Revista brasileira de parasitologia veterinaria = Brazilian journal of veterinary parasitology : Orgao Oficial do Colegio Brasileiro de Parasitologia Veterinaria最新文献_第10页

Outbreak of toxoplasmosis associated with muscular lesions in finishing pigs caused by an atypical Toxoplasma gondii genotype. 由非典型刚地弓形虫基因型引起的育肥猪肌肉病变相关弓形虫病暴发

Revista brasileira de parasitologia veterinaria = Brazilian journal of veterinary parasitology : Orgao Oficial do Colegio Brasileiro de Parasitologia Veterinaria Pub Date : 2022-01-01 DOI: 10.1590/S1984-29612022055

Manoela Marchezan Piva, Paula Reis Pereira, Claiton Ismael Schwertz, Márcia Elisa Hammerschmitt, Marina Paula Lorenzett, Luan Cleber Henker, David Driemeier, Yara Souza Clemes, Hilda Fátima Jesus Pena, Saulo Petinatti Pavarini

{"title":"Outbreak of toxoplasmosis associated with muscular lesions in finishing pigs caused by an atypical Toxoplasma gondii genotype.","authors":"Manoela Marchezan Piva, Paula Reis Pereira, Claiton Ismael Schwertz, Márcia Elisa Hammerschmitt, Marina Paula Lorenzett, Luan Cleber Henker, David Driemeier, Yara Souza Clemes, Hilda Fátima Jesus Pena, Saulo Petinatti Pavarini","doi":"10.1590/S1984-29612022055","DOIUrl":"https://doi.org/10.1590/S1984-29612022055","url":null,"abstract":"Toxoplasma gondii infections are usually asymptomatic in pigs, and an acute clinical disease is rare in this host. This study aimed to determine the pathological and molecular aspects of an outbreak of fatal systemic toxoplasmosis in finishing pigs in Brazil. The outbreak occurred on a commercial finishing pig farm in the state of Santa Catarina in southern Brazil. The farm had 1500 pigs and 3.8% of mortality rate during the outbreak. The pigs had fever, anorexia, apathy, and locomotor deficits. Seven pigs were necropsied. Gross findings included multifocal to coalescent pale areas in skeletal muscles, lymphadenomegaly, hepatosplenomegaly, and non-colapsed lungs. The histological findings included granulomatous lymphadenitis, hepatitis and splenitis, necrotizing myositis, and lymphoplasmacytic interstitial pneumonia. Lung and liver lesions were occasionally accompanied by T. gondii parasitic structures. Positive immunolabeling for T. gondii tachyzoites and encysted bradyzoites was detected in all examined pigs. PCR-RFLP (11 markers) and microsatellite analysis (15 markers) identified the non-archetypal genotype #278 in pigs. This is the first report of systemic toxoplasmosis in pigs with muscle lesions and additionally shows the diversity of disease-causing T. gondii genotypes circulating in animals in Brazil.","PeriodicalId":21270,"journal":{"name":"Revista brasileira de parasitologia veterinaria = Brazilian journal of veterinary parasitology : Orgao Oficial do Colegio Brasileiro de Parasitologia Veterinaria","volume":"31 4","pages":"e011622"},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9901883/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9077935","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Ecology and diversity of metazoan parasites infecting Geophagus altifrons (Cichliformes: Cichlidae) from the Amazon River system in northern Brazil. 巴西北部亚马逊河水系高地食蝗(石蝗目:石蝗科)后生寄生虫的生态学和多样性。

Revista brasileira de parasitologia veterinaria = Brazilian journal of veterinary parasitology : Orgao Oficial do Colegio Brasileiro de Parasitologia Veterinaria Pub Date : 2022-01-01 DOI: 10.1590/S1984-29612022014

Ivanildo Amanajás Brito-Júnior, Marcos Sidney Brito Oliveira, Marcos Tavares-Dias

