:italic>cox</jats:italic>1 was the least variable gene. Relative synonymous codon usage showed that UUG, ACU, CCU, CGU, and UCU most frequently occurred in the complete genomes of <jats:italic>T. apodemi.</jats:italic> The Ka/Ks ratio showed that all <jats:italic>Toxocara</jats:italic> mt genes were subject to purification selection. The largest genetic distance between <jats:italic>T. apodemi</jats:italic> and the other 4 congeneric species was found in <jats:italic>nad</jats:italic>2, and the smallest was found in <jats:italic>cox</jats:italic>2. Phylogenetic analyses based on the concatenated amino acid sequences of 12 PCGs demonstrated that <jats:italic>T. apodemi</jats:italic> formed a distinct branch and was always a sister taxon to other congeneric species. The present study determined the complete mt genome sequences of <jats:italic>T. apodemi</jats:italic>, which provide novel genetic markers for further studies of the taxonomy, population genetics, and systematics of the Toxocaridae nematodes.","PeriodicalId":15928,"journal":{"name":"Journal of Helminthology","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2024-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140587630","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A comparison of the prevalence of Spirocerca lupi in three groups of dogs with different life and hunting styles 比较三组生活和狩猎方式不同的狗体内卢比螺旋体的流行情况
IF 1.6 3区 生物学
Journal of Helminthology Pub Date : 2024-04-12 DOI: 10.1017/s0022149x00701556
M.E. Mylonakis, A.F. Koutinas, M.V. Liapi, M.N. Saridomichelakis, T.S. Rallis
{"title":"A comparison of the prevalence of Spirocerca lupi in three groups of dogs with different life and hunting styles","authors":"M.E. Mylonakis, A.F. Koutinas, M.V. Liapi, M.N. Saridomichelakis, T.S. Rallis","doi":"10.1017/s0022149x00701556","DOIUrl":"https://doi.org/10.1017/s0022149x00701556","url":null,"abstract":"The prevalence of <jats:italic>Spirocerca lupi</jats:italic> in 260 privately owned dogs with different life and hunting styles in Greece was based on the examination of randomly taken faecal samples using Teleman's sedimentation technique. The dogs did not demonstrate any clinical signs of spirocerciasis. Although the prevalence was 10%, it was found to be significantly higher in trace hunting dogs (21%), than in scent hunting dogs (5%) and household pets (0%). There was no relationship between prevalence and age/sex of dogs. The impact of life and hunting styles on the prevalence of <jats:italic>S. lupi</jats:italic> in the dog and that of the faecal examination technique, are discussed.","PeriodicalId":15928,"journal":{"name":"Journal of Helminthology","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2024-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140587356","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Comparison of the antigenicity of protoscoleces and microvesicles of Echinococcus multilocularis prepared from rats 比较从大鼠身上制备的多棘球蚴原孢子和微囊的抗原性
IF 1.6 3区 生物学
Journal of Helminthology Pub Date : 2024-04-12 DOI: 10.1017/s0022149x00701544
A. Ito, T. Kanazawa, M. Nakao, Y. Sako, Y. Ishikawa, K. Nakaya
{"title":"Comparison of the antigenicity of protoscoleces and microvesicles of Echinococcus multilocularis prepared from rats","authors":"A. Ito, T. Kanazawa, M. Nakao, Y. Sako, Y. Ishikawa, K. Nakaya","doi":"10.1017/s0022149x00701544","DOIUrl":"https://doi.org/10.1017/s0022149x00701544","url":null,"abstract":"Rats are known to be relatively resistant to infection with <jats:italic>Echinococcus multilocularis</jats:italic>. However, when rats are inoculated with the parasite tissues, <jats:italic>E. multilocularis</jats:italic> proliferates slowly at first but after 6 months the cysts increase in size considerably and contain large numbers of protoscoleces. As rats survive for 18 months or longer, approximately 100 ml of packed protoscoleces can be produced from each rat. A comparison of the antigenicity of the protoscoleces and microvesicles by immunoblot methods showed that both Em18 and Em16 