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Canadian journal of comparative medicine and veterinary science最新文献

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The dollar gap in veterinary practice. 兽医实践中的美元缺口。
Canadian journal of comparative medicine and veterinary science Pub Date : 1967-08-01
{"title":"The dollar gap in veterinary practice.","authors":"","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":72497,"journal":{"name":"Canadian journal of comparative medicine and veterinary science","volume":" ","pages":"191-2"},"PeriodicalIF":0.0,"publicationDate":"1967-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1494714/pdf/vetsci00009-0007.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"26846068","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Larval distribution and histopathology of experimental Strongyloides ransomi infection in young swine. 猪体内实验性圆形线虫感染的幼虫分布及组织病理学。
Canadian journal of comparative medicine and veterinary science Pub Date : 1967-08-01
W M Stone, C F Simpson
{"title":"Larval distribution and histopathology of experimental Strongyloides ransomi infection in young swine.","authors":"W M Stone,&nbsp;C F Simpson","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Necropsy at various intervals of three week old pigs following experimental infection with larvae of Strongyloides ransomi showed distribution of the larvae through the body during the first 24 hours. Quiescent larvae at the 24 hour necropsy, as indicated by higher recovery before and after this period may be an indication of physiological changes preceding a moult. Whether or not a moult occurs in the lung prior to migration of the larvae to the intestine has not been determined. At the 72 hour necropsy, larvae were largely confined to the lung and juvenile worms were beginning to appear in the small intestine. Migration to the small intestine was completed by the 96 hour necropsy. Lesions were observed in the skin and lungs up to the 96 hour necropsy, and lymphocytic accumulations were observed in the skin and lungs to this point and lymphocytic accumulations were observed in the liver to the 72 hour necropsy. At 28 days post-application lung lesions were still evident and the duodenum and jejunum were heavily parasitized. Egg passage began on the sixth day post-application and peaked on the 12th day.</p>","PeriodicalId":72497,"journal":{"name":"Canadian journal of comparative medicine and veterinary science","volume":"31 8","pages":"197-202"},"PeriodicalIF":0.0,"publicationDate":"1967-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1494716/pdf/vetsci00009-0013.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"15333704","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Exotic diseases and canadian research. 外来疾病和加拿大的研究。
Canadian journal of comparative medicine and veterinary science Pub Date : 1967-07-01
{"title":"Exotic diseases and canadian research.","authors":"","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":72497,"journal":{"name":"Canadian journal of comparative medicine and veterinary science","volume":" ","pages":"165"},"PeriodicalIF":0.0,"publicationDate":"1967-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1494708/pdf/vetsci00008-0005.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"26846067","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Studies on bluetongue. IV. Studies of three strains in primary bovine foetal kidney cell cultures. 蓝舌病的研究。三株菌株在原代牛胎肾细胞培养中的研究。
Canadian journal of comparative medicine and veterinary science Pub Date : 1967-07-01
A Girard, G M Ruckerbauer, D P Gray, G L Bannister, P Boulanger
{"title":"Studies on bluetongue. IV. Studies of three strains in primary bovine foetal kidney cell cultures.","authors":"A Girard,&nbsp;G M Ruckerbauer,&nbsp;D P Gray,&nbsp;G L Bannister,&nbsp;P Boulanger","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Three different strains of bluetongue virus were adapted to grow in primary bovine foetal kidney cell cultures. The cytopathic effects observed from the three strains were similar, and were characterized by shrinkage of cells and increased granularity. The specificity of the changes was confirmed by the fluorescent antibody technique. No significant immunological cross-reaction was detected by serum-virus neutralization tests from the strains studied.</p>","PeriodicalId":72497,"journal":{"name":"Canadian journal of comparative medicine and veterinary science","volume":"31 7","pages":"171-4"},"PeriodicalIF":0.0,"publicationDate":"1967-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1494711/pdf/vetsci00008-0011.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"15335343","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Studies on bluetongue. V. Detection of the virus in infected materials by immunofluorescence. 蓝舌病的研究。五、免疫荧光法检测感染材料中的病毒。
