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Abstract

A specific recombinant antigen was evaluated for its immunodiagnostic potential in an ELISA. The antigen was used as a glutathione S-transferase (GST) fusion protein (DvGST3-14) or as a pure recombinant parasite protein (Dv3-14). A total of 55 sera from cattle experimentally infected with D....

Author(s)
Schnieder, T.
Citation
Parasitology Research, 1992, 78, 4, pp 298-302
Abstract

In 2 field trials vaccination or different anthelmintic treatments against D. viviparus infections were used in 6 groups of first year grazing cattle. The antibody response to lungworm infections was determined using an ELISA. Cattle treated once or repeatedly at long intervals with levamisole...

Author(s)
Schnieder, T.; Bellmer, A.; Wheeler, S.
Citation
Journal of Veterinary Medicine. Series B, 1992, 39, 8, pp 563-570
Abstract

In Lower Saxony, 103 of 259 (39.9%) first year grazing cattle herds were found to be serologically positive by ELISA for antibodies against D. viviparus. Risk of infection was higher for cattle herds with an early turnout and a long grazing period, i.e. more than 150 days. Herds that were observed...

Author(s)
Schnieder, T.; Bellmer, A.; Tenter, A. M.
Citation
Veterinary Parasitology, 1993, 47, 3-4, pp 289-300
Abstract

An ELISA using a protein extract from adult D. viviparus as antigen was evaluated with respect to its quality and suitability as a diagnostic method for epidemiological studies on dictyocaulosis. In experimentally infected animals, D. viviparus-specific antibodies were first detected between 30 and ...

Author(s)
Tenter, A. M.; Bellmer, A.; Schnieder, T.
Citation
Veterinary Parasitology, 1993, 47, 3-4, pp 301-314
Abstract

Blood samples were collected from 252 herds in Lower Saxony, Germany, after the end of the grazing season at between one and 10 weeks after housing and again before turnout in spring of the following year. Lungworm vaccine was not used in any of the herds but respiratory symptoms were observed by...

Author(s)
Schnieder, T.; Kohler-Bellmer, S.
Citation
Veterinary Record, 1993, 132, 7, pp 167
Abstract

An immunoblot based dipstick test for the serodiagnosis of infections with Dictyocaulus viviparus using a recombinant antigen was evaluated. Lungworm infections in cattle could be detected with > 99% specificity and >99% sensitivity between days 30 and 85 after experimental infection. Using...

Author(s)
Schnieder, T.
Citation
Research in Veterinary Science, 1993, 54, 3, pp 278-282
Abstract

In two trials 5 calves were each experimentally infected on 3 consecutive days with a total number of either 30 D. viviparus larvae per kg body weight (trial A) or 3 larvae/kg body weight (trial B). Five calves served as non-infected controls. Infected cattle in trial A developed severe clinical...

Author(s)
Schnieder, T.; Daugschies, A.
Citation
Journal of Veterinary Medicine. Series B, 1993, 40, 3, pp 170-180