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1.
Arq. bras. med. vet. zootec. (Online) ; 71(3): 797-804, May-June 2019. tab, ilus
Article in Portuguese | VETINDEX, LILACS | ID: biblio-1011325

ABSTRACT

O presente trabalho teve como objetivo identificar e classificar a pododermatite em frangos de corte, comparando as lesões microscópicas com os aspectos macroscópicos utilizados pela inspeção sanitária. Foi realizada coleta de pés de frangos de corte, em matadouro de aves sob inspeção sanitária, após classificação utilizada nos padrões para exportação. Foram coletados 30 pés tipo A, 30 pés tipo B e 33 pés tipo C, escolhidos aleatoriamente dentro de cada grupo. Para análise histopatológica, foram desenvolvidos escores de acordo com a gravidade das lesões, variando de 0 a 2. Foi observada associação (qui-quadrado, P<0,05) entre a classificação macroscópica (A, B e C) e as alterações histológicas (0, 1 e 2). A classificação A diferiu significativamente (ANOVA, Tukey-Kramer, P<0,05) das classificações B e C quanto aos escores histopatológicos observados. Não houve diferença no comprometimento dos pés pelas lesões que justificassem a separação entre os pés classificados em B e C, uma vez que ambos apresentaram delimitação linear das lesões, sugerindo superficialidade e restrição ao epitélio queratinizado. Portanto, sugere-se o aproveitamento dos pés para consumo humano após remoção mecânica do "calo de pé", uma vez que este produto não oferece riscos ao consumidor.(AU)


The aim of this study was to identify and classify pododermatitis in broilers, comparing the microscopic lesions with the macroscopic aspects used by the Sanitary Inspection. Broiler chicken feet were collected at a Poultry slaughterhouse under Sanitary Inspection, after classification according to the exportation standards. The chicken feet were randomly selected in each group, 30 feet type A, 30 feet type B and 33 feet type C. For the histopathological analysis, scores were developed according to the severity of the lesions, varying from 0 to 2. There was association (Chi-square, P< 0.05) between the macroscopic classification (A, B and C) and histological changes (0, 1 and 2). The A classification differed significantly (ANOVA, Tukey-Kramer, P< 0.05) from the B and C classifications regarding the histopathological scores observed. There was no difference in feet lesions that justified the separation between the feet classified in B and C, since both presented a linear delimitation of the lesions, suggesting superficiality and restriction to the keratinized epithelium. Therefore, the use of the feet for human consumption after mechanical removal of the footpad lesions is suggested since the product does not pose risks to the consumer.(AU)


Subject(s)
Animals , Poultry Diseases/diagnosis , Chickens/anatomy & histology , Chickens/microbiology , Dermatitis/veterinary , Meat Industry
2.
J Helminthol ; 92(2): 210-215, 2018 Mar.
Article in English | MEDLINE | ID: mdl-28397630

ABSTRACT

The aims of the present study were to identify and describe the occurrence of nematode parasites in the gonads of bluefish Pomatomus saltatrix from off the coast of the state of Rio de Janeiro, Brazil. Only females were found to be parasitized by the nematodes, which were identified as P. saltatrix using morphological, morphometric and molecular data. Infection of female bluefish by this nematode had the following values: prevalence, 48.7%; mean intensity, 2.6; mean abundance, 1.3; and range of infection, 1-10 specimens. Histopathological examination of transverse and longitudinal sections of the parasitized ovaries showed nematodes at different stages of development among oocytes, but no indication of any associated inflammatory reaction. The presence of nematodes in the ovaries of bluefish is an important indication of fish hygiene, and parasitized fish are usually rejected by consumers because of their repugnant appearance.


Subject(s)
Fish Diseases/parasitology , Nematoda/isolation & purification , Nematode Infections/parasitology , Ovary/parasitology , Perciformes/parasitology , Animals , Brazil/epidemiology , Female , Fish Diseases/epidemiology , Life Cycle Stages , Nematoda/classification , Nematode Infections/epidemiology
3.
Arq. bras. med. vet. zootec ; 67(4): 1201-1204, July-Aug. 2015. ilus
Article in English | LILACS, VETINDEX | ID: biblio-1095964

