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1.
R. bras. Saúde Prod. Anim. ; 21: e2121022020, Aug. 7, 2020. ilus, tab
Article in English | VETINDEX | ID: vti-29236

ABSTRACT

The aim of the present study is to identify the occurrence of abscesses in cattle after the administration of bivalent foot-and-mouth disease vaccine as adverse reaction to components in the new commercial vaccine formulation. Thirty bovines were divided into three groups composed of 10 animals, each. Groups 1 and 2 were vaccinated by researchers based on good vaccination practices criteria. Group 1 was intramuscularly administered with the vaccine, Group 2 received it through subcutaneous route and Group 3 was vaccinated by breeders through subcutaneous route. Animals were selected and observed in vivo in three different moments (7, 28 and 45 days after vaccination). Subsequently, they were observed during post mortem inspection in order to assess the occurrence of vaccine abscesses. Vaccine abscesses were recorded in 40% of bovines in Group 1, in 50% of the ones in Group 2 and in 60% of those in Group 3. There was no significant difference between experimental groups based on the Chi-square test and on Cramer's V analysis; there was no significant difference among experimental groups. Excess of carcass parts presenting vaccine abscesses during post mortem inspection resulted in the meat loss of 1.775 kg in Group 1, of 2.303 kg in Group 2 and of 3.268 kg in Group 3. In conclusion, despite changes in bivalent foot-and-mouth disease vaccine formulation, care should be taken at vaccination time to minimize the occurrence of vaccine abscesses and, consequently, meat losses at slaughter, as well as to reduce losses in beef production chain.(AU)


O presente estudo objetivou identificar a ocorrência de abcessos em bovinos após a aplicação da vacina antiaftosa bivalente, como reação adversa aos componentes da nova formulação comercial. Foram avaliados 30 bovinos divididos em três grupos de 10 animais. Os Grupos 1 e 2 foram vacinados pelos pesquisadores seguindo os critérios de boas práticas de vacinação, sendo o Grupo 1 vacinado pela via intramuscular e o Grupo 2 pela via subcutânea, já o Grupo 3 foi vacinado pelo produtor rural utilizando a via subcutânea. Os animais foram isolados e observados in vivo em três momentos (7°, 28° e 45° dias após a vacinação), em seguida foram observados durante a inspeção post mortem para constatação da ocorrência de abscessos vacinais. Registrou-se a ocorrência de abscessos vacinais em 40% dos bovinos do Grupo 1, em 50% do grupo 2 e em 60% do grupo 3. Não houve diferença significativa entre os grupos experimentais segundo o teste do Qui-quadrado e a análise do V de Cramer. A partes cárneas excisadas das carcaças com abcessos vacinais durante a inspeção post mortem resultaram em uma perda cárnea de 1.775 kg no Grupo 1, de 2.303 kg no Grupo 2 e de 3.268 kg no Grupo 3. Conclui-se, que mesmo com a alteração da formulação da vacina antiaftosa, são necessários cuidados no ato da vacinação, a fim de minimizar a ocorrência de abscessos vacinais e consequentes perdas cárneas no ato do abate dos animais, diminuindo assim os prejuízos à cadeia produtiva da carne.(AU)


Subject(s)
Animals , Cattle , Foot-and-Mouth Disease Virus/immunology , Abscess/veterinary , Vaccines/adverse effects
2.
Acta Vet. Brasilica ; 14(1): 5-9, Apr. 8, 2020. ilus, tab
Article in English | VETINDEX | ID: biblio-1453199

ABSTRACT

Equine infectious anemia (EIA) is one of the most important diseases from the health and economic point of view for equidae breeding, as it does not have treatment and vaccines. The Brazilian Ministry of Agriculture, Livestock and Food Supply (MAPA) instituted mandatory sanitary measures that include the official diagnosis by the agar gel immunodiffusion (AGID) test and sacrifice of seropositive animals to control this disease. Seventy-two seronegative equines, challenged with different vaccines, were used to verify the occurrence of non-specific reactions in the AGID techniques. Five serological controls were performed one week after vaccination, at seven-day intervals. The results indicated that the use of vaccines in equines in a period that precedes the performance of laboratory tests for the diagnosis of EIA does not induce seroconversion. However, 11.11% of the equines vaccinated against influenza, encephalomyelitis, equine rhinopneumonitis, and tetanus, and 15.38% of those vaccinated against leptospirosis had non-specific negative reactions to AGID. In this study, there was a non-specific line in the AGID for EIA described by Ordinance No. 84/1992 by MAPA but already mentioned in the Normative Instruction 55 of 26 November 2018.


