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Abstract

Artificially prepared cow pats containing O. ostertagi eggs were deposited on 2 pasture plots near Copenhagen, Denmark, in May, June and July 1986. Half of the cow pats, placed on one plot, were inoculated with 2000 conidia/g faeces of A. oligospora. On the other plot fungus-free control cow pats...

Author(s)
Grønvold, J.; Nansen, P.; Henriksen, S. A.; Thylin, J.; Wolstrup, J.
Citation
Journal of Helminthology, 1988, 62, 4, pp 271-280
Abstract

Artificially prepared cow pats containing O. ostertagi eggs were deposited on 2 comparable grazing plots in Denmark at weekly intervals during June and July 1987. Before deposition the cow pats, on the one plot, were inoculated with 0.250 g mycelial fragments/kg of faeces of A. oligospora. On the...

Author(s)
Grønvold, J.; Henriksen, S. A.; Nansen, P.; Wolstrup, J.; Thylin, J.
Citation
Journal of Helminthology, 1989, 63, 2, pp 115-126
Abstract

An experiment was designed to examine whether P. pulmonarius could destroy the preparasitic stages of Ostertagia ostertagi and Cooperia oncophora. Larvae of the trichostrongyles were obtained by culturing faeces collected from experimentally infected calves. Batches of preinfective (1st and 2nd...

Author(s)
Larsen, M.; Nansen, P.
Citation
Acta Veterinaria Scandinavica, 1990, 31, 4, pp 509-510
Abstract

An experiment was designed to test the survival and performance of stress selected nematophagous fungi after passage through the gastro-intestinal tract of Danish cattle. Ruminating calves were fed daily with a fixed amount of fungal material grown on barley grains. The excreted dung was collected...

Author(s)
Larsen, M.; Wolstrup, J.; Henriksen, S. A.; Grønvold, J.; Nansen, P.
Citation
Journal of Helminthology, 1992, 66, 2, pp 137-141
Abstract

An attempt was made to control Ostertagia ostertagi by feeding the nematode trapping fungus Duddingtonia flagrans (DSM 6703) to grazing calves. One group of calves (group E) was fed the fungal material in the first 2 months of the grazing season while another group was a non-treated control group...

Author(s)
Wolstrup, J.; Grønvold, J.; Henriksen, S. A.; Nansen, P.; Larsen, M.; Bøgh, H. O.; Ilsøe, B.
Citation
Journal of Helminthology, 1994, 68, 2, pp 175-180
Abstract

A study was conducted in the 1993 grazing season in Denmark with yearling calves exposed to a pasture with a natural mixed trichostrongyle larval infection. It was shown that daily feeding with the microfungus Duddingtonia flagrans during the first 2 months of the season led to a lowered herbage...

Author(s)
Larsen, M.; Nansen, P.; Wolstrup, J.; Grønvold, J.; Henriksen, S. A.; Zorn, A.
Citation
Veterinary Parasitology, 1995, 60, 3/4, pp 321-330
Abstract

Strategic feeding of first-season Friesian heifer calves, each inoculated with 5000 infective larvae of Ostertagia ostertagi, with the microfungus Duddingtonia flagrans (DSM 6703) grown on barley grain at the rate of 200 g dry weight/animal/day, with ∼106 chlamydospores/g, throughout the first 3...

Author(s)
Nansen, P.; Larsen, M.; Grønvold, J.; Wolstrup, J.; Zorn, A.; Henriksen, S. A.
Citation
Parasitology Research, 1995, 81, 5, pp 371-374