ABSTRACT

Este trabalho registra a ocorrência espontânea de ameloblastoma em P. scalare. O tumor foi obtido a partir de um exemplar de Acará Bandeira, sendo fixado, seccionado, e os fragmentos processados para microscopia de luz e microscopia eletrônica de varredura (MEV). O exame macroscópico evidenciou uma massa tumoral que se estendia do rebordo alveolar do maxilar superior à face externa labial. À MEV, a neoplasia apresentou uma série de espículas. Microscopicamente, percebia-se um processo neoplásico constituído por tecido conjuntivo de característica mixoide, ricamente vascularizado, onde eram observados fragmentos de tecido osteoide. A amostra revelou proliferação neoplásica do epitélio odontogênico, onde as células neoplásicas se organizavam na forma de paliçada. Alterações histopatológicas em peixes têm sido úteis biomarcadores do efeito à exposição a substâncias tóxicas, sendo as neoplasias lesões específicas, comumente encontradas em peixes de áreas poluídas, revelando uma associação entre as lesões e a exposição a irritantes.(AU)


Subject(s)
Animals , Ameloblastoma/veterinary , Jaw Neoplasms/veterinary , Cichlids , Brazil
4.
Arq. bras. med. vet. zootec ; 65(1): 91-94, fev. 2013. ilus
Article in English | LILACS | ID: lil-667541

ABSTRACT

The present study focuses on the anatomopathological alterations provoked by parasitism by Calyptospora sp. in 40 specimens of Aequidens plagiozonatus collected in Pará, Brazil. Examinations of the fresh material by compression of the hepatopancreas and histological sections showed immature forms and oocysts characteristic of the genus Calyptospora, in addition to a large quantity of melanomacrophagic centers spread throughout the organ. No significant inflammation of the hepatic tissue was observed. The melanomacrophagic centers and the compression of the hepatocytes are part of the response of the host to the parasite. This study represents the first record of parasitism by Calyptospora in A. plagiozonatus.


Descreveram-se as alterações anatomopatológicas provocadas pelo parasitismo por Calyptospora sp. em 40 espécimes de Aequidens plagiozonatus, provenientes do município de Peixe-boi, Pará, Brasil. Foram encontradas formas imaturas e oocistos característicos do gênero Calyptospora, nos exames frescos por compressão e cortes histológicos, além de um grande número de centros melanomacrofágicos dispersos por todo o órgão. Digna de nota foi a ausência de inflamação significativa no tecido hepático. Centros melanomacrofágicos e compressão dos hepatócitos estão envolvidos na resposta do hospedeiro ao parasito. Este é o primeiro registro de ocorrência de parasitismo por Calyptospora sp. na espécie estudada.


Subject(s)
Animals , Coccidiosis/diagnosis , Coccidiosis/pathology , Coccidiosis/veterinary , Fishes/anatomy & histology
5.
Vet Pathol ; 50(4): 582-4, 2013 Jul.
Article in English | MEDLINE | ID: mdl-22961885

ABSTRACT

The stomachs of 100 free-ranging black caimans (Melanosuchus niger Spix, 1825) from the Mamirauá Sustainable Development Reserve, Amazonas state, Brazil, were examined for parasitism and pathologic lesions. All animals were harvested for human consumption. Ascaridoid nematodes were found in 67 caimans and were identified as Brevimulticaecum sp. These parasites were associated with focally extensive, chronic gastric ulcers and formation of localized intramural granulomas containing nematodes. All caiman were in good nutritional condition, which suggests that effects of gastric nematodiasis on the crocodilian hosts were minimal at the time of slaughter.


Subject(s)
Alligators and Crocodiles/parasitology , Ascaridida Infections/veterinary , Ascaridoidea/isolation & purification , Granuloma/veterinary , Stomach Ulcer/veterinary , Animals , Ascaridida Infections/pathology , Brazil , Chronic Disease , Granuloma/parasitology , Granuloma/pathology , Humans , Male , Stomach/parasitology , Stomach/pathology , Stomach Ulcer/parasitology , Stomach Ulcer/pathology
6.
Poult Sci ; 91(12): 3052-6, 2012 Dec.
Article in English | MEDLINE | ID: mdl-23155012