are shared components between both protoscoleces and microvesicles, although the latter have some additional antigenic components. In antigens prepared from protoscoleces, the banding patterns around Em18 were much simpler than those from microvesicles. Therefore, for serodiagnosis of <jats:italic>E. multilocularis</jats:italic>, antigens should be carefully prepared from protoscoleces rather than microvesicles from the rat.","PeriodicalId":15928,"journal":{"name":"Journal of Helminthology","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2024-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140587357","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A field study of natural infections in three freshwater snails with Fasciola hepatica and/or Paramphistomum daubneyi in central France 对法国中部三种淡水蜗牛自然感染肝吸虫和/或达布尼副蜗牛的实地研究
IF 1.6 3区 生物学
Journal of Helminthology Pub Date : 2024-04-12 DOI: 10.1017/s0022149x00700897
M. Abrous, D. Rondelaud, G. Dreyfuss
{"title":"A field study of natural infections in three freshwater snails with Fasciola hepatica and/or Paramphistomum daubneyi in central France","authors":"M. Abrous, D. Rondelaud, G. Dreyfuss","doi":"10.1017/s0022149x00700897","DOIUrl":"https://doi.org/10.1017/s0022149x00700897","url":null,"abstract":"Natural infections of three freshwater snails with <jats:italic>Fasciola hepatica</jats:italic> and/or <jats:italic>Paramphistomum daubneyi</jats:italic> were studied during two periods in 1996 and 1997 (June–July and September–October) on 18 farms located in the departments of Vienne and Haute Vienne (central France), and known for low prevalences of <jats:italic>F. hepatica</jats:italic> infections in ruminants. A total of 1573 <jats:italic>Lymnaea glabra</jats:italic> and 1421 <jats:italic>L. truncatula</jats:italic> 6 mm high or more were collected in the meadows of 13 farms and dissected under laboratory conditions. Snails with single or concurrent infections of <jats:italic>F. hepatica</jats:italic> and/or <jats:italic>P. daubneyi</jats:italic> were found for each <jats:italic>Lymnaea</jats:italic> species. In<jats:italic>L. truncatula</jats:italic>, global prevalences of natural infections with <jats:italic>F. hepatica</jats:italic> (3.8% in June–July, and 3.6% in September–October) were significantly greater than those recorded for <jats:italic>P. daubneyi</jats:italic> (1.1% and 0.8%, respectively). In <jats:italic>L. glabra</jats:italic>, global prevalences of <jats:italic>F. hepatica</jats:italic> infections (0.4% in each investigation period) were significantly lower than those found in <jats:italic>L. truncatula</jats:italic>, whereas there were no significant differences between prevalences of <jats:italic>P. daubneyi</jats:italic> infections. A total of 2721 <jats:italic>Planorbis leucostoma</jats:italic> measuring at least 4 mm in diameter were collected in the meadows of the other five farms on which <jats:italic>L. truncatula</jats:italic> was absent. In these planorbids, global prevalences of natural infections with <jats:italic>F. hepatica</jats:italic> were 0.4% in each period of investigation. Contrary to fasciolosis, snail infections with <jats:italic>P. daubneyi</jats:italic> were not noted on all farms of the Vienne and Haute-Vienne departments. Natural single or concurrent infections with <jats:italic>F. hepatica</jats:italic> and/or <jats:italic>P. daubneyi</jats:italic> in <jats:italic>L. glabra</jats:italic> and a natural infection of <jats:italic>P. leucostoma</jats:italic> with <jats:italic>F. hepatica</jats:italic> were found in swampy meadows on acid soil.","PeriodicalId":15928,"journal":{"name":"Journal of Helminthology","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2024-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140587359","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Temporal variations in the infection of a population of Cerithidea cingulata by larval trematodes in Kuwait Bay 科威特湾 Cerithidea cingulata 群体受幼虫吸虫感染的时间变化
IF 1.6 3区 生物学