Anemia Infecciosa Equina é uma das enfermidades mais importantes sob o ponto de vista sanitário e econômico para a equideocultura, por não possuir tratamento e vacinas. Para controle desta doença, o Ministério da Agricultura, Pecuária e Abastecimento (MAPA) instituiu medidas sanitárias obrigatórias em todo território nacional que incluem o diagnóstico e sacrifício dos animais soropositivos. Para verificar a ocorrência de reações inespecíficas na técnica de IDGA utilizou-se 72 equinos soronegativos, desafiados com diferentes vacinas. Uma semana após a vacinação, realizou-se cinco controles sorológicos, em intervalos de sete dias. Os resultados indicaram que o uso de vacinas em equinos em período que antecede a realização de exames laboratoriais para diagnóstico de AIE, não induz a soroconversão. Entretanto, 11,11% dos equinos vacinados contra influenza, encefalomielite, rinopneumonite equina e tétano, e 15,38% dos que foram vacinados contra leptospirose apresentaram reações negativas inespecíficas ao IDGA. Neste estudo, verificou-se uma linha inespecífica no IDGA para AIE.


Subject(s)
Animals , Equine Infectious Anemia/diagnosis , Horses , Seroconversion , Infectious Anemia Virus, Equine/isolation & purification , Immunodiffusion/veterinary
3.
Acta Vet. bras. ; 14(1): 5-9, Mar. 24, 2020. ilus, tab
Article in English | VETINDEX | ID: vti-26024

ABSTRACT

Equine infectious anemia (EIA) is one of the most important diseases from the health and economic point of view for equidae breeding, as it does not have treatment and vaccines. The Brazilian Ministry of Agriculture, Livestock and Food Supply (MAPA) instituted mandatory sanitary measures that include the official diagnosis by the agar gel immunodiffusion (AGID) test and sacrifice of seropositive animals to control this disease. Seventy-two seronegative equines, challenged with different vaccines, were used to verify the occurrence of non-specific reactions in the AGID techniques. Five serological controls were performed one week after vaccination, at seven-day intervals. The results indicated that the use of vaccines in equines in a period that precedes the performance of laboratory tests for the diagnosis of EIA does not induce seroconversion. However, 11.11% of the equines vaccinated against influenza, encephalomyelitis, equine rhinopneumonitis, and tetanus, and 15.38% of those vaccinated against leptospirosis had non-specific negative reactions to AGID. In this study, there was a non-specific line in the AGID for EIA described by Ordinance No. 84/1992 by MAPA but already mentioned in the Normative Instruction 55 of 26 November 2018.(AU)


Anemia Infecciosa Equina é uma das enfermidades mais importantes sob o ponto de vista sanitário e econômico para a equideocultura, por não possuir tratamento e vacinas. Para controle desta doença, o Ministério da Agricultura, Pecuária e Abastecimento (MAPA) instituiu medidas sanitárias obrigatórias em todo território nacional que incluem o diagnóstico e sacrifício dos animais soropositivos. Para verificar a ocorrência de reações inespecíficas na técnica de IDGA utilizou-se 72 equinos soronegativos, desafiados com diferentes vacinas. Uma semana após a vacinação, realizou-se cinco controles sorológicos, em intervalos de sete dias. Os resultados indicaram que o uso de vacinas em equinos em período que antecede a realização de exames laboratoriais para diagnóstico de AIE, não induz a soroconversão. Entretanto, 11,11% dos equinos vacinados contra influenza, encefalomielite, rinopneumonite equina e tétano, e 15,38% dos que foram vacinados contra leptospirose apresentaram reações negativas inespecíficas ao IDGA. Neste estudo, verificou-se uma linha inespecífica no IDGA para AIE.(AU)