ABSTRACT

Infectious bronchitis is caused by a coronavirus, infectious bronchitis virus (IBV). Infectious bronchitis is an acute and highly contagious disease of economic importance due to the reduction in weight gain observed with infected broilers and the drop in egg quality and production associated with infected laying hens. The presence of deep pectoral myopathy has been associated with IBV variants. This lesion is detected at slaughterhouses and is characterized by paleness and atrophy of the deep pectoral muscle, including necrosis of the region, leading to condemnations of the breast muscle, a valuable meat cut in the market. This work aimed to study the relationship between deep pectoral myopathy and IBV by describing tracheal and muscle lesions and comparing the frequency of IBV detection via reverse-transcription (RT) PCR in muscle, tracheal, and cecal tonsil samples from broilers with and without myopathy. A case-control study was conducted in 40 broiler flocks vaccinated with the Massachusetts strain. The case group consisted of 23 flocks that presented myopathic lesions under sanitary inspection and a control group of 17 flocks without myopathic lesions. The tracheal, cecal tonsil, and supracoracoid muscle (with and without lesions) samples from the 40 broiler flocks were screened by RT-PCR to detect IBV. Histopathology of muscle and tracheal tissue was carried out. Upon microscopic examination, the muscle samples from the case group presented extensive necrosis, intense mononuclear inflammatory infiltration, muscle fiber fragmentation, and fibrotic tissue, confirming myopathy, whereas muscles from the control group showed no alterations. The tracheal samples presented a large number of infiltrated mononuclear inflammatory cells that in some areas formed submucosal nodules. A total of 25 flocks tested IBV positive by RT-PCR: 14 from the case group and 11 from the control group. The IBV was detected by RT-PCR directly in muscle samples. Despite that, the relationship between deep pectoral myopathy and IBV was not established. The higher positive IBV RT-PCR percentage noted in the cecal tonsil samples demonstrates how important the choice of organs is for diagnostic purposes.


Subject(s)
Chickens , Coronavirus Infections/veterinary , Infectious bronchitis virus , Muscular Diseases/veterinary , Poultry Diseases/virology , Animals , Case-Control Studies , Coronavirus Infections/complications , Coronavirus Infections/virology , Muscle, Skeletal/pathology , Muscular Diseases/etiology , Poultry Diseases/etiology , RNA, Viral/isolation & purification , Reverse Transcriptase Polymerase Chain Reaction/veterinary
7.
Arq. bras. med. vet. zootec ; 62(4): 827-836, Aug. 2010. ilus, tab
Article in Portuguese | LILACS | ID: lil-562049

ABSTRACT

Verificaram-se a prevalência e as características anatomopatológicas de neoplasias espontâneas encontradas em camundongos, provenientes de biotério. Foram necropsiados 9.219 camundongos pertencentes a 13 linhagens, entre agosto de 2002 e janeiro de 2007, para monitoramento sanitário. Amostras de tecidos foram colhidas, fixadas em formol tamponado a 10 por cento e processadas pelas técnicas habituais para inclusão em parafina. Foram realizados 84 diagnósticos de neoplasmas, sendo acometidos 82 camundongos (0,9 por cento). As principais neoplasias diagnosticadas com as respectivas ocorrências foram: carcinoma mamário, 27,4 por cento; linfoma, 19,0 por cento; adenocarcinoma papilífero pulmonar primário, 17,9 por cento; carcinoma epidermoide, 8,3 por cento; osteossarcoma osteoblástico, 4,8 por cento; e outros com menor porcentagem de ocorrência. Houve predomínio de tumores malignos, sendo mais frequentes os carcinomas mamários. A linhagem BALB/c An foi a que apresentou a maior variedade de tipos de neoplasias, seguida das linhagens outbred Swiss Webster e NIH. Fibrossarcoma em camundongos C57BL/10 ScSn-Dmd mdx/J e carcinoma mamário na linhagem NOD foram relatados pela primeira vez.


The prevalence and the pathologic features of spontaneous neoplasms found in mice from a breeding colony were verified. Nine thousand two hundred and nineteen mice belonging to 13 strains were submitted to necropsy from August 2002 to January 2007 for health monitoring. Tissue samples were collected, fixed in 10 percent buffered formalin, and processed by the usual techniques for inclusion in paraffin. Eighty-four neoplasms were diagnosed and 82 mice had tumors (0.9 percent). The main neoplasms were diagnosed with the following occurrences: mammary carcinoma, 27.4 percent; lymphoma, 19.0 percent; primary papillary pulmonary adenocarcinoma, 17.9 percent; squamous carcinoma, 8.3 percent; osteoblastic osteosarcoma, 4.8 percent; and others with a lower percentage of occurrence. The malignant tumors predominated and the most common tumor was the mammary carcinoma. The wider variety of neoplasm types was found in the BALB/c An strain, followed by the outbred strains Swiss Webster and NIH. The fibrossarcoma in C57BL/10 ScSn-Dmd mdx/J mice and mammary carcinoma in NOD mice were reported for the first time.