Journal of Helminthology Pub Date : 2024-04-12 DOI: 10.1017/s0022149x00700034
W.Y. Al-Kandari, J. Abdul-Salam, R. Meakins
{"title":"Temporal variations in the infection of a population of Cerithidea cingulata by larval trematodes in Kuwait Bay","authors":"W.Y. Al-Kandari, J. Abdul-Salam, R. Meakins","doi":"10.1017/s0022149x00700034","DOIUrl":"https://doi.org/10.1017/s0022149x00700034","url":null,"abstract":"The prosobranch gastropod <jats:italic>Cerithidea cingulata</jats:italic> (Gastropoda: Potamididae) in Kuwait Bay was examined for larval trematode infections over a 17-month period. A total of 2537 snails were examined and 1265 (49.9%) found to be infected with one or more species of trematodes. The component community in the snail comprised 12 species representing the families Cyathocotylidae (2), Echinostomatidae (2), Haplosplanchnidae (1), Heterophyidae (2), Microphallidae (1), Philophthalmidae (2), Plagiorchiidae (1) and Schistosomatidae (1). Cyathocotylid II (41.6%) was by far the most prevalent species followed by the microphallid (3.9%), the two species comprised 90% of the total trematode fauna. The prevalence of infection increased with shell size and was significantly higher in male (47%) than female (33%) snails. Multiple infections were observed in only 15 (1.2%) of the infected snails; cyathocotylid I and cyathocotylid II combination occurred 14 times and heterophyid I and the microphallid occurred once. Trematode species were more diverse and prevalent in winter, and cercarial shedding peaked in summer. Behaviour of the definitive host and snail population dynamics were probably the major contributors to the detected temporal pattern in the infections.","PeriodicalId":15928,"journal":{"name":"Journal of Helminthology","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2024-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140579257","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Acquired resistance in rainbow trout against Gyrodactylus derjavini 虹鳟鱼获得的对河豚的抗药性
IF 1.6 3区 生物学
Journal of Helminthology Pub Date : 2024-04-12 DOI: 10.1017/s0022149x00700836
T. Lindenstrøm, K. Buchmann
{"title":"Acquired resistance in rainbow trout against Gyrodactylus derjavini","authors":"T. Lindenstrøm, K. Buchmann","doi":"10.1017/s0022149x00700836","DOIUrl":"https://doi.org/10.1017/s0022149x00700836","url":null,"abstract":"Investigations were conducted on the host response in rainbow trout and the associated changes in mucous cell density during infection with the skin monogenean <jats:italic>Gyrodactylus derjavini</jats:italic>. Parasite populations increased on all naive hosts and peaked 4–5 weeks p.i. after which infection levels decreased. Introduction of naive fish into responding host populations resulted in heavy infections of the naive fish, whereas parasite expulsion continued in the responding host groups showing an acquired, non-sterile immunity. This non-sterile immunity lasted at least a month as these hosts were refractory to reinfection despite being exposed to a high infection pressure. Mucous cell hyperplasia was seen in some groups during the intermediary phase of infection, but at the termination of the study a significant depletion was evident. Passive immunization of naive host (with sera from immune hosts) did not confer protection. This indicates differences between host responses to <jats:italic>G. derjavini</jats:italic> compared to responses against other pathogens where such a passive immunity has been described.","PeriodicalId":15928,"journal":{"name":"Journal of Helminthology","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2024-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140578904","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Prevalence and distribution of pig helminths in the Dongting Lake Region (Hunan Province) of the People's Republic of China 中华人民共和国洞庭湖区(湖南省)猪蠕虫的流行和分布情况
IF 1.6 3区 生物学
Journal of Helminthology Pub Date : 2024-04-12 DOI: 10.1017/s0022149x0070006x
J. Boes, A.L. Willingham, Shi Fuhui, Hu Xuguang, L. Eriksen, P. Nansen, T.B. Stewart
