Pathology and immunohistochemical evaluation of lungs of cattle slaughtered at metropolitan abattoirs in Nigeria and Ghana.

Autor: Ola OO; Department of Veterinary Pathology, University of Ibadan, Ibadan, Nigeria., Adeniran GA; Department of Veterinary Pathology, University of Ibadan, Ibadan, Nigeria., Opoku-Agyemang T; Anatomy and Physiology, School of Veterinary Medicine, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana., Bediako E; Department of Pathobiology, School of Veterinary Medicine, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana., Ishola O; Department of Veterinary Pathology, University of Ibadan, Ibadan, Nigeria., Jarikre TA; Department of Veterinary Pathology, University of Ibadan, Ibadan, Nigeria., Emikpe BO; Department of Veterinary Pathology, University of Ibadan, Ibadan, Nigeria.
Jazyk: angličtina
Zdroj: Journal of immunoassay & immunochemistry [J Immunoassay Immunochem] 2020 May 03; Vol. 41 (3), pp. 297-310. Date of Electronic Publication: 2020 Feb 23.
DOI: 10.1080/15321819.2020.1730889
Abstrakt: There was a dearth of information on pathology and causal agents of bovine pneumonia in West Africa. This cross-sectional study conducted at four major metropolitan abattoirs in Nigeria and Ghana was to evaluate the pathology and to immunohistochemically demonstrates viral and bacterial pathogens of bovine pneumonia in West Africa. Out of the 20,605 cattle lungs examined at post-mortem using standard inspection procedures, 136 samples grossly showed pneumonic lesions and 99 randomly selected lung samples were fixed in 10% neutral buffered formalin for histopathological and immunohistochemical examination. The overall prevalence of pneumonia was 0.66%, with 0.72% prevalence in Ibadan, Nigeria and 9.68% prevalence in Ghana. Age and breed were observed to be among the predisposing factors to pneumonia in cattle. Histologically, bronchopneumonia (0.65%), broncho-interstitial pneumonia (0.13%), and interstitial pneumonia (0.08%) were the prominent type of pneumonias observed. Immunohistochemically, 0.8% was positive for bovine PI-3, 0.9% for bovine RSV, 1.0% for Mannheimia haemolytica (MH), and 0.6% for Pasteurella multocida (PM). There were a few interactions of pathogens: PI3 and MH (0.01%), RSV and MH (0.01%), PM and MH (0.02%). This was the first study that immunohistochemically demonstrated bacterial and viral antigens in naturally occurring pneumonia in cattle in Nigeria and Ghana.
Databáze: MEDLINE
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