Subject(s)
Animals , Mice , Mice/anatomy & histology , Neoplasms/epidemiology , Mice , Neoplasms/veterinary , Prevalence
8.
Vet Parasitol ; 166(1-2): 175-7, 2009 Dec 03.
Article in English | MEDLINE | ID: mdl-19713041

ABSTRACT

Sixty specimens of Paralichthys isosceles captured in the southeastern Brazilian coast were investigated for helminths from October 2006 to March 2008. One thousand eight hundred and twenty larvae (third and fourth stages) of Hysterothylacium sp. were recovered from the abdominal cavity, free or inserted in the mesentery, intestine, stomach, stomach wall, liver, spleen, ovaries, and serosas of heart, kidneys, ovaries and abdominal musculature. Gross lesions appeared as nodules in the stomach mucosa and intestinal serosa. Histological examination of these nodules revealed sections of Hysterothylacium sp. larvae inserted in the abdominal musculature, in the submucosa, muscular and serosa layers of the stomach and intestine. Associated granulomas consisted of fibrous connective tissue, macrophages and lymphocytes that surrounded, besides the larvae, necrotic material and tunnels with acidophilic lining, sometimes devoid of inflammatory reaction. The pathological alterations as well as the occurrence of Hysterothylacium sp. are reported for the first time in this host. The parasitic indexes refer to a prevalence of 100%, mean intensity of 30.3, mean abundance of 32 and range of intensity variation from 1 to 596.


Subject(s)
Ascaridida Infections/veterinary , Ascaridoidea/physiology , Fish Diseases/epidemiology , Fish Diseases/parasitology , Animals , Ascaridida Infections/epidemiology , Ascaridida Infections/parasitology , Ascaridida Infections/pathology , Brazil , Fish Diseases/pathology , Larva
9.
Mycopathologia ; 168(2): 79-87, 2009 Aug.
Article in English | MEDLINE | ID: mdl-19360480

ABSTRACT

The present study reports the histopathological findings of 86 skin lesions of dogs with sporotrichosis from Rio de Janeiro. Suppurative granulomatous inflammation was the predominant finding and was observed in 76 (88.37%) cases. Plasma cells surrounding the suppurative granulomas were detected in 68 (89.5%) cases and an inflammatory infiltrate at the periphery of these granulomatous lesions was observed in 63 (82.9%). Fungus-specific staining revealed yeast cells compatible with Sporothrix schenckii in 36 cases. These fungal elements were only detected in lesions characterized by suppurative granulomatous inflammation. Thus, specific staining of serial sections is recommended in the case of dogs with skin lesions whose histopathological presentation is consistent with sporotrichosis. However, due to the generally small number of yeast cells in lesions, the hypothesis of sporotrichosis should not be ruled out even if the result is negative, especially in epidemic areas where correlation with epidemiological data is particularly useful.


Subject(s)
Dog Diseases/microbiology , Dog Diseases/pathology , Sporothrix/isolation & purification , Sporotrichosis/veterinary , Animals , Brazil , Dogs , Granuloma/pathology , Inflammation/pathology , Skin/pathology , Sporotrichosis/diagnosis , Sporotrichosis/microbiology , Sporotrichosis/pathology , Suppuration/pathology
10.
Arq. bras. med. vet. zootec ; 60(6): 1472-1475, dez. 2008. ilus, tab
Article in Portuguese | LILACS | ID: lil-506560

ABSTRACT

Descreveu-se o sistema reprodutor feminino em três espécies de mico-leão Leontopithecus (Lesson 1840), cativos: L. rosalia, L. chrysopygus e L. chrysomelas. A vulva está delimitada pelos lábios vulvares menores e com clitóris conspícuo. A superfície do períneo urogenital apresenta elevações papilares mais concentradas nos lábios vulvares, conferindo-lhe aspecto rugoso. O vestíbulo vaginal constitui um tubo muscular de parede espessa que se estende da rima da vulva até o óstio da vagina. A vagina é um tubo muscular alongado e achatado dorsoventralmente, que comunica o vestíbulo vaginal ao colo uterino. O útero piriforme está localizado na porção caudal da cavidade abdominal. Craniolateralmente abrem-se tubas uterinas convolutas e ovários grosseiramente fusiformes de superfície lisa.


