Seroprevalence and risk factors of several bovine viral diseases in dairy farms of San Pedro de los Milagros, Antioquia, Colombia

In diseases like BVD, vertical transmission during the first trimester of pregnancy may cause abortion or the birth of an immunotolerant PI calf. [...]a positive antibody test for BVD virus typically means a recovered case that is no longer infectious, whereas a negative result could be either an im...

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Bibliographic Details
Published in:CES medicina veterinaria y zootecnia 2016-01, Vol.11 (1), p.15-25
Main Authors: Ramírez Vásquez, Nicolás Fernando, Villar Argaiz, David, Fernández Silva, Jorge Arturo, Londoño Pino, Julián, Chaparro Gutiérrez, Jenny Jovanna, Olivera Ángel, Martha Eufemia
Format: Article
Language:English
Subjects:
Age at first calving
Animals
calving interval
Cattle
Dairy farms
Diarrhea
Epidemiology
Factores de riesgo
Farms
Fatores de risco
gado holandês
genetic evaluation
Health risks
herpes virus bovino
Herpes viruses
herpes vírus bovino
heterosis
Holstein
Infections
leucose bovina
leucosis bovina
Risk factors
Serology
seroprevalencia
soroprevalência
vaca
VETERINARY SCIENCES
viral bovina
Viral infections
virus de la diarrea viral bovina
vírus da diarreia
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Summary:In diseases like BVD, vertical transmission during the first trimester of pregnancy may cause abortion or the birth of an immunotolerant PI calf. [...]a positive antibody test for BVD virus typically means a recovered case that is no longer infectious, whereas a negative result could be either an immunotolerant PI carrier or a non-exposed individual 16. All farms were up to date on the annual official vaccinations against brucellosis and foot and mouth disease, and 5 out of 29 farms used vaccines against viruses of the bovine respiratory complex (BVD, IBR, PI3, and BRSV). [...]only data from the 24 non-vaccinated cattle farms were used for determining prevalence for BVD and IBR. [...]even if vaccines can be a great advantage when seroprevalence is high, as in the initial stages of controlling IBR, if eradication is the ultimate goal there will be a point in which apparently healthy but seropositive animals will need to be removed. In Colombia, and particularly with small scale dairy farmers in our area, cattle are not quarantined, are traded with no health certificates, and rarely are sick animals separated from healthy mates. [...]a major education campaign would be paramount to lead any further actions to control these viral diseases.
ISSN:1900-9607
1900-9607
DOI:10.21615/cesmvz.11.1.2