<abstract xmlns="http://www.w3.org/1999/xhtml">
<p>Lungworm infections are known to be frequent and responsible for substantial economic losses in ruminants. They are caused by <italic>Dictyocaulus filaria</italic> and various species belonging to the Protostrongylidae family of nematodes. This present study was conducted at the Tiaret municipal slaughterhouse and the parasitology laboratory of the veterinary institute for six months, from November 2016 to April 2017. The study aimed to evaluate the occurrence of lungworm infections and the determination of the circulating species affecting sheep in the region with a pathological study of infected pulmonary tissue sections. The overall incidence of the pathology in sheep was 26 % (240/921). The identified species were <italic>Muellerius capillaris </italic>43 %, <italic>Neostrongylus linearis </italic>8 %, <italic>Cystocaulus ocreatus </italic>4 %, <italic>Dictyocaulus filaria </italic>3 %, <italic>Protostrongylus rufescens </italic>1 %, and mixed infestations 42 %. The histological examination of corresponding lesions has revealed pneumonia-type, and bronchopneumonia, inflammatory lesions, with a predominance of mononuclear cells, necrosis of bronchial epithelium, and pulmonary parenchyma as well as hyperplasia of the bronchiolar epithelium. Prevention and control of these parasites is therefore essential for releasing the potential of sheep production.</p>
</abstract>

Lungworm infections are known to be frequent and responsible for substantial economic losses in ruminants. They are caused by Dictyocaulus filaria and various species belonging to the Protostrongylidae family of nematodes. This present study was conducted at the Tiaret municipal slaughterhouse and the parasitology laboratory of the veterinary institute for six months, from November 2016 to April 2017. The study aimed to evaluate the occurrence of lungworm infections and the determination of the circulating species affecting sheep in the region with a pathological study of infected pulmonary tissue sections. The overall incidence of the pathology in sheep was 26 % (240/921). The identified species were Muellerius capillaris 43 %, Neostrongylus linearis 8 %, Cystocaulus ocreatus 4 %, Dictyocaulus filaria 3 %, Protostrongylus rufescens 1 %, and mixed infestations 42 %. The histological examination of corresponding lesions has revealed pneumonia-type, and bronchopneumonia, inflammatory lesions, with a predominance of mononuclear cells, necrosis of bronchial epithelium, and pulmonary parenchyma as well as hyperplasia of the bronchiolar epithelium. Prevention and control of these parasites is therefore essential for releasing the potential of sheep production.

Ovine Lungworms Infection in Tiaret (Algeria): Prevalence, Species Involved, and Pathological Findings

Laboratory of research on local animal products

Folia Veterinaria

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Lungworm infections are known to be frequent and responsible for substantial economic losses in ruminants. They are caused by Dictyocaulus filaria and various...

Ovine Lungworms Infection in Tiaret (Algeria): Prevalence, Species Involved, and Pathological Findings

Publicado en línea: 22 mar 2024

Páginas: 85 - 92

Recibido: 08 ene 2024

Aceptado: 29 feb 2024

DOI: https://doi.org/10.2478/fv-2024-0010

Palabras clave
histological examination, lungworm, sheep

© 2024 Moussaoui Mabrouk et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Ovine Lungworms Infection in Tiaret (Algeria): Prevalence, Species Involved, and Pathological Findings

Publicado en línea: 22 mar 2024

Páginas: 85 - 92

Recibido: 08 ene 2024

Aceptado: 29 feb 2024

DOI: https://doi.org/10.2478/fv-2024-0010

Palabras clavehistological examination, lungworm, sheep

© 2024 Moussaoui Mabrouk et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Palabras clave
histological examination, lungworm, sheep