Serodetection of astroviruses in runted commercial broilers and turkeys in southwest Nigeria
Date
2021-01-08
Journal Title
Journal ISSN
Volume Title
Publisher
Springer
Abstract
Infections with divergent strains of astroviruses appear to be endemic in commercial poultry. In order to investigate enteric viruses associated with hatchery condemnations in Nigerian poultry, an indirect immunofluorescence test with CAstV-612- (Group A), CAstV-11672- (Group B) and ANV-1-infected cells was used to screen sera obtained from commercial broilers (nā=ā164) and turkeys (nā=ā97) in farms and hatcheries in southwest Nigeria. Of the 261 sera tested, 16 (6.1%) were positive for CAstV antibodies after immunofluorescent staining with CAstV-11672-infected cells. Thirteen (81.3%) of the positive sera were from broilers with three (18.7%) being from turkeys. Conversely, all tested sera were negative for CAstV-612 and ANV-1 antibodies. Since CAstV-11672, a group B CAstV is known to be antigenically and genetically distinct from CAstV-612 that belongs to group A, these findings reveal that the circulating serotype of CAstV in commercial broilers and turkeys in southwest Nigeria belongs to group B of CAstV. Education of veterinary personnel and poultry farmers about this emerging virus and its impact on commercial poultry in Nigeria, as well as continuous monitoring of chicken and turkey flocks for infections caused by it are therefore imperative in order to facilitate the implementation of effective prevention and control measures.
Description
Publication history: Accepted - 29 December 2020; Published online - 8 January 2021
item.page.type
Article
item.page.format
Keywords
Astroviruses, Broilers, Turkeys, Immunofluorescence, Runting
Citation
Adebiyi, A.I., Oluwayelu, D.O. and Smyth, V.J. (2021) āSerodetection of astroviruses in runted commercial broilers and turkeys in southwest Nigeriaā, Veterinary Research Communications. Springer Science and Business Media LLC. Available at: https://doi.org/10.1007/s11259-020-09786-9.