Subject(s)
Animals , Horses , Infectious Anemia Virus, Equine/isolation & purification , Equine Infectious Anemia/diagnosis , Seroconversion , Immunodiffusion/veterinary
4.
Rev. bras. saúde prod. anim ; 21: e2121022020, Feb. 14, 2020. ilus, tab
Article in English | VETINDEX | ID: biblio-1493843

ABSTRACT

The aim of the present study is to identify the occurrence of abscesses in cattle after the administration of bivalent foot-and-mouth disease vaccine as adverse reaction to components in the new commercial vaccine formulation. Thirty bovines were divided into three groups composed of 10 animals, each. Groups 1 and 2 were vaccinated by researchers based on good vaccination practices criteria. Group 1 was intramuscularly administered with the vaccine, Group 2 received it through subcutaneous route and Group 3 was vaccinated by breeders through subcutaneous route. Animals were selected and observed in vivo in three different moments (7, 28 and 45 days after vaccination). Subsequently, they were observed during post mortem inspection in order to assess the occurrence of vaccine abscesses. Vaccine abscesses were recorded in 40% of bovines in Group 1, in 50% of the ones in Group 2 and in 60% of those in Group 3. There was no significant difference between experimental groups based on the Chi-square test and on Cramer's V analysis; there was no significant difference among experimental groups. Excess of carcass parts presenting vaccine abscesses during post mortem inspection resulted in the meat loss of 1.775 kg in Group 1, of 2.303 kg in Group 2 and of 3.268 kg in Group 3. In conclusion, despite changes in bivalent foot-and-mouth disease vaccine formulation, care should be taken at vaccination time to minimize the occurrence of vaccine abscesses and, consequently, meat losses at slaughter, as well as to reduce losses in beef production chain.


O presente estudo objetivou identificar a ocorrência de abcessos em bovinos após a aplicação da vacina antiaftosa bivalente, como reação adversa aos componentes da nova formulação comercial. Foram avaliados 30 bovinos divididos em três grupos de 10 animais. Os Grupos 1 e 2 foram vacinados pelos pesquisadores seguindo os critérios de boas práticas de vacinação, sendo o Grupo 1 vacinado pela via intramuscular e o Grupo 2 pela via subcutânea, já o Grupo 3 foi vacinado pelo produtor rural utilizando a via subcutânea. Os animais foram isolados e observados in vivo em três momentos (7°, 28° e 45° dias após a vacinação), em seguida foram observados durante a inspeção post mortem para constatação da ocorrência de abscessos vacinais. Registrou-se a ocorrência de abscessos vacinais em 40% dos bovinos do Grupo 1, em 50% do grupo 2 e em 60% do grupo 3. Não houve diferença significativa entre os grupos experimentais segundo o teste do Qui-quadrado e a análise do V de Cramer. A partes cárneas excisadas das carcaças com abcessos vacinais durante a inspeção post mortem resultaram em uma perda cárnea de 1.775 kg no Grupo 1, de 2.303 kg no Grupo 2 e de 3.268 kg no Grupo 3. Conclui-se, que mesmo com a alteração da formulação da vacina antiaftosa, são necessários cuidados no ato da vacinação, a fim de minimizar a ocorrência de abscessos vacinais e consequentes perdas cárneas no ato do abate dos animais, diminuindo assim os prejuízos à cadeia produtiva da carne.


Subject(s)
Animals , Cattle , Abscess/veterinary , Vaccines/adverse effects , Foot-and-Mouth Disease Virus/immunology
5.
Semina Ci. agr. ; 40(6,supl.2): 3035-3044, 2019. ilus
Article in English | VETINDEX | ID: vti-25822