{"title":"Prevalence and distribution of pig helminths in the Dongting Lake Region (Hunan Province) of the People's Republic of China","authors":"J. Boes, A.L. Willingham, Shi Fuhui, Hu Xuguang, L. Eriksen, P. Nansen, T.B. Stewart","doi":"10.1017/s0022149x0070006x","DOIUrl":"https://doi.org/10.1017/s0022149x0070006x","url":null,"abstract":"The prevalence of helminths in pigs was investigated in five rural communities situated on the embankment of Dongting Lake in Zhiyang County, Hunan Province, People's Republic of China, in an area known to be endemic for <jats:italic>Schistosoma japonicum</jats:italic>. The helminth prevalences identified on the basis of faecal egg count analysis were: <jats:italic>Oesophagostomum</jats:italic> spp. (86.7%), <jats:italic>Ascaris suum</jats:italic> (36.7%), <jats:italic>Metastrongylus</jats:italic> spp. (25.8%), <jats:italic>Strongyloides</jats:italic> spp. (25.8%), <jats:italic>Trichuris suis</jats:italic> (15.8%), <jats:italic>Globocephalus</jats:italic> spp. (6.7%), <jats:italic>Gnathostoma</jats:italic> spp. (4.2%), <jats:italic>Schistosoma japonicum</jats:italic> (5.0%) and <jats:italic>Fasciola</jats:italic> spp. (1.3%). Post mortem examinations of a small number of pigs depositing eggs of different helminth species revealed the presence of <jats:italic>Oesophagostomum dentatum</jats:italic>, <jats:italic>O. quadrispinulatum</jats:italic>, <jats:italic>A. suum</jats:italic>, <jats:italic>Metastrongylus apri</jats:italic>, <jats:italic>M. pudendotectus</jats:italic>, <jats:italic>T. suis</jats:italic>, <jats:italic>G. hispidum</jats:italic> and <jats:italic>Ascarops dentata</jats:italic>. Prevalences of all helminths, with the exception of <jats:italic>Oesophagostomum</jats:italic> spp., were higher in young pigs (&lt; 8 months old) compared with adult pigs. Prevalences of trematodes were very low, especially for <jats:italic>S. japonicum</jats:italic> which had decreased dramatically compared with previous reports from this area of P.R. China, whereas prevalences of nematodes were generally in agreement with those reported from other Yangtze River Provinces. Results from helminth prevalence studies in pigs, conducted in other provinces of P.R. China between 1987 and 1997, are presented and discussed. It was concluded that a government helminth control programme, implemented in 1995 to control <jats:italic>S. japonicum</jats:italic> infection in pigs in Hunan Province, may have resulted in a greatly reduced prevalence of <jats:italic>S. japonicum</jats:italic> in pigs in this region.","PeriodicalId":15928,"journal":{"name":"Journal of Helminthology","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2024-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140578907","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Nematode parasite control practices of sheep and goat farmers in the region of Trikala, Greece 希腊特里卡拉地区绵羊和山羊养殖户控制线虫寄生虫的做法
IF 1.6 3区 生物学
Journal of Helminthology Pub Date : 2024-04-12 DOI: 10.1017/s0022149x00700125
G. Theodoropoulos, H. Theodoropoulos, G. Zervas, E. Bartziokas
{"title":"Nematode parasite control practices of sheep and goat farmers in the region of Trikala, Greece","authors":"G. Theodoropoulos, H. Theodoropoulos, G. Zervas, E. Bartziokas","doi":"10.1017/s0022149x00700125","DOIUrl":"https://doi.org/10.1017/s0022149x00700125","url":null,"abstract":"Information concerning worm control practices of sheep and goat farmers in the region of Trikala (central Greece) was collected through a questionnaire survey by visiting farms and interviewing farmers. Questionnaires from 57 farmers residing in 23 rural communities were collected. Anthelmintics were used by 89% of the farmers. On average, lambs, kids and goats were treated once annually, while sheep were treated either once or twice annually. Only 2% of farmers reported treatment of animals with anthelmintics when moving to new pastures. The most common broad-spectrum anthelmintics used were those belonging to the benzimidazoles and