RESUMO
This report focuses on the diagnostic laboratory and necropsy findings in 4 llamas with adenovirus-associated hepatitis or pneumonia. In the 2 young llamas, clinical illness was characterized by chronic respiratory tract disease. In the 2 adult llamas, clinical illness was characterized by neurologic signs and a history of respiratory tract disease. Histologic examination, electron microscopy, virus isolation, and fluorescent antibody results indicated that adenovirus infection was associated with disease in all 4 llamas.
Assuntos
Infecções por Adenoviridae/veterinária , Camelídeos Americanos , Hepatite Viral Animal/patologia , Pneumonia Viral/veterinária , Adenoviridae/isolamento & purificação , Adenoviridae/ultraestrutura , Infecções por Adenoviridae/patologia , Animais , Feminino , Fígado/microbiologia , Fígado/patologia , Fígado/ultraestrutura , Pulmão/microbiologia , Pulmão/patologia , Masculino , Microscopia Eletrônica , Pneumonia Viral/patologia , Vírion/isolamento & purificação , Vírion/ultraestruturaRESUMO
Eight of 19 calves born to bovine viral diarrhea virus (BVDV)-negative and -immunocompetent dams were determined to be infected with a noncytopathic strain of BVDV. Six of the 8 calves had diarrhea and 2 had no clinical signs of disease. In 3 euthanatized calves, lesions consistent with mucosal disease were found throughout the gastrointestinal tract, and the virus was isolated from the spleen, lymph nodes, and small intestine. In 5 calves, BVDV was isolated from mononuclear cells in blood samples obtained 21 days apart, indicating persistent infection. The virus was not isolated from sera obtained from 2 calves, with chronic nonclinical infections, that had neutralizing antibody titers > or = 1:512 against bovine viral diarrhea-Singer virus and titers > or = 1:256 against the persistent BVDV. Twenty-one days after vaccination with a vaccine that contained inactivated noncytopathic and cytopathic biotypes of BVDV, 4 of 5 persistently infected calves had neutralizing antibody titers < or = 1:4 against the bovine viral diarrhea-Singer virus and their persistent virus. Prior to vaccination, 2 of 11 virus-negative calves had neutralizing antibody titers < or = 1:128 against the bovine viral diarrhea-Singer virus, and after vaccination, only 1 virus-negative calf had a titer < or = 1:512. At 149 days after revaccination and prior to weaning, 4 virus-negative calves had neutralizing antibody titers < or = 1:512 (range, 1:16 to 1:384). Under the specific conditions in this herd, we were not able to detect a beneficial effect of vaccination.(ABSTRACT TRUNCATED AT 250 WORDS)
Assuntos
Doença das Mucosas por Vírus da Diarreia Viral Bovina/epidemiologia , Surtos de Doenças/veterinária , Animais , Anticorpos Antivirais/sangue , Bovinos , Diarreia/epidemiologia , Diarreia/veterinária , Vírus da Diarreia Viral Bovina/imunologia , Vírus da Diarreia Viral Bovina/isolamento & purificação , Sistema Digestório/patologia , Feminino , Imunoglobulina G/sangue , Leucócitos Mononucleares/microbiologia , Masculino , Viremia/epidemiologia , Viremia/microbiologia , Viremia/veterináriaAssuntos
Bison/parasitologia , Dípteros/imunologia , Hipersensibilidade/veterinária , Hipodermose/veterinária , Inseticidas/efeitos adversos , Compostos Organofosforados , Animais , Hipersensibilidade/etiologia , Hipodermose/complicações , Hipodermose/tratamento farmacológico , Inseticidas/uso terapêutico , Larva/imunologiaRESUMO
A litter of 5-week-old Doberman Pinschers with pustular dermatitis was treated dermally with a hexachlorophene-containing emulsion. Shortly after a second treatment, all of the puppies developed neurologic signs consisting of muscle tremors, ataxia, and apparent muscle weakness. The clinical history and signs, histologic lesions within the central nervous system, and measurement of hexachlorophene in liver and kidney tissue confirmed a diagnosis of hexachlorophene toxicosis.