Canadian journal of comparative medicine and veterinary science Pub Date : 1967-07-01
G M Ruckerbauer, D P Gray, A Girard, G L Bannister, P Boulanger
{"title":"Studies on bluetongue. V. Detection of the virus in infected materials by immunofluorescence.","authors":"G M Ruckerbauer,&nbsp;D P Gray,&nbsp;A Girard,&nbsp;G L Bannister,&nbsp;P Boulanger","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>The fluorescent-antibody technique was employed for the detection of bluetongue virus in bovine foetal kidney cell cultures inoculated with tissues and blood from experimentally infected animals. In the first series, a total number of 79 inoculated suckling-mouse brains were examined, 36 as frozen sections alone and 43 as impression slides in conjunction with tissue culture inoculation of the same material. With the combined tissue culture immunofluorescent methods, 36 suspicious were detected by impression smears and 37 positives by the tissue culture out of 43 brains examined. Twenty-two were suspicious out of the 36 examined as frozen sections. Results obtained with the second series, using sheep tissues, showed that the combined tissue culture-fluorescent antibody method was satisfactory for demonstrating the virus in blood of infected animals 1 to 9 days postinfection, and in some organs after death. No false positive reactions were obtained.</p>","PeriodicalId":72497,"journal":{"name":"Canadian journal of comparative medicine and veterinary science","volume":"31 7","pages":"175-81"},"PeriodicalIF":0.0,"publicationDate":"1967-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1494704/pdf/vetsci00008-0015.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"15335344","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Studies on bluetongue. 3. Comparison of two complement-fixation methods. 蓝舌病的研究。3.两种补体固定方法的比较。
Canadian journal of comparative medicine and veterinary science Pub Date : 1967-07-01
P Boulanger, G M Ruckerbauer, G L Bannister, D P Gray, A Girard
{"title":"Studies on bluetongue. 3. Comparison of two complement-fixation methods.","authors":"P Boulanger,&nbsp;G M Ruckerbauer,&nbsp;G L Bannister,&nbsp;D P Gray,&nbsp;A Girard","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>The complement-fixation test used at Onderstepoort was compared with the method used at A.D.R.I. on infected calf and sheep sera. In the first method, the tests are incubated at 37 degrees C for 90 minutes and the test sera are inactivated at 53 degrees C; whereas in the A.D.R.I. method, the test sera are inactivated at 60 degrees C for 30 minutes, incubation is at 9 degrees C for 18 hours, and guinea-pig complement is supplemented with 5 per cent fresh, non-inactivated, normal calf serum. Serial serum samples from one of six experimentally infected calves were negative in the Onderstepoort test, three calves gave only trace reactions and two showed maximum titres of 1:10 whereas all six had maximum serum titres of 1:10 to 1:80 in the A.D.R.I. test. A good correlation was obtained, however, between the results of the two methods with the sera of experimentally inoculated sheep although titres 3 to 8 times higher were obtained with the A.D.R.I.'s test. Post inoculation bleedings from each sheep reacted in both tests.</p>","PeriodicalId":72497,"journal":{"name":"Canadian journal of comparative medicine and veterinary science","volume":"31 7","pages":"166-70"},"PeriodicalIF":0.0,"publicationDate":"1967-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1494703/pdf/vetsci00008-0006.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"15335342","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Studies on bluetongue. VI. Animal transmission studies. 蓝舌病的研究。六、动物传播研究。
Canadian journal of comparative medicine and veterinary science Pub Date : 1967-07-01
D P Gray, N G Willis, A Girard, G M Ruckerbauer, P Boulanger, G L Bannister
{"title":"Studies on bluetongue. VI. Animal transmission studies.","authors":"D P Gray,&nbsp;N G Willis,&nbsp;A Girard,&nbsp;G M Ruckerbauer,&nbsp;P Boulanger,&nbsp;G L Bannister","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>The Cyprus strain of bluetongue virus was successfully transmitted through six passages and the Station strain through one passage in calves. Although the animals developed no visible evidence of infection, viremia as shown by both passage and fluorescent antibody examination of infected foetal bovine kidney culture, and by serological conversion was nevertheless demonstrated. No enhancement of virulence for calves or sheep was shown following bovine passage. A ewe inoculated in late pregnancy with blood drawn from a calf 59 days after its infection, gave birth to a lamb from whose blood the virus was isolated. Significant complement-fixation titres persisted for at least 200 days.</p>","PeriodicalId":72497,"journal":{"name":"Canadian journal of comparative medicine and veterinary science","volume":"31 7","pages":"182-8"},"PeriodicalIF":0.0,"publicationDate":"1967-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1494706/pdf/vetsci00008-0022.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"15335345","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Methods of preparing supplementing fractions from fresh unheated bovine sera for use in modified direct complement-fixation tests. 从新鲜未加热的牛血清中制备用于改良直接补体固定试验的补充组分的方法。
