Prevalence of BVD in bovine aborted fetuses of dairy cattle herds by RT� PCR in Tehran province

Subject Areas : clinical veterinary science

آریا  Badii, ¹ (Department of Clinical Sciences, Faculty of Veterinary Medicine , karaj Branch, Islamic Azad University, karaj, Iran)
فرهاد  Mousakhani, ² (Department of Pathobiology, Faculty of Veterinary Medicine , Karaj Branch, Islamic Azad University, karaj, Iran)
علی  Zolfaghari, ³ (Graduated from Faculty of Veterinary Medicine , Karaj Branch, Islamic Azad University, Karaj, Iran)
محسن  Zafari, ⁴ (Graduated from Faculty of Veterinary Medicine , Karaj Branch, Islamic Azad University, Karaj, Iran)
, M  Malekan ⁵ (Graduated from Faculty of Veterinary Medicine , Karaj Branch, Islamic Azad University, Karaj, Iran)

Received: 2016-11-02 Accepted : 2016-11-02 Published : 2011-03-21

Keywords: Infertility, cattle, abortion, polymerase chain reaction, BVD,

Abstract :

Bovine viral diarrhea disease virus (BVDV) from flaviviridae family and pestiviruses can cause reproductive complications including abortion, stillbirth, infertility, congenital defects and many other economic losses. Becauseof diffcult clinical diagnosis, many laboratory methods including reverse transcriptase polymerase chain reaction(RT-PCR) can be used to exact diagnosis.In this study, 251 samples of aborted fetuses were referred from industrial dairy farms of Tehran province andevaluated in a reference laboratory during one year. samples tested were tissues, including liver, kidney, spleenand heart were the fetus.Based on the results, the estimated prevalence of abortion due to BVD in Tehran province was 25.2% and basedon the season, respectively, spring 33.3%, summer 18%, atom 34.2%, winter 23.7%.In order to reduce the prevalence of BVD abortions the following points should be noted: identifcation and elimination PIs, vaccination, application of bio-security principles and etc