ABSTRACT

Studies on canine babesiosis in northeastern Brazil are scarce, although the weather conditions in this region are favorable for the development of the tick vector. This study determined the prevalence of Babesia vogeli in dogs sampled in Teresina, state of Piauí, northeast Brazil, using direct and indirect diagnostic methods and performed a phylogenetic analysis of 18S rRNA sequences. A total of 315 dogs were screened during routine care regardless of clinical suspicion. Blood was collected by jugular venipuncture to perform indirect immunofluorescence assay (IFA) and polymerase chain reaction (PCR) and for parasite screening in peripheral blood smears. Positivity was 2.2% (7/315) by microscopy, 4.8% (15/315) by PCR, and 48.6% (153/315) by IFA. PCR amplified a 602-bp fragment of the piroplasmid 18S rRNA gene, and sequence alignment and analysis revealed 99% homology with B. vogeli isolates from other regions of Brazil and other countries. In addition, there was high variability among sequences from other northeast states of Brazil. This study is the first to perform the molecular analysis of B. vogeli in Piauí. The results demonstrate that canine babesiosis is endemic in dogs sampled in Teresina and that PCR may be the method of choice to perform parasite screening in this region.(AU)


Estudos sobre a babesiose canina são escassos no Nordeste do Brasil, apesar das condições climáticas favoráveis ao desenvolvimento do carrapato vetor. Esta pesquisa objetivou determinar a ocorrência de Babesia vogeli em cães amostrados em Teresina, estado do Piauí, região Meio Norte do Brasil, através de métodos diretos e indiretos de diagnóstico, além de realizar análise filogenética das sequências 18S rRNA de piroplasmídeos obtidas no estudo. Foram avaliados 315 cães atendidos em clínicas veterinárias, sob qualquer suspeita clínica. Desses animais, foi colhido sangue por venopunção jugular para Reação de Imunofluorescência Indireta (RIFI) e Reação em Cadeia pela Polimerase (PCR). Além disso, esfregaços de sangue periférico foram realizados para pesquisa direta do parasita. A positividade dos animais foi de 2,2% (7/315) ao esfregaço sanguíneo, 4,8% (15/315) à PCR e 48,6% (153/315) à RIFI. O sequenciamento de amostras positivas à PCR resultou em um fragmento de 602 pb do gene 18S rRNA de piroplasmídeos, cujo alinhamento e análise da sequência revelaram 99% de homologia com isolados de B. vogeli de outras regiões do Brasil, além de outros países. É interessante ressaltar que, comparando isolados em diferentes estados do Nordeste, a homologia pode ser bastante variável. Esses são os primeiros resultados sobre a análise molecular de B. vogeli no Estado do Piauí. Além disso, este estudo demonstra que a babesiose canina é endêmica em cães de Teresina, Nordeste do Brasil, e que a PCR pode ser o método de escolha para diagnóstico da doença nessas áreas.(AU)


Subject(s)
Animals , Dogs , Parasites , Parasitic Diseases, Animal , Babesia/genetics , Babesia/parasitology , Babesia/pathogenicity , Babesiosis/blood , Babesiosis/diagnosis , Babesiosis/epidemiology , Babesiosis/genetics , Babesiosis/parasitology
6.
Semina ciênc. agrar ; 40(6,supl.2): 3035-3044, 2019. ilus
Article in English | VETINDEX | ID: biblio-1501575

ABSTRACT

Studies on canine babesiosis in northeastern Brazil are scarce, although the weather conditions in this region are favorable for the development of the tick vector. This study determined the prevalence of Babesia vogeli in dogs sampled in Teresina, state of Piauí, northeast Brazil, using direct and indirect diagnostic methods and performed a phylogenetic analysis of 18S rRNA sequences. A total of 315 dogs were screened during routine care regardless of clinical suspicion. Blood was collected by jugular venipuncture to perform indirect immunofluorescence assay (IFA) and polymerase chain reaction (PCR) and for parasite screening in peripheral blood smears. Positivity was 2.2% (7/315) by microscopy, 4.8% (15/315) by PCR, and 48.6% (153/315) by IFA. PCR amplified a 602-bp fragment of the piroplasmid 18S rRNA gene, and sequence alignment and analysis revealed 99% homology with B. vogeli isolates from other regions of Brazil and other countries. In addition, there was high variability among sequences from other northeast states of Brazil. This study is the first to perform the molecular analysis of B. vogeli in Piauí. The results demonstrate that canine babesiosis is endemic in dogs sampled in Teresina and that PCR may be the method of choice to perform parasite screening in this region.


