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Abstract

Larvae of D. viviparus were cultured in experimental units of 200 g of cattle faeces placed in semi-transparent trays. In each of 4 experimental series, chlamydospores of the nematode-trapping fungus Duddingtonia flagrans were admixed to 3 of 6 faecal cultures at a concentration of 50 000...

Author(s)
Henriksen, S. A.; Larsen, M.; Grønvold, J.; Nansen, P.; Wolstrup, J.
Citation
Acta Veterinaria Scandinavica, 1997, 38, 2, pp 175-179
Abstract

Storage of cattle faeces at room temperature resulted in a rapid decline in the numbers of Dictyocaulus viviparus larvae recoverable by the Baermann technique. Storage at 8 deg C, however, improved the recovery rate over the first 6 to 15 days and substantial recoveries were achieved after 35 to 55 ...

Author(s)
Fox, M. T.
Publisher
Martinus Nijhoff for the Commission of the European Communities., The Hague, Netherlands
Citation
Epidemiology and control of nematodiasis in cattle. An animal pathology Workshop in the CEC Programme of Coordination of Agricultural Research, Royal Veterinary and Agricultural University, Copenhagen, Denmark, 4-6 February 1980. (Current Topics in Veterinary Medicine and Animal Science Vol.9.), 1981, pp 17-20
Abstract

After a day's storage of cattle faeces at 20-23 deg C the number of Dictyocaulus viviparus larvae recoverable by the Baermann technique quickly declined. In one of 2 experiments many of the larvae were recovered after the first day from the water condensed inside the plastic bag in which the faeces ...

Author(s)
Cremers, H. J. W. M.
Publisher
Martinus Nijhoff for the Commission of the European Communities., The Hague, Netherlands
Citation
Epidemiology and control of nematodiasis in cattle. An animal pathology Workshop in the CEC Programme of Coordination of Agricultural Research, Royal Veterinary and Agricultural University, Copenhagen, Denmark, 4-6 February 1980. (Current Topics in Veterinary Medicine and Animal Science Vol.9.), 1981, pp 11-14
Abstract

Work in Scotland which indicated that outbreaks of parasitic bronchitis (Dictyocaulus viviparus) in calves can arise from larvae which have overwintered in the soil is recapitulated [see Hm/A 48, 6091].

Author(s)
Duncan, J. L.; Urquhart, G. M.
Publisher
Martinus Nijhoff for the Commission of the European Communities., The Hague, Netherlands
Citation
Epidemiology and control of nematodiasis in cattle. An animal pathology Workshop in the CEC Programme of Coordination of Agricultural Research, Royal Veterinary and Agricultural University, Copenhagen, Denmark, 4-6 February 1980. (Current Topics in Veterinary Medicine and Animal Science Vol.9.), 1981, pp 241-244
Abstract

A technique for estimating pasture contamination with Dictyocaulus viviparus larvae by examining the herbage is described. Samples are taken from near the faecal pats where the larvae are concentrated; a 2nd sample may be taken at least 100 cm away to obtain information on larval dispersal. The...

Author(s)
Jorgensen, R. J.
Publisher
Martinus Nijhoff for the Commission of the European Communities., The Hague, Netherlands
Citation
Epidemiology and control of nematodiasis in cattle. An animal pathology Workshop in the CEC Programme of Coordination of Agricultural Research, Royal Veterinary and Agricultural University, Copenhagen, Denmark, 4-6 February 1980. (Current Topics in Veterinary Medicine and Animal Science Vol.9.), 1981, pp 3-9
Abstract

In an experiment between 1 August and 2 October 1989, 27 Black Pied Danish heifer calves, aged 9-12 months, that had grazed since May on permanent pasture with moderate herbage infectivity were moved to another infected permanent pasture. They were divided into 3 groups of 9 animals and given...

Author(s)
Steffan, P.; Nansen, P.
Citation
Acta Veterinaria Scandinavica, 1990, 31, 2, pp 237-242
Abstract

A series of experiments was carried out to examine the effects of 2 different isolates of Duddingtonia flagrans to reduce the number of free-living larvae of Dictyocaulus viviparus. A laboratory dose-titration assay showed that isolates CI3 and Troll A of Duddingtonia flagrans significantly reduced ...

Author(s)
Fernández, A. S.; Larsen, M.; Nansen, P.; Grønvold, J.; Henriksen, S. A.; Bjørn, H.; Wolstrup, J.
Citation
Veterinary Parasitology, 1999, 85, 4, pp 289-304
Abstract

Inactivation of selected bovine parasites was measured quantitatively during anaerobic digestion of bovine slurry in small-scale batch digesters. Mesophilic (35°C) and thermophilic (53°C) anaerobic digestion accelerated the inactivation of parasitic nematodes, compared to survival under...

Author(s)
Olson, J. E.; Nansen, P.
Citation
Biological Wastes, 1987, 22, 2, pp 107-114
Abstract

Inactivation of selected bovine parasites was measured quantitatively during anaerobic digestion of bovine slurry in small-scale batch digesters. Mesophilic (35°C) and thermophilic (53°C) anaerobic digestion accelerated the inactivation of parasitic nematodes, compared to survival under...

Author(s)
Olsen, J. E.; Nansen, P.
Citation
Biological Wastes, 1987, 22, 2, pp 107-114
Abstract

Interactions between A. oligospora and third-stage larvae of 9 animal-parasitic nematodes were tested in vitro. The trap-inducing capabilities of Cooperia oncophora, C. curticei, Haemonchus contortus and Ostertagia ostertagi and of equine cyathostomes were almost comparable to those of free-living...

Author(s)
Nansen, P.; Grønvold, J.; Henriksen, S. A.; Wolstrup, J.
Citation
Veterinary Parasitology, 1988, 26, 3-4, pp 329-337

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