Seroprevalence and risk factors associated to bhv-1 and dvbv in dairy herds in Pasto, Colombia
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Date
2011
Journal Title
Journal ISSN
Volume Title
Publisher
Corporación Universitaria Lasallista
Abstract
Introduction. The bovine herpes virus type I
(BHV-1) causes the disease called Infectious Bovine
Rhinotracheitis (IBR), infects cattle and presents clinical manifestations such as pustular vulvo-vaginitis,
abortion, rhinotracheitis and meningoencephalitis.
Objective. This research work aims to determine
the prevalence of serum antibodies to bovine herpesvirus-1 (BHV-1) and bovine diarrhea (BVD) virus
and risk factors associated to these infections in
dairy herds in the municipality of Pasto, Colombia.
Materials and methods. Farms above 2527 meters over the sea level were selected. A total of 238
serum samples were collected and analyzed using
the ELISA test to determine the seropositivity against
BHV-1 and BVD virus. A questionnaire, which included variables related to cattle, plus a health and a
management measure were filled out in each herd.
A multivariate analysis binary logistic regression was
used with a confidence interval of 95% (p <0.05)
using the program SPSS19 ®. Results. The estimated prevalence of exposure to BHV-1 in the municipality of Pasto was 17.65% and 32.77% for bovine
viral diarrhea at the herd level. The binary logistic
regression showed that the use of a bull instead of
artificial insemination (OR = 30.56, CI 6.87, 135.98,
P <0.0001) is a risk factor with BHV-1, and abortion
(OR = 22.70, CI 4.21, 122.42, P <0.0001) and acquisition of new animals (OR = 34.90, CI 6.30, 193.43.
P <0.0001) are risk factors with BVD. Conclusions.
The prevalence of infectious rhinotracheitis and bovine viral diarrhea in dairy herds in Pasto does not
indicate the existence of the disease in animals serologically positive, but suggests that at some point
in their lives they were exposed to the virus. From
the risk factors identified in this work, recommendations can be established for an effective control of
reproductive diseases in the region.
Description
Keywords
Aborto en los animales, Rinotraqueitis Bovina Infecciosa (IBR), Herpes virus bovino tipo 1 (BHV-1), Vulvovaginitis Purulenta, Rinotraqueitis, Corporación Universitaria Lasallista, Meningoencefalitis, Ganado lechero - Enfermedades, Ganado vacuno - Enfermedades, Virus de Rinotraqueítis infecciosa bovina