نتایج جستجو برای: enzootic bovine leukosis

تعداد نتایج: 75382  

Journal: :Veterinary Quarterly 1981

2009

H 0 fir e k B. , Mar taG ran' t 0 v , : Demonstration of Antibody to Bovine Leukosis Virus by the ELISA Test. Acta vet. Bma, 57, 1988: 133-146. The ELISA test and the iDlDunodiffusion test were compared for their suitability to detect antibody to bovine leukosis virus (BVL) in milk of dairy cows. Sensitivity of the immunodiffusion test in the determination of BLV antibodies in milk proved to be...

Journal: :Animal : an international journal of animal bioscience 2015
C McConnel J Lombard B Wagner C Kopral F Garry

Summary studies of dairy cow removal indicate increasing levels of mortality over the past several decades. This poses a serious problem for the US dairy industry. The objective of this project was to evaluate associations between facilities, herd management practices, disease occurrence and death rates on US dairy operations through an analysis of the National Animal Health Monitoring System's...

2014
Qi Wang Xiaofei Li Xiaolin Ji Jingfei Wang Nan Shen Yulong Gao Xiaole Qi Yongqiang Wang Honglei Gao Shide Zhang Xiaomei Wang

Avian leukosis virus subgroup J (ALV-J) has induced serious clinical outbreaks and has become a serious infectious disease of chickens in China. We describe here the creation of a recombinant ALV-J tagged with the enhanced green fluorescent protein (named rHPRS-103EGFP). We successfully utilize the rHPRS-103EGFP to visualize viral infection and for development of a simplified serum-neutralizati...

Journal: :Genetics and molecular research : GMR 2013
X S Wang Y Zhang Y H He P P Ma L J Fan Y C Wang Y I Zhang D X Sun S L Zhang C D Wang J Z Song Y Yu

Bovine mastitis is the most common and costly disease of dairy cattle. Cluster of differentiation 4 (CD4) is closely related to the immune response in mastitis. We quantified promoter CpG methylation levels of the CD4 gene in Chinese Holsteins with clinical mastitis (CM) and in healthy controls; these levels were quantitatively detected with bisulfite pyrosequencing assays and confirmed by clon...

Journal: :Vaccine 2015
R W Fulton J M d'Offay R Eberle R B Moeller H Van Campen D O'Toole C Chase M M Miller R Sprowls D V Nydam

Bovine herpesvirus-1 (BoHV-1) causes significant disease in cattle. Control programs in North America incorporate vaccination with modified live viral (MLV) or killed (KV) vaccine. BoHV-1 strains are isolated from diseased animals or fetuses after vaccination. There are markers for differentiating MLV from field strains using whole-genome sequencing and analysis identifying single nucleotide po...

Journal: :Journal of virology 1996
P Kerkhofs E Adam L Droogmans D Portetelle M Mammerickx A Burny R Kettmann L Willems

Bovine leukemia virus (BLV) is the etiologic agent of enzootic bovine leukosis. The virus adopts a strategy based on the lack of viral expression in vivo; only very rare BLV-infected B lymphocytes express viral information. When the cells are isolated from animals in persistent lymphocytosis and cultivated ex vivo, a tremendous increase in viral expression occurs. To gain insight into this mech...

Journal: :Cancer research 1985
Y Aida M Onuma T Mikami H Izawa

Tumor-associated antigens (TAAs) expressed on tumor cells from cattle with enzootic bovine leukosis were divided into three groups by using 13 monoclonal antibodies: common TAA; partially common TAA; and individually distinct TAA. TAA was extracted from tumor cells and purified by ion exchange chromatography on diethylaminoethyl-cellulose and isoelectric focusing. The common TAA, which was dete...

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