probenzimidazoles. Fifty nine percent of the farmers used the same anthelmintic group for 3 or more years and 34% used two or more anthelmintic groups in the same year. Almost all farmers reported estimating live weights for calculating anthelmintic doses through visual perception on the basis of an average weight (96%). Tablets and boluses were the most preferred anthelmintic formulation used by 96% of farmers. The selection of an anthelmintic was based for 58% of farmers on recommendation by a veterinarian and for 39% of farmers on the cost of the drug. The most common occasions for deworming the animals were at turn out (86%) and after parturition (31%). Only 6% of farmers reported deworming new animals before introducing them onto the farm. Farmers preferred to seek information about the use of anthelmintics and worm control strategies from veterinarians (63%) and other farmers (37%).","PeriodicalId":15928,"journal":{"name":"Journal of Helminthology","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2024-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140587423","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Intestinal helminths of spiny mice (Acomys cahirinus dimidiatus) from St Katherine's Protectorate in the Sinai, Egypt 埃及西奈半岛圣凯瑟琳保护区刺鼠(Acomys cahirinus dimidiatus)的肠道蠕虫
IF 1.6 3区 生物学
Journal of Helminthology Pub Date : 2024-04-12 DOI: 10.1017/s0022149x00700058
J.M. Behnke, C.J. Barnard, N. Mason, P.D. Harris, N.E. Sherif, S. Zalat, F.S. Gilbert
{"title":"Intestinal helminths of spiny mice (Acomys cahirinus dimidiatus) from St Katherine's Protectorate in the Sinai, Egypt","authors":"J.M. Behnke, C.J. Barnard, N. Mason, P.D. Harris, N.E. Sherif, S. Zalat, F.S. Gilbert","doi":"10.1017/s0022149x00700058","DOIUrl":"https://doi.org/10.1017/s0022149x00700058","url":null,"abstract":"Spiny mice, <jats:italic>Acomys cahirinus dimidiatus</jats:italic>, inhabiting the wadis close to St Katherine in the mountains of the Sinai peninsula, were trapped and their helminth parasites were studied. Sixty one mice provided faeces for analysis and 27 were killed and autopsied. Six species of helminths were recorded (the spirurid nematodes, <jats:italic>Protospirura muricola</jats:italic> (74.1%) and <jats:italic>Mastophorus muris</jats:italic> (11.1%), the oxyuroid nematodes, <jats:italic>Dentostomella kuntzi</jats:italic> (59.3%), <jats:italic>Aspiculuris africana</jats:italic> (3.7%), and <jats:italic>Syphacia minuta</jats:italic> (3.7%) and the hymenolepidid cestode <jats:italic>Rodentolepis negevi</jats:italic> (18.5%)). The spirurids were the dominant species present, accounting for up to 0.87% of total host body weight. Analysis of worm weights and lengths suggested that transmission had been taking place in the months preceding our study. No sex difference in the prevalence or abundance of spirurids was detected. Significant differences were identified in the abundance of total nematode burdens and the mean helminth species richness between the three wadis which provided multiple captures of mice. There was also a marked effect of host age on both parameters. A highly significant positive correlation between spirurid egg counts and total worm biomass indicated that non-invasive techniques based on egg counts could be used to quantify worm burdens and when this technique was applied to a larger sample size (<jats:italic>n</jats:italic> = 61), a significant difference between sites but no host sex or age effects were detected for spirurid faecal egg counts. The data suggest that there are differences between helminth component communities infecting spiny mice in different neighbouring wadis, a hypothesis which will be explored further through our continuing studies in the Sinai.","PeriodicalId":15928,"journal":{"name":"Journal of Helminthology","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2024-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140579493","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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