It is described the female genital tract of three species of lion tamarin: Leontopithecus rosalia, L. chrysopygus, and L. chrysomelas. Fifteen animals were selected from the Museum of the Center of Primatology of Rio de Janeiro - CPRJ/FEEMA. The vulva is delimited by the labia and has a conspicuous clitoris. The surface of the urogenital perineum has papillary elevations more concentrated in the labia, which results in a rough aspect. The vestibule is a thick-walled muscular tube, extending from the pudendal cleft to the vaginal orifice. The vagina is an elongated and flat muscular tube, which communicates dorsoventrally the vestibulum and the cervix of uterus. The pyriform uterus is located in the caudal portion of the abdominal cavity. Craniolaterally, the convolute uterine tubes open, enveloping the ovaries, which are roughly fusiform with a smooth surface.


Subject(s)
Animals , Female , Genitalia, Female/anatomy & histology , Leontopithecus/anatomy & histology , Leontopithecus/physiology
11.
Arq. bras. med. vet. zootec ; 59(6): 1473-1477, dez. 2007. ilus, tab
Article in Portuguese | LILACS | ID: lil-476119

ABSTRACT

Estudaram-se achados de necropsia de 454 espécimens de Leontopithecus. Quatorze (3,1 por cento) apresentaram-se infectados por acantocéfalos intestinais identificados como Prosthenorchis elegans (Diesing, 1861). Não foram observadas diferenças na ocorrência do parasito quanto à espécie, origem - cativos ou selvagens - e sexo. Clinicamente os animais apresentaram-se com o pelame eriçado, apatia, inapetência, dores abdominais e diarréia. Em dois animais parasitados (14,2 por cento), observou-se perfuração da parede intestinal. As lesões encontradas caracterizaram-se por uma grave enterite ulcerativa. A ocorrência desses parasitos reforça a necessidade do estabelecimento de protocolos sanitários rígidos no manejo das espécies de primatas do neotrópico


This study assessed the autopsy findings of 454 Leontopithecus specimens, 14 of which (3.1 percent) were infected by intestinal Acanthocephala identified as Prosthenorchis elegans (Diesing, 1861). No difference in the occurrence of the parasite was observed regarding the species, origin (captive or wild) and sex of the lion tamarins. Clinically, the animals had spiked coat, apathy, inappetence, abdominal pain and diarrhea. Two of the parasitized animals (14.2 percent) had perforation of the intestinal wall. The lesions found were characterized as a severe ulcerative enteritis. The occurrence of such parasites highlights the need for establishing strict sanitary protocols for the management of the neotropical primate species


Subject(s)
Animals , Acanthocephala/pathogenicity , Enteritis/veterinary , Leontopithecus/parasitology , Primates/parasitology
12.
Arq. bras. med. vet. zootec ; 58(2): 287-290, abr. 2006. ilus
Article in English | LILACS | ID: lil-432684

ABSTRACT

Relata-se o primeiro caso de infecção de perus, Meleagris gallopavo, por Cheilospirura hamulosa no Brasil, com base no achado de três espécimes fêmeas de C. hamulosa, inseridos na submucosa da moela de um peru, retirado de um lote de 15 aves, provenientes de criadouros domésticos no estado de Minas Gerais. A ocorrência foi de 6,7 por cento. A ave parasitada não apresentava sinais clínicos. As lesões microscópicas da moela eram severas, caracterizando-se por intensos processos inflamatórios crônicos e difusos, com infiltrados mistos de granulócitos, estendendo-se à mucosa e às camadas musculares. Nessa área, foram observados fragmentos dos parasitos e perfuração da mucosa, com destruição das camadas musculares.


Subject(s)
Parasitic Diseases, Animal/epidemiology , Parasitic Diseases, Animal/physiopathology , Turkeys/anatomy & histology , Turkeys/parasitology , Brazil
13.
Arq. bras. med. vet. zootec ; 56(4): 472-479, ago. 2004. ilus, tab
Article in English | LILACS | ID: lil-386713

ABSTRACT

O trematódeo digenético Paratanaisia bragai é referido pela primeira vez parasitando a rolinha-caldo-de-feijão, Columbina talpacoti, proveniente de área suburbana do Rio de Janeiro, Brasil. Embora com baixa prevalência (10%), a intensidade de infecção foi alta, considerando que 116 exemplares do parasito foram obtidos de um dos rins. Não foram observadas lesões macroscópicas. A análise histopatológica demonstrou grande dilatação dos dutos coletores renais, com destruição e achatamento das células epiteliais de revestimento, sem reação inflamatória. Os achados patológicos foram comparados aos anteriormente relatados para P. bragai em outros hospedeiros, desde a proposição da espécie em 1934.