{"title":"Ecology and diversity of metazoan parasites infecting Geophagus altifrons (Cichliformes: Cichlidae) from the Amazon River system in northern Brazil.","authors":"Ivanildo Amanajás Brito-Júnior, Marcos Sidney Brito Oliveira, Marcos Tavares-Dias","doi":"10.1590/S1984-29612022014","DOIUrl":"https://doi.org/10.1590/S1984-29612022014","url":null,"abstract":"The aim of this study was to investigate the ecology and diversity of community and infracommunities of metazoan parasites Geophagus altifrons (Heckel, 1840) in Rio Jari, in the state of Amapá, in the eastern Amazon region. From the total of 31 fish examined, 90.3% were parasitized by one or more species, collecting a total number of 806 parasites. The parasites species identified were: Sciadicleithrum geophagi, Posthodiplostomum sp., Procamallanus (Spirocamallanus) inopinatus, Raphidascaris (Sprentacaris) sp., Genarchella genarchella, Gorytocephalus spectabilis and Ergasilus xinguensis. Most of the parasites showed an aggregate dispersion pattern. Brillouin diversity index, uniformity and species richness of parasites were low. The component community of parasites was constituted by ectoparasites and endoparasites, but with a predominance of ectoparasites. The body size of hosts had a low effect on the parasites infracommunities. This first eco-epidemiological study for G. altifrons reports these parasites in a host, for the first time, with the exception of S. geophagi and E. xinguensis.","PeriodicalId":21270,"journal":{"name":"Revista brasileira de parasitologia veterinaria = Brazilian journal of veterinary parasitology : Orgao Oficial do Colegio Brasileiro de Parasitologia Veterinaria","volume":"31 1","pages":"e019721"},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9901859/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10871930","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Occurrence of Aelurostrongylus abstrusus in domestic cats in Vilhena, Rondônia, Brazil. 巴西Vilhena市Rondônia家猫中隐杆线虫的发生情况。

Revista brasileira de parasitologia veterinaria = Brazilian journal of veterinary parasitology : Orgao Oficial do Colegio Brasileiro de Parasitologia Veterinaria Pub Date : 2022-01-01 DOI: 10.1590/S1984-29612022053

Enny Caroline Ferreira Farago, Acácio Duarte Pacheco, Patrícia Fernandes Nunes da Silva Malavazi, Mariasole Colombo, Simone Morelli, Angela Di Cesare, Soraia Figueiredo de Souza

{"title":"Occurrence of Aelurostrongylus abstrusus in domestic cats in Vilhena, Rondônia, Brazil.","authors":"Enny Caroline Ferreira Farago, Acácio Duarte Pacheco, Patrícia Fernandes Nunes da Silva Malavazi, Mariasole Colombo, Simone Morelli, Angela Di Cesare, Soraia Figueiredo de Souza","doi":"10.1590/S1984-29612022053","DOIUrl":"https://doi.org/10.1590/S1984-29612022053","url":null,"abstract":"Abstract Aelurostrongylosis, caused by the metastrongylid nematode Aelurostrongylus abstrusus, is an underestimated feline respiratory disease. Cats infected by A. abstrusus may show subclinical to severe clinical signs. Aelurostrongylus abstrusus has a worldwide distribution. Nevertheless, studies on this parasite in Brazil are scarce, and most have been conducted in the southern regions. This study investigated the occurrence of A. abstrusus in cats in Vilhena, Rondônia, Brazil, from April 2020 to February 2021. Three consecutive individual fecal samples from 101 cats were examined using Baermann and Hoffman tests. Two cats (1.98%) scored positive for A. abstrusus, one with the Baermann examination, and one with the Hoffman technique. No other lungworms were retrieved. The clinicopathological and epizootiological implications are described and discussed.","PeriodicalId":21270,"journal":{"name":"Revista brasileira de parasitologia veterinaria = Brazilian journal of veterinary parasitology : Orgao Oficial do Colegio Brasileiro de Parasitologia Veterinaria","volume":"31 4","pages":"e008622"},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9901858/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9079031","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Evaluation of techniques for diagnosis of Trypanosoma vivax infections in naturally infected cattle in the Zona da Mata Mineira. 马塔米内拉区自然感染牛中间日锥虫感染诊断技术评价。

