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OJVRTM
Online
Journal of Veterinary Research©
(Including
Medical and Laboratory Research)
Established 1994
ISSN 1328-925X
Volume 27 (4): 199-203,
2023.
Seroepidemiology of herpes and
parainfluenza viruses in Holstein cows.
Farzinpour M1,
Pourjafar M1*, Badiei
K1, Ghane M1 and K Zare2
1Department of Clinical Sciences, School of Veterinary Medicine,
Shiraz University, 2Department of Statistics, Science and Research
Branch, Islamic Azad University, Fars, Iran.
ABSTRACT
Farzinpour M, Pourjafar M, Badiei K, Ghane M, Zare K., Seroepidemiology of
herpes and parainfluenza viruses in Holstein cows, Onl
J Vet Res., 27 (4): 199-203,
2023. Authors report sero-epidemiology
of bovine herpesvirus-1 and parainfluenza virus-3 in 730 three month to
7 year old unvaccinated dairy Holstein cows from 22 industrial and
semi-industrial farms. For associated risk factors we recorded age, respiratory diseases, milk production, husbandry and herd size
analyzed by Chi-square and logistic regression test. We found 140 with herpes and
672 influenza viruses by ELISA yielding prevalence of 19% (95% CI: 16-22) and
91.3% (95% CI: 89-93%). Herpes antibodies were associated with all respective
factors, except age and milk production whereas influenza antibodies were with
all risk factors (P < 0.05). However, increased age and milk output was
associated with influenza viruses (P<0.05). Animals with less respiratory
disease had less antibodies to both viruses and as
expected more in larger herds.
Key words: Bovine herpesvirus-1; parainfluenza
virus-3; Indirect ELISA; Risk factors; Seroprevalence.