Prevalence of bovine viral diarrhea virus in dairy cattle herds in eastern China.
Bovine viral diarrhea
Epidemiological investigation
Genetic typing
Persistent infection
Phylogenetic analysis
Virus isolation
Journal
Tropical animal health and production
ISSN: 1573-7438
Titre abrégé: Trop Anim Health Prod
Pays: United States
ID NLM: 1277355
Informations de publication
Date de publication:
May 2019
May 2019
Historique:
received:
05
07
2018
accepted:
11
11
2018
pubmed:
21
11
2018
medline:
18
6
2019
entrez:
21
11
2018
Statut:
ppublish
Résumé
Bovine viral diarrhea virus (BVDV) is a worldwide spreading pestivirus affecting cattle and other ruminants; however, there have been few reports on epidemiologic investigation of BVDV in eastern China. In this study, bulk tank milk from 36 herds of dairy cattle in eastern China was submitted to serological investigations, 77.8% of herds was BVDV antibody positive. Individual animal status in two herds was further investigated collecting blood samples, the positive ratio was 49.74% and 24.64%, and the average positive ratio of calves, heifers, and lactating cows was 15.94%, 40.16%, and 41.7%, respectively. Moreover, clinical survey was carried out among 8170 dairy cattle from 36 herds, for diarrhea syndrome, respiratory problems and reproductive failure, and pathogens of all clinical cattle were further investigated. The results showed that BVDV was one of the main pathogen, which infected animals combining with various other viruses. Then, nine BVDV strains were isolated; phylogenetic analysis showed that BVDV subtypes currently circulating in eastern China were BVDV 1a and BVDV 1c. In addition, out of 377 cows tested, the 1.86% detected positive to the BVDV antigen. This study provided the foundation of further study on vaccination and control strategies of BVDV in eastern China.
Identifiants
pubmed: 30456692
doi: 10.1007/s11250-018-1751-z
pii: 10.1007/s11250-018-1751-z
pmc: PMC7089171
doi:
Substances chimiques
Antibodies, Viral
0
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
791-798Subventions
Organisme : Shandong province Key R & D program Fund
ID : 2018GNC113011
Organisme : National Natural Science Fund of China
ID : 31672556
Organisme : National Natural Science Fund of China
ID : 31502064
Organisme : Agro-Industry R and D Special Fund of China
ID : 2018YFD0501605-06
Organisme : National Natural Science Foundation of China
ID : 31872490
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