Revista brasileira de parasitologia veterinaria = Brazilian journal of veterinary parasitology : Orgao Oficial do Colegio Brasileiro de Parasitologia Veterinaria Pub Date : 2022-01-01 DOI: 10.1590/S1984-29612022007

Jefferson Filgueira Alcindo, Maria Clara Guimarães Vieira, Thamiris Vilela Pereira Rocha, Cinthya Brillante Cardinot, Maurício Deschk, Gláucia Guimarães Amaral, Rafael Ferreira de Araujo, Carina Franciscato, Kayo José Garcia de Almeida Castilho Neto, Rosângela Zacarias Machado, Marcos Rogério André

{"title":"Evaluation of techniques for diagnosis of Trypanosoma vivax infections in naturally infected cattle in the Zona da Mata Mineira.","authors":"Jefferson Filgueira Alcindo, Maria Clara Guimarães Vieira, Thamiris Vilela Pereira Rocha, Cinthya Brillante Cardinot, Maurício Deschk, Gláucia Guimarães Amaral, Rafael Ferreira de Araujo, Carina Franciscato, Kayo José Garcia de Almeida Castilho Neto, Rosângela Zacarias Machado, Marcos Rogério André","doi":"10.1590/S1984-29612022007","DOIUrl":"https://doi.org/10.1590/S1984-29612022007","url":null,"abstract":"This study aimed to evaluate diagnostic techniques for trypanosomiasis, caused by Trypanosoma vivax, in naturally infected cattle in Minas Gerais, Zona da Mata. The deaths of six lactating cows with similar clinical conditions-characterized by hyporexia, hypogalactia, and recumbency-had been reported from one property. Initially, two animals were examined and diagnosed with trypanosomiasis through identification of the protozoan in a blood smear. After the initial diagnosis, all lactating cows (n=37) on the property were examined, and blood samples were collected for tests including whole blood smear, buffy coat smear, Woo's technique, enzyme-linked immunosorbent assay (ELISA), and polymerase chain reaction (PCR). Woo's test, buffy coat smears, and whole blood smears indicated that 4/37 (10.81%) animals were positive for trypanosomiasis, whereas ELISA and PCR indicated that 33/37 (89.19%) and 27/37 (72.97%) animals, respectively, were positive. The agreement obtained between parasitological techniques was classified as high, while between ELISA and PCR, no agreement. In conclusion, parasitological techniques have a low capacity to identify infected animals in the chronic stage of T. vivax infection. Therefore, techniques such as PCR and/or ELISA should be used to minimize the occurrence of false negatives.","PeriodicalId":21270,"journal":{"name":"Revista brasileira de parasitologia veterinaria = Brazilian journal of veterinary parasitology : Orgao Oficial do Colegio Brasileiro de Parasitologia Veterinaria","volume":"31 1","pages":"e018021"},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9901852/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10871927","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Compatibility of different Metarhizium spp. propagules with synthetic acaricides for controlling Rhipicephalus microplus. 不同绿僵菌繁殖体与合成杀螨剂防治小根头虫的相容性。

Revista brasileira de parasitologia veterinaria = Brazilian journal of veterinary parasitology : Orgao Oficial do Colegio Brasileiro de Parasitologia Veterinaria Pub Date : 2022-01-01 DOI: 10.1590/S1984-29612022018

Adriani da Silva Carneiro, Emily Mesquita, Laura Nóbrega Meirelles, Vânia Rita Elias Pinheiro Bittencourt, Patrícia Silva Golo

