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Testing a Sustainable Strategy Against Poultry Helminth Stages Developing in the Soil.

Jorge Alexander León1,2, Gustavo Pérez-Anzúrez1,3, Inês Abreu Ramos1

  • 1Control of Parasites Research Group (COPAR, GI-2120), Department of Animal Pathology, Faculty of Veterinary, University of Santiago de Compostela, 27002 Lugo, Spain.

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Summary

Biological control using the fungus Mucor circinelloides effectively reduced helminth egg viability in free-ranging hens. This strategy offers a promising method for preventing parasitic infections in pastured poultry.

Keywords:
birdsfree-rangeparasitesparasitophagous fungipreventionspraying

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Area of Science:

  • Veterinary Parasitology
  • Applied Mycology
  • Poultry Science

Background:

  • Free-ranging hens are susceptible to soil-transmitted helminths like Ascaridia galli and Capillaria spp.
  • Parasitic infections pose a significant health risk to pastured poultry flocks.
  • Effective control strategies are needed to mitigate helminthiasis in free-range poultry systems.

Purpose of the Study:

  • To evaluate the efficacy of the fungus Mucor circinelloides as a biological control agent against helminth eggs in poultry.
  • To determine the impact of different application frequencies of Mucor circinelloides on helminth egg viability.

Main Methods:

  • Fecal samples containing Ascaridia galli and Capillaria spp. eggs were collected and mixed.
  • Experimental plots were treated with Mucor circinelloides spores at varying frequencies (once, twice, four times) or water (control).
  • Egg viability was assessed after a four-week experimental period.

Main Results:

  • Mucor circinelloides application significantly reduced the viability of Ascaridia galli and Capillaria spp. eggs compared to the control.
  • Single application (G1) reduced egg viability by 64% (Ascaridia) and 79% (Capillaria).
  • Repeated applications (G2, G3) showed slightly higher reductions, ranging from 71-79% for Ascaridia and 80-82% for Capillaria.

Conclusions:

  • Spraying with Mucor circinelloides spores is a highly effective biological control method for helminth infections in free-range poultry.
  • This fungal treatment presents a viable strategy for preventing parasitic infections in pastured hens.
  • Biological control using Mucor circinelloides offers a sustainable approach to poultry parasite management.