Assuntos
Doenças do Cão/induzido quimicamente , Hexaclorofeno/intoxicação , Animais , Animais Recém-Nascidos , Sistema Nervoso Central/patologia , Doenças do Cão/diagnóstico , Doenças do Cão/patologia , Cães , Hexaclorofeno/análise , Rim/química , Fígado/química , Intoxicação/diagnóstico , Intoxicação/patologia , Intoxicação/veterináriaRESUMO
Extraskeletal osteosarcoma (ESOS) of the spleen and jejunum was diagnosed in 2 dogs. As an extremely uncommon type of tumor that has proven difficult to treat, ESOS is associated with high rate of local recurrence and metastatic disease. Extraskeletal osteosarcoma principally affects older dogs, has no apparent breed predilection, and may develop more frequently in males. The cause of ESOS is unknown, but may involve malignant metaplasia of pluripotential mesenchymal cells into osteoblasts. Macroscopically, ESOS usually is observed as a hard mass and may appear similar to calcified hematoma or myositis ossificans. The classic radiographic appearance of ESOS is a soft tissue mass with focal mineralization and without adjacent bone involvement.
Assuntos
Doenças do Cão/patologia , Neoplasias do Jejuno/veterinária , Osteossarcoma/veterinária , Neoplasias Esplênicas/veterinária , Animais , Cães , Feminino , Neoplasias do Jejuno/diagnóstico por imagem , Neoplasias do Jejuno/patologia , Jejuno/patologia , Osteossarcoma/patologia , Radiografia , Neoplasias Esplênicas/diagnóstico por imagem , Neoplasias Esplênicas/patologiaAssuntos
Exostose Múltipla Hereditária/veterinária , Doenças dos Ovinos/diagnóstico , Animais , Exostose Múltipla Hereditária/diagnóstico , Exostose Múltipla Hereditária/diagnóstico por imagem , Exostose Múltipla Hereditária/genética , Exostose Múltipla Hereditária/patologia , Radiografia , Ovinos , Doenças dos Ovinos/diagnóstico por imagem , Doenças dos Ovinos/genética , Doenças dos Ovinos/patologiaRESUMO
Two horse farms, on which there was a high incidence of proven and suspected equine degenerative myeloencephalopathy (EDM), were studied. Symmetric ataxia and paresis, along with laryngeal adductor, cervicofacial, local cervical, and cutaneous trunci hyporeflexia, characterized the syndrome. Serum vitamin E concentration reflected a deficient state in affected and unaffected horses on both farms when compared with selected reference groups and with published values. A high incidence of the disease was evident in offspring of two particular sires on one farm. Vitamin E supplementation resulted in correction of the deficient state in most horses and was associated with a drastic reduction in the incidence of EDM on one farm from 40% to less than 10% the year following vitamin E supplementation. In addition, during the last year, the severity of signs in the few cases was dramatically reduced. This information substantiates the hypothesis that EDM is a vitamin E-responsive disorder of Equidae with a possible familial predisposition.
Assuntos
Tronco Encefálico/patologia , Doenças dos Cavalos/genética , Doenças da Medula Espinal/veterinária , Deficiência de Vitamina E/veterinária , Animais , Ataxia/genética , Ataxia/veterinária , Encefalopatias/tratamento farmacológico , Encefalopatias/genética , Encefalopatias/veterinária , Feminino , Cavalos , Masculino , Paralisia/genética , Paralisia/veterinária , Reflexo Anormal/genética , Reflexo Anormal/veterinária , Doenças da Medula Espinal/tratamento farmacológico , Doenças da Medula Espinal/genética , Vitamina E/uso terapêutico , Deficiência de Vitamina E/tratamento farmacológico , Deficiência de Vitamina E/genéticaAssuntos
Doenças do Gato/patologia , Esofagite/veterinária , Gastrite/veterinária , Infecções por Nematoides/veterinária , Faringite/veterinária , Gastropatias/veterinária , Estomatite/veterinária , Animais , Doenças do Gato/parasitologia , Gatos , Esofagite/complicações , Esofagite/patologia , Feminino , Gastrite/complicações , Gastrite/patologia , Infecções por Nematoides/patologia , Faringite/complicações , Faringite/patologia , Gastropatias/parasitologia , Gastropatias/patologia , Estomatite/complicações , Estomatite/patologiaRESUMO
This article summarizes the methods of euthanasia in poultry and food-producing animals and details some of the advantages and disadvantages of specific methods. Specific recommendations are made for each type of animal, with alternative methods for special circumstances. Reasons are given for recommending methods that are not "first-choice methods" of the AVMA Panel on Euthanasia. Detailed descriptions are included for selected methods of euthanasia.