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Acta Parasitologica


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Volume 62, Issue 1

Issues

Dictyocaulosis in dairy cows in Brazil: an epidemiological, clinical-pathological and therapeutic approach

Luan C. Henker
  • Laboratory of Veterinary Pathology, Instituto Federal Catarinense (IFC), Rod. SC 283, km 08, CP 58, Concórdia, SC, 89703-720, Brazil
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/ Claiton I. Schwertz
  • Laboratory of Veterinary Pathology, Instituto Federal Catarinense (IFC), Rod. SC 283, km 08, CP 58, Concórdia, SC, 89703-720, Brazil
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  • De Gruyter OnlineGoogle Scholar
/ Neuber J. Lucca
  • Laboratory of Veterinary Pathology, Instituto Federal Catarinense (IFC), Rod. SC 283, km 08, CP 58, Concórdia, SC, 89703-720, Brazil
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  • De Gruyter OnlineGoogle Scholar
/ Manoela M. Piva
  • Laboratory of Veterinary Pathology, Instituto Federal Catarinense (IFC), Rod. SC 283, km 08, CP 58, Concórdia, SC, 89703-720, Brazil
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/ Patricia Giacomin
  • Laboratory of Veterinary Pathology, Instituto Federal Catarinense (IFC), Rod. SC 283, km 08, CP 58, Concórdia, SC, 89703-720, Brazil
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/ Anderson Gris
  • Laboratory of Veterinary Pathology, Instituto Federal Catarinense (IFC), Rod. SC 283, km 08, CP 58, Concórdia, SC, 89703-720, Brazil
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/ Leandro A. Rhoden
  • Laboratory of Veterinary Pathology, Instituto Federal Catarinense (IFC), Rod. SC 283, km 08, CP 58, Concórdia, SC, 89703-720, Brazil
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/ Luke J. Norbury
  • Witold Stefański Institute of Parasitology, Polish Academy of Sciences (PAN), Twarda 51/55, 00-818, Warsaw, Poland
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/ Aleksandro S. da Silva
  • Department of Animal Science, Universidade do Estado de Santa Catarina (UDESC), Sete de Setembro 77D, Chapecó, SC, 89806-152 Brazil
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/ Rafael A. da Rosa
  • Cooperativa de Produção e Consumo Concórdia (COPÉRDIA), R. Dr. Maruri, 1586, Concórdia, SC, 89700-000 Brazil
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/ Ricardo E. Mendes
  • Corresponding author
  • Laboratory of Veterinary Pathology, Instituto Federal Catarinense (IFC), Rod. SC 283, km 08, CP 58, Concórdia, SC, 89703-720, Brazil
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Published Online: 2016-12-28 | DOI: https://doi.org/10.1515/ap-2017-0015

Abstract

An outbreak of severe parasitic pneumonia caused by Dictyocaulus viviparus was diagnosed in adult dairy cows in the municipality of Arabutã, Southern Brazil. The total morbidity in the herd was 71.9%, and the morbidity amongst adult lactating cattle was 100%. The main clinical signs observed were dyspnea, tachypnea, nasal discharge, decreased milk production, and cough. A necropsy was conducted on one animal in order to establish the diagnosis. The herd had been treated previously with levamisole; however, clinical signs persisted and became worse. After treatment with eprinomectin the severity of clinical signs decreased, and the respiratory condition subsequently disappeared. It is believed that the high morbidity presented in this outbreak is related to epidemiological factors, such as increased rainfall in 2014 and 2015, associated with low immunity of the herd. This is the first report of dictyocaulosis in adult dairy cattle in Brazil. Furthermore, it describes an outbreak presenting very high morbidity.

Keywords: Dictyocaulus viviparus; lungworm; dairy cattle; high morbidity

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About the article

Received: 2016-01-30

Revised: 2016-09-08

Accepted: 2016-10-12

Published Online: 2016-12-28

Published in Print: 2017-03-01


Conflict of interestThere are no known conflicts of interest associated with this publication and there has been no financial support for this work that could have influenced its outcome.


Citation Information: Acta Parasitologica, Volume 62, Issue 1, Pages 129–132, ISSN (Online) 1896-1851, ISSN (Print) 1230-2821, DOI: https://doi.org/10.1515/ap-2017-0015.

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