{"title":"Compatibility of different Metarhizium spp. propagules with synthetic acaricides for controlling Rhipicephalus microplus.","authors":"Adriani da Silva Carneiro, Emily Mesquita, Laura Nóbrega Meirelles, Vânia Rita Elias Pinheiro Bittencourt, Patrícia Silva Golo","doi":"10.1590/S1984-29612022018","DOIUrl":"https://doi.org/10.1590/S1984-29612022018","url":null,"abstract":"The inappropriate use of synthetic acaricides has selected resistant Rhipicephalus microplus populations. The present study evaluated the compatibility of different Metarhizium spp. propagules (conidia, blastospores, and microsclerotia) by incubating them with synthetic acaricides (amitraz, deltamethrin, and a combination of cypermethrin, chlorpyrifos, and citronellal) for 1 h, 5 h, 10 h, and 24 h. Conidia and microsclerotia of the tested isolates were usually more tolerant to synthetic acaricides than blastospores. Our study also analyzed the in vitro effect of deltamethrin associated with fungal propagules for controlling a population of R. microplus females that were not susceptible to this synthetic acaricide. The use of entomopathogenic fungi in association with deltamethrin in this tick population caused a greater tick control than did the use of the fungus or the synthetic acaricide separately.","PeriodicalId":21270,"journal":{"name":"Revista brasileira de parasitologia veterinaria = Brazilian journal of veterinary parasitology : Orgao Oficial do Colegio Brasileiro de Parasitologia Veterinaria","volume":"31 1","pages":"e018221"},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9901882/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9078514","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Selective control of Rhipicephalus microplus in a dairy cattle herd from different genetic groups. 不同遗传群奶牛群体微头虫的选择控制。

Revista brasileira de parasitologia veterinaria = Brazilian journal of veterinary parasitology : Orgao Oficial do Colegio Brasileiro de Parasitologia Veterinaria Pub Date : 2022-01-01 DOI: 10.1590/s1984-29612022062

Mariana Fogale de Andrade, Rodrigo Giglioti, Gunta Gutmanis, Bianca Tainá Azevedo, Cristiane Fernandes de Carvalho Fiorin, Anibal Eugênio Vercesi Filho, Luciana Morita Katiki, Cecília José Veríssimo

{"title":"Selective control of Rhipicephalus microplus in a dairy cattle herd from different genetic groups.","authors":"Mariana Fogale de Andrade, Rodrigo Giglioti, Gunta Gutmanis, Bianca Tainá Azevedo, Cristiane Fernandes de Carvalho Fiorin, Anibal Eugênio Vercesi Filho, Luciana Morita Katiki, Cecília José Veríssimo","doi":"10.1590/s1984-29612022062","DOIUrl":"https://doi.org/10.1590/s1984-29612022062","url":null,"abstract":"Alternatives for Rhipicephalus microplus control are needed in the light of its resistance to acaricides. One of the ways to decrease the use of acaricides in a herd is selective control (SC). In the present study, SC was evaluated in a dairy herd consisting of different genetic groups: Holstein, Jersey, crossbreed and Girolando. Ticks were counted in the right anterior third region on around 90 cows, totaling nine evaluations at intervals of 21 days. Commercial pour-on acaricide was applied only when the infestation was greater than or equal to eight ticks larger than 4 mm in the anterior third region. Tick counts were transformed into log10 and analyzed using mixed models. There was significant difference among groups: Holstein had the highest averages of tick numbers, as expected, although 34.3% did not receive tick treatment. In the other groups, SC reduced the use of acaricides by 79.1% for crossbreed, 81.5% for Jersey and 94.9% for Girolando. The criterion used for applying the acaricide successfully kept the tick population under control. The great advantage of SC was savings to the system, without harming the animals, in addition to generate fewer residues in the animals and in the environment.","PeriodicalId":21270,"journal":{"name":"Revista brasileira de parasitologia veterinaria = Brazilian journal of veterinary parasitology : Orgao Oficial do Colegio Brasileiro de Parasitologia Veterinaria","volume":"31 4","pages":"e012622"},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9901880/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9079951","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Dioctophyme renale in wandering dogs in Pelotas, South of Brasil. 巴西南部佩洛塔斯流浪狗中的双掌香蝇。

Revista brasileira de parasitologia veterinaria = Brazilian journal of veterinary parasitology : Orgao Oficial do Colegio Brasileiro de Parasitologia Veterinaria Pub Date : 2022-01-01 DOI: 10.1590/S1984-29612022008

Carolina Buss Brunner, Haide Valeska Scheid, Fabiano da Rosa Venancio, Jéssica Line Farias de Lima, Leonardo Schuler Faccini, Eliza Simone Viégas Sallis, Margarida Buss Raffi

