Document Detail


A new isolate of the nematophagous fungus Duddingtonia flagrans a biological control agent against free-living larvae of horse strongyles.
MedLine Citation:
PMID:  10596930     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
An experiment was carried out in 1997 to test the efficacy of an isolate of the microfungus Duddingtonia flagrans against free-living stages of horse strongyles under conditions in the field and to assess the eventual effect of the fungus on the normal degradation of faeces. Faecal pats were made from faeces of a naturally strongyle infected horse, which had been fed fungal material at a dose level of 106 fungal unit/kg bwt. Control pats without fungi were made from faeces collected from the same animal just before being fed fungi. Faecal cultures set up for both groups of faeces to monitor the activity of the fungus under laboratory conditions showed that the fungus significantly reduced the number of infective third-stage larvae (L3) by an average of 98.4%. Five faecal pats from each batch of faeces were deposited on pasture plots at 3 times during spring-summer. The herbage around each pat was sampled fortnightly to recover L3 transmitted from faeces. The results showed that the herbage infectivity around fungus-treated pats was reduced by 85.8-99.4%. The remaining faecal material at the end of each sampling period was collected, and the surviving L3 were extracted. Significantly fewer larvae were recovered from the fungus-treated pats. Analysis of wet and dry weight of the collected pats, as well as their organic matter content, were performed to compare the degradation of faeces of both groups. The results indicated that the presence of the fungus did not alter the degradation of the faeces.
Authors:
A Silvina Fernández; E Henningsen; M Larsen; P Nansen; J Grønvold; J Søndergaard
Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Equine veterinary journal     Volume:  31     ISSN:  0425-1644     ISO Abbreviation:  Equine Vet. J.     Publication Date:  1999 Nov 
Date Detail:
Created Date:  2000-02-24     Completed Date:  2000-02-24     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0173320     Medline TA:  Equine Vet J     Country:  ENGLAND    
Other Details:
Languages:  eng     Pagination:  488-91     Citation Subset:  IM    
Affiliation:
Danish Centre for Experimental Parasitology, The Royal Veterinary and Agricultural University, Frederiksberg C.
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MeSH Terms
Descriptor/Qualifier:
Animal Feed / microbiology
Animals
Feces / microbiology,  parasitology
Horses
Larva
Mitosporic Fungi / physiology*
Parasite Egg Count / veterinary
Pest Control, Biological*
Strongyle Infections, Equine / prevention & control*
Strongylus*
Comments/Corrections
Comment In:
Equine Vet J. 1999 Nov;31(6):449-50   [PMID:  10596922 ]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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