Made available in DSpace on 2022-04-29T08:44:24Z (GMT). No. of bitstreams: 0 Previous issue date: 2011-01-01; Serum samples from three dairy farms classified as high (1, 78.6%), medium (2, 40.0%) and low (3, 1.6%) prevalence for bovine herpesvirus type 1 (BoHV-1) from São Paulo State, were collected to analyze the prevalence to the bovine respiratory syncytial virus (BRSV) by virus neutralization test. The BRSV...
The Bovine viral diarrhea virus (BVDV) infections in swine are an important issue to the swine industry due to cross-reaction in serological exams, with the Classical swine fever virus (CSFV) resulting in false-positives. This paper focused on reporting and comparing antibody titers detected in swine serum samples using the virus neutralization assay (VN). To this, 3,084 swine serum samples of 115 swine herds o...
Made available in DSpace on 2018-11-12T17:27:24Z (GMT). No. of bitstreams: 0 Previous issue date: 2015-09-01. Added 1 bitstream(s) on 2021-07-14T17:51:35Z : No. of bitstreams: 1 S1809-68912015000300437.pdf: 670504 bytes, checksum: 1a73f086eeb4f9432d53c330d9ccd9f9 (MD5); <title>Resumo</title>A doença de Aujeszky (DA) é conhecida na suinocultura pelo seu grande impacto produtivo e econômico. Este trabalho teve co...
Made available in DSpace on 2018-11-12T17:27:27Z (GMT). No. of bitstreams: 0 Previous issue date: 2017. Added 1 bitstream(s) on 2018-11-12T17:35:27Z : No. of bitstreams: 1 S1809-68912017000100312.pdf: 1597446 bytes, checksum: 9ac19cce5f22d171b4647cba04518223 (MD5); Resumo A Febre Aftosa (FA), doença altamente contagiosa que afeta os animais biungulados, é reconhecida pelos prejuízos econômicos nas propriedades ...
Bovine respiratory syncytial virus (BRSV) causes important lower respiratory tract illness in calves. According to F and G proteins genetic sequences, three BRSV subgroups have been reported and characterized in several countries, showing differences in its distribution. In Brazil, the virus is widely disseminated throughout the herds and the few characterized isolates revealed the solely occurrence of the subg...
Isolates of bovine viral diarrhoea virus (BVDV) detected in serum samples of two persistently infected animals (PI) identified in a herd located in the southern state of Minas Gerais, Brazil, underwent genetic characterization trough partial nucleotide sequencing and analysis of the 5’ Untranslated Region (5’UTR) of the viral genome. The isolates were characterized as belonging to genotype BVDV-1, subgenotype B...
In Brazilian cattle-breeding, the vaccination against the foot-and-mouth disease virus is essential during the early stages of disease erradication programmes. In spite of the official control on the vaccine quality, thecnical variables, as manipulation, transportation and conservation by the consumer, dosage, place and manner of inoculation that interfere with the immune response, remain unmonitered and are th...
Samples of serum of 376 lactating cows were analyzed for research of antibodies against the virus of the bovine viral diarrhoea virus, through the test of indirect ELISA. The study was accomplished in 10 dairy herds located in the South region of the State of Minas Gerais and Northeast region of the State of São Paulo, between the months of march and june of 2000. In all the herds were found reactor animals and...
The correlation between the proportion of reactor lactating cows and the presence of antibodies to the bovine viral diarrhoea virus (BVD) in bulk tank milk was studied by using the ELISA test. Serum and individual milk samples from 376 unvaccinated lactating cows from 10 herds located in the South region of the State of Minas Gerais and the Northeast region of the State of São Paulo as well as one milk sample f...