{"title":"Dioctophyme renale in wandering dogs in Pelotas, South of Brasil.","authors":"Carolina Buss Brunner, Haide Valeska Scheid, Fabiano da Rosa Venancio, Jéssica Line Farias de Lima, Leonardo Schuler Faccini, Eliza Simone Viégas Sallis, Margarida Buss Raffi","doi":"10.1590/S1984-29612022008","DOIUrl":"https://doi.org/10.1590/S1984-29612022008","url":null,"abstract":"This study aimed to verify the occurrence of Dioctophyme renale in stray dogs in the city of Pelotas, in the state of Rio Grande do Sul, Brazil. The Laboratório Regional de Diagnóstico of the Universidade Federal de Pelotas received 146 wandering dogs for necropsy, sent by the City Hall of Pelotas from March 2012 to January 2020. Among the necropsied animals, seventeen dogs (11.64%) were diagnosed with dioctophymosis. Among these dogs, 11 were parasitized with one specimen in the right kidney, two dogs presented two specimens in the right kidney, and in other two dogs, the parasites were in the abdominal cavity. In one dog, two parasites were found in the left kidney; in another dog, both kidneys were parasitized, with two parasites in the right kidney and one in the left kidney. The data obtained in this study showed that the occurrence of D. renale in stray dogs in the city of Pelotas is high, and D. renale mainly parasitizes the right kidney.","PeriodicalId":21270,"journal":{"name":"Revista brasileira de parasitologia veterinaria = Brazilian journal of veterinary parasitology : Orgao Oficial do Colegio Brasileiro de Parasitologia Veterinaria","volume":"31 1","pages":"e016821"},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9901853/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9086426","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Ectoparasites of Columbina passerina insularis (Columbiformes) in the National Zoological Park, Havana, Cuba. 古巴哈瓦那国家动物园飞蛾属岛虫的体外寄生虫。

Revista brasileira de parasitologia veterinaria = Brazilian journal of veterinary parasitology : Orgao Oficial do Colegio Brasileiro de Parasitologia Veterinaria Pub Date : 2022-01-01 DOI: 10.1590/S1984-29612021096

Daniel González-Acuña, Armando Cicchino, Diana Echeverry, Karen Ardiles, Pablo Oyarzún-Ruiz, Sergey Mironov, Lucila Moreno

引用次数: 0

Diversity of Eimeria (Apicomplexa: Eimeriidae) species and risk factors associated in natural infecting calves at the Southern Agreste Microregion in the State of Pernambuco, Brazil. 巴西伯南布哥州南格雷斯特微区艾美耳球虫(顶复合体:艾美耳球虫科)物种多样性及自然感染小牛的相关危险因素

Revista brasileira de parasitologia veterinaria = Brazilian journal of veterinary parasitology : Orgao Oficial do Colegio Brasileiro de Parasitologia Veterinaria Pub Date : 2022-01-01 DOI: 10.1590/S1984-29612022026

Karlla Keyla Ferreira Dos Santos, Lucia Oliveira de Macedo, Ângela Imperiano da Conceição, Lucas Azevedo Dos Santos, Carla Lopes de Mendonça, Leucio Câmara Alves, Rafael Antonio Nascimento Ramos, Gílcia Aparecida de Carvalho

