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51.
Two experiments were done on 57 steers. These cattle were allotted to 8 groups (4 groups/experiment) and vaccinated with 1 to 3 X 10(9) colony-forming units of Brucella abortus strain 19. Cattle in 3 of the 4 groups/experiment were given 6 mg of levamisole/kg, subcutaneously, either at the time of vaccination (day 0), 7 days later, or at both times. Serum antibody titers to B abortus were measured sequentially for 28 days in experiment 1 and for 56 days in experiment 2, using the card test, Rivanol test, complement-fixation test, fluorometric immunoassay, and an enzyme-linked immunosorbent assay. In general, the highest mean antibody titers, as determined by all serologic tests, occurred in steers treated with levamisole at 7 days after vaccination or in those treated at the time of vaccination and 7 days later. By the card test on day 56, there was a significantly (P less than 0.05) greater number of seropositive cattle among those given levamisole 7 days after seropositive cattle among those given strain 19 alone. Simultaneous administration of strain 19 and levamisole did not alter antibody responses to B abortus. 相似文献
52.
Cutaneous cryptococcosis in three cats 总被引:1,自引:0,他引:1
L Medleau E J Hall M H Goldschmidt N Irby 《Journal of the American Veterinary Medical Association》1985,187(2):169-170
Cutaneous cryptococcosis was diagnosed in 3 cats. No other organ involvement was found. One cat has remained healthy after surgical excision of the cryptococcal skin lesion. One cat was euthanatized after diagnosis. The third cat was treated successfully with a 5-month course of ketoconazole. 相似文献
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Plasma enteroglucagon and neurotensin levels in gnotobiotic calves infected with enteropathogenic and non-enteropathogenic viruses 总被引:1,自引:0,他引:1
G A Hall K R Parsons J C Bridger M A Ghatei Y C Ying S R Bloom 《Research in veterinary science》1985,38(1):99-103
Five gnotobiotic calves were each infected with five viruses. Each calf was inoculated with coronavirus at seven days old, followed by astrovirus, Newbury agent, parainfluenzavirus type 3 and rotavirus at intervals of two weeks. Three of the viruses were enteropathogenic (bovine coronavirus, bovine calici-like virus and bovine rotavirus) and two were not (bovine astrovirus and parainfluenzavirus type 3). Plasma levels of the peptide hormones enteroglucagon and neurotensin and faecal output were measured daily and xylose absorption was studied before and after each infection. A close correlation was found between a rise in plasma enteroglucagon and neurotensin and infection with enteropathogenic viruses. The three enteropathogenic viruses caused increased daily faecal output, and elevated plasma levels of enteroglucagon and neurotensin, while the non-enteropathogens did not. The calici-like virus and rotavirus but not the coronavirus caused xylose malabsorption. 相似文献
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E. J. Hall 《The Journal of small animal practice》1990,31(11):574-579
Two dogs developed a generalised bleeding disorder after ingestion of brodifacoum, a compound belonging to a new generation of more potent and longer-acting anticoagulant rodenti-cides. Haemorrhage recurred after treatment with conventional dosages of vitamin K1 Successful therapy required dosages of vitamin K1 of 5 mg/kg for a period of up to eight weeks. 相似文献
57.
Detection of Eperythrozoon suis DNA from swine blood by whole organism DNA hybridizations 总被引:10,自引:0,他引:10
A procedure is described for isolating Eperythrozoon suis DNA of sufficient quantity and purity to serve as a probe in whole-organism DNA hybridizations for detecting parasitized swine. The E. suis organisms were isolated from the blood of infected swine; the DNA was recovered and digested with restriction endonucleases and resolved on agarose gels. In DNA hybridizations using recovered E. suis DNA, blood samples from parasitized swine could be differentiated from uninfected, control samples. A high salt lysate recovery technique was used in sampling swine whole blood for E. suis DNA and found to offer many advantages in the collection and recovery process. 相似文献
58.
An anonymous, self-administered questionnaire has been used in two independent surveys to try to determine the prevalence of scrapie in the national sheep flock. The disease was recorded in 35 counties in England and Wales. About a third (26.5 and 37.3 percent) of respondents owning 100 or more sheep indicated that they had seen sheep with scrapie in their flocks. The incidences of clinical cases recorded in affected flocks in the two surveys were 0.5 and 1.1 cases/100 ewes/year. At present there is no control over the disposal of these animals. If as has been suggested, an increase in the prevalence of scrapie was a contributory factor in the emergence of bovine spongiform encephalopathy, it would seem logical that measures should be introduced to monitor the prevalence and incidence of scrapie and to control the disposal of clinical cases. 相似文献
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