Estudos sobre a babesiose canina são escassos no Nordeste do Brasil, apesar das condições climáticas favoráveis ao desenvolvimento do carrapato vetor. Esta pesquisa objetivou determinar a ocorrência de Babesia vogeli em cães amostrados em Teresina, estado do Piauí, região Meio Norte do Brasil, através de métodos diretos e indiretos de diagnóstico, além de realizar análise filogenética das sequências 18S rRNA de piroplasmídeos obtidas no estudo. Foram avaliados 315 cães atendidos em clínicas veterinárias, sob qualquer suspeita clínica. Desses animais, foi colhido sangue por venopunção jugular para Reação de Imunofluorescência Indireta (RIFI) e Reação em Cadeia pela Polimerase (PCR). Além disso, esfregaços de sangue periférico foram realizados para pesquisa direta do parasita. A positividade dos animais foi de 2,2% (7/315) ao esfregaço sanguíneo, 4,8% (15/315) à PCR e 48,6% (153/315) à RIFI. O sequenciamento de amostras positivas à PCR resultou em um fragmento de 602 pb do gene 18S rRNA de piroplasmídeos, cujo alinhamento e análise da sequência revelaram 99% de homologia com isolados de B. vogeli de outras regiões do Brasil, além de outros países. É interessante ressaltar que, comparando isolados em diferentes estados do Nordeste, a homologia pode ser bastante variável. Esses são os primeiros resultados sobre a análise molecular de B. vogeli no Estado do Piauí. Além disso, este estudo demonstra que a babesiose canina é endêmica em cães de Teresina, Nordeste do Brasil, e que a PCR pode ser o método de escolha para diagnóstico da doença nessas áreas.


Subject(s)
Animals , Dogs , Babesia/genetics , Babesia/parasitology , Babesia/pathogenicity , Babesiosis/diagnosis , Babesiosis/epidemiology , Babesiosis/genetics , Babesiosis/parasitology , Babesiosis/blood , Parasitic Diseases, Animal , Parasites
7.
Acta sci. vet. (Online) ; 42(suppl.1): Pub. 46, 30 jul. 2014. ilus
Article in Portuguese | VETINDEX | ID: vti-30970

ABSTRACT

Background: Transmissible venereal tumour (TVT) is a malignancy that in natural conditions develops in the genitalia of the dog. The nature of this transplantable tumor has been extensively studied, but it has not been possible to associate any viral particle to the development and spread of the disease. Coitus is considered the main form of transmission, related to the presentation of the classic TVT in the external genitalia of dogs, but although rare, it can cause metastasis. The aim of this study was to report two cases of genital presentation of this neoplasm, with metastatic lesions in the mammary gland, to contribute to the better understanding of its biological behavior. Cases: Two bitches, one mixed breed, with five years old and another, Pit Bull breed, with one year old, were presented with vulvar bleeding for eight months and 15 days, respectively. Lesions were observed in the vulva and inguinal mammary glands. Clinical examination showed, in two patients, a reddish mass located in the vulva. However, nodules of smooth consistency were identified in the right and left inguinal mammary glands of both dogs. With the exception of mammary lesion located in the right inguinal mixed breed bitch whose cytological diagnosis was lipoma, other lesions were diagnosed as TVT, once samples showed hypercellularity with homogeneous population of round cells with eccentric and...(AU)


Subject(s)
Animals , Female , Dogs , Venereal Tumors, Veterinary/complications , Neoplasm Metastasis , Mammary Neoplasms, Animal/complications , Mammary Glands, Animal/cytology
8.
Acta sci. vet. (Impr.) ; 42(suppl.1): Pub.46-30 jul. 2014. ilus
Article in Portuguese | VETINDEX | ID: biblio-1457261