Subject(s)
Pathology , Trematoda , Kidney
14.
Arq. ciênc. vet. zool. UNIPAR ; 7(1): 85-88, jan.-jun. 2004. ilus
Article in Portuguese | LILACS | ID: lil-418110

ABSTRACT

Relata-se, um surto de Mixomatose atingindo um criatório de coelhos (Oryctolagus cuniculus) no município de Maricá, RJ – Brasil, no ano de 2002, onde foram examinados e necropsiados seis animais. Clinicamente foram observados edema de face, orelhas, pálpebras e genitália externa; blefaro-conjuntivite purulenta, além de deformação naso-labial e presença de nódulos cutâneos principalmente no pavilhão auricular. À necropsia observou-se, além das alterações já encontradas no exame clínico, aumento dos linfonodos retrofaríngeos e submandibulares em dois animais e alterações pneumônicas e esplenomegalia em outros dois. Microscopicamente foram observadas alterações epididérmicas e, na derme, aspecto mixomatoso. Ainda foram observadas pneumonia intersticial com edema, e degeneração testicular.


Subject(s)
Animals , Male , Rabbits , Myxomatosis, Infectious/epidemiology , Myxomatosis, Infectious/physiopathology , Myxoma virus
15.
Arq. bras. med. vet. zootec ; 56(3): 325-332, jun. 2004. ilus, tab
Article in English | LILACS | ID: lil-364954

ABSTRACT

Coelhos foram infectados experimentalmente per os com 10 larvas L4 de Eustrogylides ignotus (n= 10) e 50 L3 de Contracaecum multipapillatum (n= 50) coletados em traíras (Hoplias malabaricus) naturalmente parasitadas a fim de se avaliar a patogenicidade induzida por essas espécies e nematóides em mamíferos. Dois coelhos (20%) infectados com E. ignotus morreram antes do quarto dia pós-infecção(um após 51 horas e outro após 78 horas). Seis coelhos (60%) mostraram-se inapetentes até o quinto dia após a infecção experimental. Não foram observados sinais clínicos nos coelhos infectados com C. multipapillatum. A necropsia, oito (80%) mostraram-se positivos para essa espécie de nematóide. Os coelhos infectados com E. ignotus apresentaram congestão gástrica, com formação de hematoma na parede gástrica em 60% dos casos. O peritônio estava congestionado em 20% dos animais, e em 10% dos casos foi observada a presença de abscesso. Todos os animais infectados apresentaram hiperemia da mucosa gástrica com gastrite hemorrágica provocada pela infecção com E. ignotus. Nas infecções com C. multipapillatum, a hiperemia foi seguida por ruptura da mucosa nos locais de fixação do parasito, e na mucosa gástrica observou-se infiltrado leucocitário, com necrose multifocais alcançando a submucosa. Nas infecções com E. ignotus foram constatadas lesões perfurantes em diversos órgãos, principalmente na parede gástrica, pâncreas e fígado, sempre na presença de processo inflamatório misto, intensamente fibrótico, com hemorragia e necrose.


Subject(s)
Animals , Male , Nematode Infections , Rabbits , Virulence
16.
Avian Pathol ; 30(3): 209-14, 2001 Jun.
Article in English | MEDLINE | ID: mdl-19184902

ABSTRACT

An investigation on the digenetic trematodes parasitizing free range reared guinea fowls was conducted in the state of Rio de Janeiro, Brazil, based on clinical examination, necropsies and histopathological findings in 36 guinea fowls. Parasites, prevalence and intensity of infection were, respectively: Paratanaisia bragai, 61.1% and 31 (in each kidney); Athesmia heterolecithodes, 8.3% and 38; Conspicuum conspicuum, 2.8% and 1. A. heterolecithodes was highly pathogenic to guinea fowls, causing severe hepatic lesions. However, C. conspicuum and P. bragai were less pathogenic in the considered intensities of infection. This is the first time that these parasite species have been reported in Brazilian guinea fowls.

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