Campylobacter Fetus Venerealis
Mostrando 13-24 de 35 artigos, teses e dissertações.
-
13. Susceptibilidade antimicrobiana de Campylobacter fetus subsp. venerealis isolado de bovinos
A campilobacteriose venérea bovina, ocasionada principalmente pelo Campylobacter fetus subsp. fetus e Campylobacter subsp. venerealis, é transmitida através do coito ou por inseminação com sêmen contaminado. O propósito deste estudo foi determinar a susceptibilidade in vitro de isolados de C. fetus subesp. venerealis a agentes antimicrobianos comument
Pesquisa Veterinária Brasileira. Publicado em: 2005-03
-
14. Campilobacteriose genital bovina na sub-região da Nhecolândia do Pantanal Sul-Mato-Grossence e proposição de novas técnicas de diagnóstico
A estimativa da prevalencia da Campilobacteriose Genital Bovina no rebanho do Pantanal foi realizada em 19 conglomerados pela iminofluorescência direta em lavados prepuciais obtendo-se 52,3% (170) de prevalência em touros (CI 95%; 42,6% - 62.0%) e 89.5% (17) de propriedades positivas. Foi padronizado um ensaio imunoenzimático para detecção de imunoglobu
Publicado em: 2001
-
15. Avaliação da imunofluorescência direta no diagnóstico da campilobacteriose genital bovina
O teste de imunofluorescência direta para diagnóstico da Campilobacteriose Genital Bovina foi avaliado quanto ao limite de detecção, efeito dos observadores e sensibilidade e especificidade. Além disso, a especificidade do conjugado fluorescente foi testada contra Campylobacter SP. Arcobacter SP. Helicohacter SP. E. coli e bactérias da flora normal do
Publicado em: 2001
-
16. Ocorrência de Campylobacter em genitais de bovinos vasectomizados mantidos em central de transferência de embriões
Em central de transferência de embriões, após os procedimentos de reconhecimento do cio em 37 vacas receptoras, através de quatro rufiões vasectomizados, observou-se que 83% delas apresentavam retorno ao cio e algum corrimento serofibrinoso. Nos exames bacteriológicos realizados nos lavados prepuciais dos rufiões foi isolado o Campylobacter fetus subs
Arquivo Brasileiro de Medicina Veterinária e Zootecnia. Publicado em: 2000-04
-
17. Hydrogenase activity in catalase-positive strains of Campylobacter spp.
A rapid hydrogenase assay has been developed which may be useful in separating the species Campylobacter jejuni and C. coli from the subspecies C. fetus subsp. fetus and C. fetus subsp. venerealis. This assay employs the impermeant redox dye benzyl viologen, and positive determinations can be made within 20 min. All strains of C. jejuni and C. coli were foun
-
18. Identification of Campylobacter fetus by PCR-DNA probe method.
A PCR method for rapid identification of Campylobacter fetus subsp. fetus was evaluated. A fragment of the gene coding for 16S rRNA was amplified from crude cell lysates of 18 C. fetus strains and 30 strains representing other Campylobacter species and subspecies. The amplicons were probed by dot blot hybridization with a digoxigenin-labeled C. fetus-specifi
-
19. Protein shift and antigenic variation in the S-layer of Campylobacter fetus subsp. venerealis during bovine infection accompanied by genomic rearrangement of sapA homologs.
Campylobacter fetus subsp. venerealis isolated from a case of human vaginosis was inoculated into the uterus of a C. fetus-negative heifer. Isolates obtained weekly from the vaginal mucus exhibited variations in high-molecular-mass-protein profiles from that of the original inoculum, which had a dominant 110-kDa S-layer protein. Immunoblots of the weekly iso
-
20. Comparative Study Using Amplified Fragment Length Polymorphism Fingerprinting, PCR Genotyping, and Phenotyping To Differentiate Campylobacter fetus Strains Isolated from Animals
A collection of Campylobacter fetus strains, including both C. fetus subsp. fetus and C. fetus subsp. venerealis, were phenotypically identified to the subspecies level and genotypically typed by PCR and amplified fragment length polymorphism (AFLP) analysis. Phenotypic subspecies determination methods were unreliable. Genotyping of the strains by PCR and AF
American Society for Microbiology.
-
21. Differentiation of Campylobacter species by protein banding patterns in polyacrylamide slab gels.
Soluble protein extracts of 37 catalase-positive strains of Campylobacter species were examined by polyacrylamide slab gel electrophoresis (PAGE). Electrophoretic banding patterns showed good correlation with biochemical tests and with available DNA homology data in distinguishing species of Campylobacter but did not differentiate subspecies or biotypes. PAG
-
22. Susceptibility of Campylobacter species to nalidixic acid, enoxacin, and other DNA gyrase inhibitors.
Nalidixic acid-resistant mutants of Campylobacter jejuni and C. coli as well as "C. laridis" strains showed cross-resistance to another DNA gyrase subunit A inhibitor, enoxacin (MIC, 32 micrograms/ml), whereas C. fetus subsp. fetus, C. fetus subsp. venerealis, and "C. hyointestinalis" strains were all susceptible to enoxacin (MIC, less than or equal to 2 mic
-
23. Campylobacter fetus in artificial insemination unit and slaughterhouse bulls in Ontario.
Preputial fluid samples were collected from 90 bulls in two Ontario artificial insemination units using a penial glove swab technique previously developed by one of us for use in donor bulls. No Campylobacter fetus organisms were identified from the prepuce or from samples of semen collected at the same time from these bulls. The distal genitalia of 200 bull
-
24. Lipopolysaccharide structures of Campylobacter fetus are related to heat-stable serogroups.
To determine whether lipopolysaccharide (LPS) structures of Campylobacter fetus are related to the three known heat-stable serogroups, proteinase K-treated whole cell lysates obtained from strains of each serogroup were electrophoresed in polyacrylamide gels. All strains had smooth-type LPS with multiple high-molecular-weight repeating units. The profiles of