The objectives of the present study were to describe pathomorphological and immunohistochemical features of congenital cerebellar hypoplasia associated with natural BVD-MD virus infection in a Holstein-Friesian calf. The characteristic macroscopical lesion was cerebellar hypoplasia, almost completely absent, with hydrocephaly. Cerebellar changes were cortical destruction, destructive changes of...

bovine viral diarrhoea virus (bvdv) is an important pathogen of dairy cattle. in this study, bulk milk samples representing a total of 4105 milking cows, from 18 dairy cattle herds in the suburb of mashhad- iran, were tested for presence of bvdv by the use of a nested reverse transcription polymerase chain reaction (nested rt- pcr) assay. non of the cows in the herds had been vaccinated against...

Bovine viral diarrhoea (BVD) leads to substantial economic losses in beef and dairy herds worldwide. Two case-control studies were carried out using production data from 1996 to 2012 to analyse the impact of BVD virus (BVDV) on fertility in dairy herds in the province of Styria during an eradication programme. In study 1, herds in which at least one persistently BVDV-infected (PI) animal was de...

Infections with Bovine Viral Diarrhoea Virus (BVD) are endemic in cattle populations worldwide and result in major economic losses; hence, many countries have begun BVD eradication programs. The authors estimated the losses caused by BVD, and the estimated annual losses in 2012 amounted to 4.5 million EUR in Hungary. In a dairy cattle farm with 1000 cows the acute clinical BVD could cause more ...

Bovine viral diarrhea disease is one of the viral diseases in cattle that were reported 10-90 percent in many countries. The causative RNA virus is a member of the family Flaviviridae and the genus pestivirus which is antigenically closely related with the virus of BD in sheep. Cattle are the most sensitive species to virus and are considered the principal reservoir of BVD viruses. A large prop...

Outbreaks of diarrhoea associated with mucosal erosions of the mouth, tongue and digestive tract, clinically diagnosed as bovine virus diarrhoea-mucosal disease (BVD-MD), have been reported in Argentina and Brazil since the 1960's. However, primary isolation of the virus of BVD-MD is fairly recent, occurring in 1974 for Brazil, 1984 for Argentina, 1985 for Chile and 1981 for Colombia. In Argent...

Bovine viral diarrhoea virus (BVDV) is an important pathogen of dairy cattle. In this study, bulk milk samples representing a total of 4105 milking cows, from 18 dairy cattle herds in the suburb of Mashhad- Iran, were tested for presence of BVDV by the use of a nested reverse transcription polymerase chain reaction (Nested RT- PCR) assay. Non of the cows in the herds had been vaccinated against...

Nine healthy pregnant does free from BVD neutralizing antibodies were I/V and I/P inoculated with two cytopathic strains of BVD virus (NADL-camel) at about 65 days of gestation. In NADL strain of BVDV group, abortion occurred in 3 out of 5 virus inoculated does on 7, 17 and 21 days post inoculation (PI) . The mean serum progesterone values of pregnant does significantly decreased on days 7(P<0....

Bovine respiratory disease (BRD) is considered to be the most costly infectious disease in the cattle industry. Bovine viral diarrhea virus (BVDV) is one of the pathogens involved with the BRD complex of disease. BVDV infection also negatively impacts cow reproduction and calf performance. Loci associated with persistently infected animals (BVD-PI) and linked with BRD have previously been ident...

A single experiment with a completely randomized design was conducted to evaluate the effects of long- or short-term exposure to a calf identified as persistently infected with bovine viral diarrhea virus (PI-BVD) on feedlot performance and carcass characteristics of freshly weaned, transport-stressed beef heifers. Two hundred eighty-eight heifers that had been vaccinated for BVD before weaning...