{"title":"Diversity of Eimeria (Apicomplexa: Eimeriidae) species and risk factors associated in natural infecting calves at the Southern Agreste Microregion in the State of Pernambuco, Brazil.","authors":"Karlla Keyla Ferreira Dos Santos, Lucia Oliveira de Macedo, Ângela Imperiano da Conceição, Lucas Azevedo Dos Santos, Carla Lopes de Mendonça, Leucio Câmara Alves, Rafael Antonio Nascimento Ramos, Gílcia Aparecida de Carvalho","doi":"10.1590/S1984-29612022026","DOIUrl":"https://doi.org/10.1590/S1984-29612022026","url":null,"abstract":"Eimeria species have importance to calves because of the economic losses. The aim of this study was to identify the species of Eimeria that affect calves and the risk factors associated with its natural infection. Fecal samples (387) were collected from dairy farms in the southern Agreste of Pernambuco. The feces were evaluated using the Gordon & Whitlock technique and were cultured in 2.5% potassium dichromate for sporulation of oocysts. Odds ratio (OR) were calculated to assess risk factors. Eimeria spp. were detected in 50.65% (196/387) of the samples. Eleven species were identified, being Eimeria bovis (26.64%; 548/2057), Eimeria zuernii (19.69%; 405/2057) and Eimeria ellipsoidalis (14.49%; 298/2057) those more frequent. Small herds (OR = 1.93), calves aged up to six months (OR = 2.12), absence of manure pit (OR = 7.52), fortnightly cleaning (OR = 4.71), collective calf pens (OR = 3.26), manual milking (OR = 2.16) and absence of veterinary care (OR = 2.28) were considered to be risk factors. The data revealed pathogenic species in more than 50% of the farms. Thus, the importance of adopting sanitary measures to reduce the spread of these protozoa in herds should be done, because of economic losses associated with its infection.","PeriodicalId":21270,"journal":{"name":"Revista brasileira de parasitologia veterinaria = Brazilian journal of veterinary parasitology : Orgao Oficial do Colegio Brasileiro de Parasitologia Veterinaria","volume":"31 2","pages":"e002222"},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9901888/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9078530","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Hemiurid and lecithasterid digenean trematodes and camallanid and cucullanid nematodes parasitizing flounders collected off the coast of Rio de Janeiro State, Brazil. 寄生在巴西里约热内卢州海岸的比目鱼上的半纲和卵磷脂纲线虫，以及寄生在比目鱼上的camall纲和cucul纲线虫。

Revista brasileira de parasitologia veterinaria = Brazilian journal of veterinary parasitology : Orgao Oficial do Colegio Brasileiro de Parasitologia Veterinaria Pub Date : 2022-01-01 DOI: 10.1590/S1984-29612022011

Michelle Cristie Gonçalves da Fonseca, Nilza Nunes Felizardo, Eduardo José Lopes Torres, Delir Corrêa Gomes, Marcelo Knoff

{"title":"Hemiurid and lecithasterid digenean trematodes and camallanid and cucullanid nematodes parasitizing flounders collected off the coast of Rio de Janeiro State, Brazil.","authors":"Michelle Cristie Gonçalves da Fonseca, Nilza Nunes Felizardo, Eduardo José Lopes Torres, Delir Corrêa Gomes, Marcelo Knoff","doi":"10.1590/S1984-29612022011","DOIUrl":"https://doi.org/10.1590/S1984-29612022011","url":null,"abstract":"A total of 132 flounder specimens (60 Paralichthys isosceles, 36 Paralichthys patagonicus and 36 Xystreurys rasile) were collected off the coast of the state of Rio de Janeiro, Brazil. The fish were measured, necropsied, and had their organs investigated for hemiurid and lecithasterid digenean trematodes and camallanid and cucullanid nematodes. Taxonomic identification of the parasites was based on morphological and morphometric characters and was conducted using bright-field and scanning electron microscopies. The trematodes Lecithochirium monticellii and Aponurus laguncula were found parasitizing P. isosceles, P. patagonicus and X. rasile while the nematodes Procamallanus (Spirocamallanus) halitrophus and Cucullanus bonaerensis were found parasitizing P. isosceles and X. rasile and P. isosceles, P. patagonicus and X. rasile, respectively. Parasite indices of prevalence, mean intensity, mean abundance, and range of infection, as well as infection site, were evaluated for each parasite species. This study allowed to evidence the first occurrence of P. patagonicus by L. monticellii; X. rasile by A. laguncula and P. (S.) halitrophus; and P. isosceles and P. patagonicus by C. bonaerensis in the Western South Atlantic Ocean.","PeriodicalId":21270,"journal":{"name":"Revista brasileira de parasitologia veterinaria = Brazilian journal of veterinary parasitology : Orgao Oficial do Colegio Brasileiro de Parasitologia Veterinaria","volume":"31 1","pages":"e019921"},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9901887/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10871931","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1