Cambios de la capacidad pulmonar en corzos (Capreolus capreolus) del noroeste de España infectados por nematodos bronco pulmonares

  1. Dacal, Vicente
  2. Vázquez, Luis
  3. Pato, Francisco Javier
  4. Cienfuegos, S.
  5. Panadero Fontán, Rosario
  6. López Sández, Ceferino Manuel
  7. Díez Baños, Pablo
  8. Morrondo Pelayo, María Patrocinio
Journal:
Galemys: Boletín informativo de la Sociedad Española para la conservación y estudio de los mamíferos

ISSN: 1137-8700

Year of publication: 2010

Issue Title: V Congreso Mundial sobre Ungulados de Montaña

Volume: 22

Issue: 1

Pages: 233-242

Type: Article

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More publications in: Galemys: Boletín informativo de la Sociedad Española para la conservación y estudio de los mamíferos

Abstract

During two consecutive hunting seasons, May 2007 to October 2008, trachea and lungs of 367 roe deer shot in different areas of Galicia (NW Spain) were collected. Lung surface was carefully examined, and the localization and distribution of lesions possibly caused by Protostrongylidae nematoda (Varestrongylus capreoli) were recorded. Finally, areas with lesions were cut up into small pieces and weighed prior to using the Baermann-Wetzel method to recover first stage larvae (L1) and to assess the number of L1 per gram of lung (lpg). For each roe deer its thoracic perimeter was measured, serving as an indicator of their lung capacity. Taking into account the age, roe deer were divided in two groups: young (< 3 years-old) and adults (>=3 years-old). 39.6% of roe deer were positive for bronchopulmonary nematoda larvae, being the prevalence of infection of 33.7% for V. capreoli and 19.2% for Dictyocaulus capreolus. When bronchopulmonary infection and lung capacity were correlated, it was found mar the mean thoracic perimeter in infected animals was lower than in the uninfected ones. In D. capreolus infected roe deer, the thoracic perimeter was lower in both age groups, young (670 mm Vi 681mm) and adult (696 mm vs 719 mm) and the analysis of variance showed that these differences were statistically significant in adult roe deer (F= 5.218, p= 0.023). In animals infected with V. capreoli the thoracic perimeter was lower than in the uninfected ones in both age groups, young (670 mm vs 675) and adults (710 mm vs 717 mm), although these differences were not statistically significant in adult roe deer as above (F= 0.717, p= 00400). From the results of this study, we concluded that roe deer infected by bronchopulmonary nematoda have a smaller thoracic perimeter and this reduction is more intense in roe deer parasitized by D. capreolus.

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