ABSTRACT

Background: Transmissible venereal tumour (TVT) is a malignancy that in natural conditions develops in the genitalia of the dog. The nature of this transplantable tumor has been extensively studied, but it has not been possible to associate any viral particle to the development and spread of the disease. Coitus is considered the main form of transmission, related to the presentation of the classic TVT in the external genitalia of dogs, but although rare, it can cause metastasis. The aim of this study was to report two cases of genital presentation of this neoplasm, with metastatic lesions in the mammary gland, to contribute to the better understanding of its biological behavior. Cases: Two bitches, one mixed breed, with five years old and another, Pit Bull breed, with one year old, were presented with vulvar bleeding for eight months and 15 days, respectively. Lesions were observed in the vulva and inguinal mammary glands. Clinical examination showed, in two patients, a reddish mass located in the vulva. However, nodules of smooth consistency were identified in the right and left inguinal mammary glands of both dogs. With the exception of mammary lesion located in the right inguinal mixed breed bitch whose cytological diagnosis was lipoma, other lesions were diagnosed as TVT, once samples showed hypercellularity with homogeneous population of round cells with eccentric and...


Subject(s)
Female , Animals , Dogs , Mammary Glands, Animal/cytology , Neoplasm Metastasis , Mammary Neoplasms, Animal/complications , Venereal Tumors, Veterinary/complications
9.
Vet. Not. (Online) ; 17(2): 117-122, 2011. ilus
Article in Portuguese | VETINDEX | ID: biblio-1401844

ABSTRACT

O trabalho descreve dois casos de cães atendidos no Hospital Veterinário da Universidade Federal do Piauí. Os animais apresentavam intensa dispnéia e retração abdominal. Foi diagnosticada hérnia diafragmática por meio de radiografia tóraco-abdominal. No primeiro caso, o animal foi eutanasiado, pois era portador de leishmaniose visceral canina. A necropsia confirmou o diagnóstico de hérnia diafragmática. Durante o exame macroscópico, observou-se que parte das alças intestinais, omento, fígado e baço estavam localizados na cavidade torácica. O diafragma estava incompleto na porção ventral, sem qualquer sinal de traumatismo. O fígado preenchia o espaço aberto no diafragma. O pulmão direito estava com lobos atróficos. Devido à ausência de sinais de traumatismo à anamnese e necropsia, supõe-se que a hérnia era congênita. No segundo caso foi realizada herniorrafia, com sucesso. Na anamnese, o proprietário afirmou que não houve trauma, embora o cão apresentasse dificuldade respiratória desde filhote. Durante o procedimento cirúrgico foi observada a presença de alças intestinais, baço e fígado na cavidade torácica. O diafragma apresentava bordas com superfícies lisas, sem alterações circulatórias, indicando ausência de trauma. Estes sinais, associados às informações da anamnese, levaram a suspeita de hérnia congênita. Os casos foram considerados raros porque os animais conseguiram sobreviver durante anos. Além disso, no segundo caso o tratamento cirúrgico foi bem sucedido mesmo sem implante de membrana biológica.(AU)


This work describes two cases of dogs examined at the Veterinary Hospital of the Federal University of Piauí. The animals had severe dyspnea and abdominal retraction. Diaphragmatic hernia was diagnosed by radiography thoracoabdominal. In the first case, the animal was euthanized because he had the canine visceral leishmaniasis. The autopsy confirmed the diagnosis of diaphragmatic hernia. During the macroscopic examination, it was observed that part of the bowel, omentum, liver and spleen were located in the thoracic cavity. The diaphragm was incomplete on the ventral part, without any sign of trauma. The liver filled the opened space in the diaphragm. The right lung lobe was atrophic. The absence of trauma signs, with the anamnesis and autopsy, it was assumed that the hernia was congenital. In the second case, it was performed a successfully herniorrhaphy. According to the anamnesis, the owner said that there was no trauma, although the breathing difficulty the dog presented since he was a puppy. During surgery, we observed the presence of small bowel, spleen and liver in the thoracic cavity. The diaphragm had edges with smooth surfaces, without circulatory changes, indicating the absence of trauma. These signs, assimilated with the information from the anamnesis, led to suspect of congenital hernia. The cases were considered rare because the animals survived for years. Moreover, in the second case, the surgery treatment was successful without the biological membrane implantation.(AU)


Subject(s)
Animals , Dogs , Dog Diseases/diagnostic imaging , Hernias, Diaphragmatic, Congenital/diagnostic imaging , Radiography, Thoracic/instrumentation , Dyspnea/veterinary , Ectopia Cordis/veterinary
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