Dimander, Sten-Olof
- National Veterinary Institute (SVA)
Abstract
The size and composition of the nematode assemblage in soil under faecal pats derived from young cattle treated or untreated with either ivermectin sustained-release boluses, or the nematophagous fungus Duddingtonia flagrans , were studied in each of three years. Soil samples taken 4, 6, 8 and 10 weeks after four deposition dates in 1998 showed significant temporal effects in many taxa and treatment effects in a few genera. In 2000, soil samples taken 10 weeks after deposition in July, August and September showed treatment effects in the plant-associated Tylenchus and Cephalenchus , and the bacterial-feeding Cephalobus 1 and Cephalobus 2 taxa. However, overall it was found that the nematode assemblages were similar below all three types of pat, and the assemblages varied with the season of deposition. D. flagrans , the novel biological control agent being tested against the free-living stages of nematode parasites of cattle, had no detectable impact on the size or the structure of the soil nematode communities under the faecal pats.
Keywords
bacterial-feeding nematodes; Cephalobidae; Duddingtonia flagrans; environmental impact; ivermectin; nutrient cycling; pasture; soil
Published in
Acta Agriculturae Scandinavica, Section A - Animal Science
2003, volume: 53, number: 4, pages: 197-206
Publisher: TAYLOR & FRANCIS AS
SLU Authors
Waller, Peter J.
- National Veterinary Institute (SVA)
Höglund, Johan
- Department of Animal Biosciences, Swedish University of Agricultural Sciences
- Department of Animal Biosciences, Swedish University of Agricultural Sciences
UKÄ Subject classification
Pathobiology
Publication identifier
- DOI: https://doi.org/10.1080/09064700310012962
Permanent link to this page (URI)
https://res.slu.se/id/publ/40882