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Résultats de la recherche - 35 results
Improved vaccination against Newcastle disease by an in ovo recombinant HVT-ND combined with an adjuvanted live vaccine at day-old.
live ND vaccine co-administrated or not with chitosan by oculo-nasal route. The induced vaccinal immune responses and conferred protection against a challenge with a circulating NDV velogenic ...
Comparative pathogenesis of an avian H5N2 and a swine H1N1 influenza virus in pigs.
swine virus, the AIV produced lower virus titers and fewer antigen positive cells at all levels of the respiratory tract. The respiratory part of the nasal mucosa in particular showed only rare AIV ...
Humoral, cell-mediated and mucosal immunity induced by oculo-nasal vaccination of one-day-old SPF and conventional layer chicks with two different live Newcastle disease vaccines.
immunity was evaluated after oculo-nasal vaccination of day-old chickens. The preferential replication sites for each vaccine strain were investigated by screening different tissues using quantitative ...
Detection of tetracycline-resistant and susceptible pasteurellaceae in the nasopharynx of loose group-housed calves.
calves with no history of antimicrobial treatment prior to sampling. The presence of subpopulations of tetracycline-resistant Pasteurellaceae was also investigated. Nasal swabs from 61 loose group-housed, ...
Effect of challenge dose and age in experimental infection of pigs with encephalomyocarditis virus.
20-day-old pigs. Viraemia, and nasal and faecal excretions were detected in all groups and lasted 1-3 days, except for the 105-day-old pigs whose symptoms lasted for an additional day. Health Topics: Animal ...
Isolation of a glycoprotein E-deleted bovine herpesvirus type 1 strain in the field.
Abstract: During a field trial to evaluate the efficacy of repeated vaccinations with bovine herpesvirus type 1 (BHV-1) marker vaccines, a glycoprotein E (gE)-negative BHV-1 strain was isolated from the nasal ...
Patterns of Mycoplasma hyopneumoniae infections in Belgian farrow-to-finish pig herds with diverging disease-course.
and management conditions were good whereas these conditions were poor in the subclinically infected herds. In each herd, serum antibodies against Mh were detected in pigs of different ages and nasal ...
Effects of inhalation of dust and endotoxin on respiratory tracts of pigs.
Inhalation Exposure L-Lactate Dehydrogenase Leukocyte Count Lung Nasal Lavage Fluid Radioimmunoassay Random Allocation Respiratory Tract Diseases Swine Swine Diseases Abstract: OBJECTIVE: To assess the effects ...
Detection of foot-and-mouth disease by reverse transcription polymerase chain reaction and virus isolation in contact sheep without clinical signs of foot-and-mouth disease.
in saliva (mouth swabs), followed by nasal secretion and sera. Faecal material, wool and milk were less suitable. The period of detection with the highest frequency of positive isolations was between ...
An experimental infection with classical swine fever virus in weaner pigs. I. Transmission of the virus, course of the disease, and antibody response.
Logistic Models Nasal Mucosa prevalence Random Allocation Survival Analysis Swine Time Factors Viremia Virus Shedding Abstract: The spread of Classical Swine Fever (CSF) virus (strain Lorraine), originally ...