Original Scientific Article
Etiological and pathomorphological investigations in calves with coronaviral pneumoenteritis
Ismet Kalkanov * ,
Ivan Dinev ,
Ivan Zarkov

Mac Vet Rev 2019; 42 (1): 43 - 49

10.2478/macvetrev-2018-0028

Received: 13 February 2018

Received in revised form: 27 May 2018

Accepted: 16 August 2018

Available Online First: 27 November 2018

Published on: 15 March 2019

Correspondence: Ismet Kalkanov, ismet_88@abv.bg
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Abstract

The aim of the present study was to report the primary gross and microscopic lesions, as well as etiological agents of field cases of pneumoenteritis in neonate and juvenile calves. The research was done with 370 calves from 6 cattle farms in 4 regions of the country. The age of the animals was from 24 hours to 25 days. Clinical and epidemiological studies were carried out with newborn and growing calves in all farms. For rapid antigenic and viral detection of pathogens, Rainbow calf scour 5 BIO K 306 Detection of Rota, Corona, E.coli F5, Cryptoand Clostridium perf. in bovine stool (BIOX Diagnostics, Belgium), and Monoclonal Antibody anti-bovine Coronavirus FITC conjugated) 0,5 ml (20X), BIO 023, (BIOX Diagnostics, Belgium) were used. Eighteen carcasses of calves with signs of pneumoenteritis syndrome (PES) were submitted to gross anatomy and histopathological studies. Bovine coronavirus (BCoV) was the main etiological agent involved in calf pneumoenteritis. The macro- and micro lesions in the lung and the ileum of calves affected by PES are relevant with regard to the differential diagnosis of the syndrome and its differentiation from respiratory (IBR, BVD, BRSV, M. haemolytica etc.) and intestinal (Cryptosporidium parvum, bovine rotaviruses, bovine coronaviruses and Escherichia coli K99 (F5) diseases in this category of animals.

Keywords: calves, pathology, pneumoenteritis, bovine coronavirus

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Copyright

© 2018 Kalkanov I. This is an open-access article published under the terms of the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

Acknowledgment

The authors are grateful to their colleagues serving the private cattle farms from different regions of the country for cooperation and collaboration.

Conflict of Interest Statement

The authors declared that they have no potential conflict of interest with respect to the authorship and/or publication of this article.

Citation Information

Macedonian Veterinary Review. Volume 42, Issue 1, Pages 43-49, p-ISSN 1409-7621, e-ISSN 1857-7415, DOI: 10.2478/macvetrev-2018-0028, 2018

The all content of the Macedonian Veterinary Review, except where otherwise noted, is licensed under a Creative Commons Attribution License.