Canadian journal of comparative medicine and veterinary science Pub Date : 1967-06-01
C E Rice
{"title":"Methods of preparing supplementing fractions from fresh unheated bovine sera for use in modified direct complement-fixation tests.","authors":"C E Rice","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>TWO METHODS OF PREPARING PARTIALLY PURIFIED, RELATIVELY STABLE SUPPLEMENTING FACTOR FROM FRESH BOVINE SERUM ARE DESCRIBED: gel filtration through Sephadex G-25, and anion exchange chromatography on a diethylaminoethyl (DEAE) cellulose column. In both procedures, an active, reconstituted precipitate prepared by dialysis of fresh unheated normal serum in the cold for 18 hours against phosphate buffer pH 6.2, 0.02 M, serves as the starting material. The Sephadex G-25 column is equilibrated with acetate buffer pH 5.4, 0.2 M. The most actively-supplementing material appears in the eluates in which the pH has risen to 7.5 or higher. For the DEAE cellulose chromatography a gradient system is used: initial phosphate buffer 0.03 M, pH 8.0, limiting buffer Na H(2)PO(4), 0.3 M. The greater part of the supplementing activity is eluated between pH 5.6 and 6.0, although some of the earlier fractions are also reactive. Pooled active eluates stored in the frozen state for nine months or longer maintained their supplementing titre in modified complement-fixation tests of two bacterial antigen-bovine antibody systems.</p>","PeriodicalId":72497,"journal":{"name":"Canadian journal of comparative medicine and veterinary science","volume":"31 6","pages":"142-9"},"PeriodicalIF":0.0,"publicationDate":"1967-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1494701/pdf/vetsci00007-0006.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"15335338","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Antibiotic and sulfonamide disc sensitivity tests of avian strains of Escherichia coli. 禽型大肠杆菌抗生素和磺胺片敏感性试验。
Canadian journal of comparative medicine and veterinary science Pub Date : 1967-06-01
R V Hemsley, D A Barnum, D G Ingram
{"title":"Antibiotic and sulfonamide disc sensitivity tests of avian strains of Escherichia coli.","authors":"R V Hemsley,&nbsp;D A Barnum,&nbsp;D G Ingram","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":72497,"journal":{"name":"Canadian journal of comparative medicine and veterinary science","volume":"31 6","pages":"156-9"},"PeriodicalIF":0.0,"publicationDate":"1967-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1494692/pdf/vetsci00007-0024.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"15335340","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Toxicity of different diets contaminated with various fungi to rice moth larvae (Corcyra cephalonica st). 不同真菌污染日粮对稻蛾幼虫的毒性研究。
Canadian journal of comparative medicine and veterinary science Pub Date : 1967-06-01
U C Hegde, T Chandra, E R Shanmugasundaram
{"title":"Toxicity of different diets contaminated with various fungi to rice moth larvae (Corcyra cephalonica st).","authors":"U C Hegde,&nbsp;T Chandra,&nbsp;E R Shanmugasundaram","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Growth studies of rice moth larvae (Corcyra cephalonica st) have been carried out in groundnut meal and wheat bran contaminated with A. flavus, A. oryzae, P. purpurogenus and P. rubrum. It was observed that the diets contaminated with A. flavus only are toxic to these larvae. Wheat bran contaminated with A. flavus is more toxic than contaminated groundnut meal. The higher toxicity of wheat bran contaminated diet has been discussed. Aflatoxins produced in different substrata are shown to differ when analysed chromatographically. Growth studies of rice moth larvae have also been carried out with aflatoxin and the susceptibility of these larvae has been established.</p>","PeriodicalId":72497,"journal":{"name":"Canadian journal of comparative medicine and veterinary science","volume":"31 6","pages":"160-3"},"PeriodicalIF":0.0,"publicationDate":"1967-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1494699/pdf/vetsci00007-0028.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"15335341","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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