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An experimental infection (II) to investigate the importance of indirect classical swine fever virus transmission by excretions and secretions of infected weaner pigs.
pen) were housed and inoculated with CSFV. Experimental infection was successful in all pigs. The infected pigs were kept in the pens for a period of 15 days after which the pens were depopulated and ...
Reduced proviral loads during primo-infection of sheep by Bovine Leukemia virus attenuated mutants.
consecutive to infection of sheep (e.g. primo-infection) by Bovine leukemia virus mutants are largely unknown. In order to better understand the mechanisms associated with this period, we aimed at analyzing ...
[Clinical signs and diagnosis of a severe primary infection with BVDV subtype 1b in a dairy herd].
Infectious Serotyping Time Factors Abstract: As a result of a BVDV infection in a herd consisting of 95 adult cattle 17 cows aborted their calves within a period of 3.5 months, one third got severe diarrhoea, ...
An experimental infection to investigate the indirect transmission of classical swine fever virus by excretions of infected pigs.
first 3 weeks of the experiment, the pens were neither cleaned nor disinfected. During the observation period, none of the susceptible pigs became infected. This result indicates that CSF virus spread via ...
An E2 sub-unit marker vaccine does not prevent horizontal or vertical transmission of classical swine fever virus.
the definition of the infectious period, two different estimates of R0 were calculated (R0 =14.8 and 3.3), both significantly larger than 1 (P <0.01). In three out of the eight vaccinated pregnant ...
An experimental infection with classical swine fever virus in pregnant sows: transmission of the virus, course of the disease, antibody response and effect on gestation.
CSF infection could be diagnosed earlier and during a longer period when the leucocyte count or polymerase chain reaction were used in comparison with virus isolation in whole blood (P < 0.05). The ...
Classical swine fever virus: a second ring test to evaluate RT-PCR detection methods.
Minimum requirements for the inclusion of adequate controls and periodic proficiency testing are proposed. Health Topics: Animal health Category: A1 FOS Classification: 4.03 Veterinary science ...
Production of bovine herpesvirus type 1-seronegative latent carriers by administration of a live-attenuated vaccine in passively immunized calves.
became clearly BHV-1 seronegative by different serological tests, as did uninfected control calves after the disappearance of maternal antibodies, and they remained so for long periods. A cell-mediated ...
Dietary L-carnitine supplementation increases antigen-specific immunoglobulin G production in broiler chickens.
significantly influence body-weight gain: cockerels were heavier than females and this became most evident in the second half of the rearing period. Further, lowering the temperature increased body weight. In ...
Development of immunocompetence of broiler chickens.
chicks were BSA-immunised and Ig responses were measured for a longer period up to the age of 28 days. The IgG response of chicks immunised at 1 day of age was lower and occurred later (from 28 DPI) than ...