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Efficacy of the nematode-trapping fungus Duddingtonia flagrans against infections by Haemonchus and Trichostrongylus species in lambs at pasture

Published online by Cambridge University Press:  01 December 2007

R.A. Rocha ,
J.V. Araújo  and
A.F.T. Amarante
R.A. Rocha*
Affiliation:
UNESP, São Paulo State University, Instituto de Biociências, Departamento de Parasitologia, Caixa Postal 510, CEP 18618-000, Botucatu-SP, Brazil
J.V. Araújo
Affiliation:
Departamento de Veterinária, Universidade Federal de Viçosa, CEP 36570-000, Viçosa, MG, Brazil
A.F.T. Amarante
Affiliation:
UNESP, São Paulo State University, Instituto de Biociências, Departamento de Parasitologia, Caixa Postal 510, CEP 18618-000, Botucatu-SP, Brazil
*
*Author for correspondence E-mail: rrabdallah@hotmail.com
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Abstract

The efficacy of the nematode-trapping fungus Duddingtonia flagrans against infections by trichostrongyle nematodes in sheep was assessed throughout 6 months. Twenty Ile de France lambs were divided into two groups (control and treated groups), which were kept in separate pastures. Animals of the treated group were fed with D. flagrans twice a week (Tuesdays and Fridays). Pellets were prepared with the fungus mycelia in liquid culture medium and contained approximately 20% fungus. They were mixed with the animals' diet at a concentration of 1 g pellet per 10 kg live weight. Faecal egg counts (FEC), packed cell volume (PCV), total serum protein and the animals' body weight were determined fortnightly from 7 October 2005 to 24 March 2006. Comparison of such parameters between groups showed no significant differences (P > 0.05), except on 10 February 2006, when the control group presented a higher mean FEC than the treated group (P <  0.05). Feeding sheep with pellets containing D. flagrans had no benefit to the prophylaxis of nematode infections under the experimental conditions used in the present study.

Type
Research Papers
Information
Journal of Helminthology , Volume 81 , Issue 4 , December 2007 , pp. 387 - 392
Copyright
Copyright © Cambridge University Press 2007

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