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National Institute of Animal Health quarterly最新文献

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Seroepizootiological survey on bluetongue virus infection in cattle in Japan. 日本牛蓝舌病病毒感染血清流行病学调查。
National Institute of Animal Health quarterly Pub Date : 1982-01-01
Y Miura, Y Inaba, T Tsuda, S Tokuhisa, K Sato, H Akashi
{"title":"Seroepizootiological survey on bluetongue virus infection in cattle in Japan.","authors":"Y Miura,&nbsp;Y Inaba,&nbsp;T Tsuda,&nbsp;S Tokuhisa,&nbsp;K Sato,&nbsp;H Akashi","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Bovine sera collected in various parts of Japan were subjected to seroepizootiological tests with bluetongue virus type 1 (BTV1), type 12 (BTV12), and type 20 (BTV20). All these viruses have been widely disseminated among cattle in the southern part of Japan in 1974. Relatively high incidences of neutralizing (NT) antibody against the three viruses were shown among cattle in the Kyushu district, including Okinawa Prefecture, or the southern part of Japan, but extremely low or incidences in Hokkaido, or the northern part of Japan. The incidence of reactors was higher in old animals. Cattle in Okinawa Prefecture showed a high rate of seroconversion for all the viruses during the summer of 1979. None of the animals seroconverted, however, manifested any sign of disease. Seroepizootiological investigation made it clear that BTV1, BTV12 and BTV20 had existed in Japan and that the epizootic of bluetongue virus infection started during a period from summer through early autumn.</p>","PeriodicalId":76197,"journal":{"name":"National Institute of Animal Health quarterly","volume":"22 4","pages":"154-8"},"PeriodicalIF":0.0,"publicationDate":"1982-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"17373748","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Intestinal changes in gnotobiotic piglets experimentally inoculated with porcine rotavirus. 猪轮状病毒实验接种仔猪肠道的变化。
National Institute of Animal Health quarterly Pub Date : 1982-01-01
M Narita, A Fukusho, S Konno, Y Shimizu
{"title":"Intestinal changes in gnotobiotic piglets experimentally inoculated with porcine rotavirus.","authors":"M Narita,&nbsp;A Fukusho,&nbsp;S Konno,&nbsp;Y Shimizu","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Intestinal lesions were studied in 8 gnotobiotic piglets orally given porcine rotavirus by light microscopy, scanning electron microscopy and transmission electron microscopy. Five of these piglets were killed 6, 12, 18, 24 and 48 hours after inoculation, respectively. Of the other 3 piglets, one died 60 hours and two became moribund 96 and 114 hours after inoculation, respectively. All the infected piglets showed diarrhea between 18 and 24 hours after inoculation. Examination of the small intestine by light microscopy and scanning electron microscopy indicated the extensive degeneration and desquamation of epithelial cells with villi stripped and shortened. Villous degeneration, especially that in the jejunum and ileum, was very severe 24 hours after inoculation. Within 48 hours after inoculation, all the stripped villi were replaced by multiplication of regenerated cuboidal epithelial cells. Transmission electron microscopy revealed many virus particles in the epithelial cells of the small intestine 18 hours after inoculation.</p>","PeriodicalId":76197,"journal":{"name":"National Institute of Animal Health quarterly","volume":"22 2","pages":"54-60"},"PeriodicalIF":0.0,"publicationDate":"1982-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"18149015","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Indirect immunofluorescent antibody test in chicken leucocytozoonosis. 鸡白细胞人畜共患病间接免疫荧光抗体检测。
National Institute of Animal Health quarterly Pub Date : 1982-01-01
T Isobe, K Akiba
{"title":"Indirect immunofluorescent antibody test in chicken leucocytozoonosis.","authors":"T Isobe,&nbsp;K Akiba","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>The indirect immunofluorescent antibody technique was applied to detection of antigens of different developmental stages of Leucocytozoon caulleryi and antibodies in the sera of chickens infected with L. caulleryi by using second generation merozoite and gametocyte antigens. Zygotes, ookinetes and sporozoites in midges, and second generation merozoites and gametocytes in chickens indicated specific fluorescence. Indirect immunofluorescent antibody titers were higher than agar gel precipitation antibody titers. So the detection of the antibody by the indirect immunofluorescent antibody technique was possible in the sera in which the antibody could not be detected by the agal gel precipitation test. Therefore, the indirect immunofluorescent antibody technique was applicable to chicken leucocytozoonosis as a highly sensitive serological diagnostic method.</p>","PeriodicalId":76197,"journal":{"name":"National Institute of Animal Health quarterly","volume":"22 4","pages":"163-9"},"PeriodicalIF":0.0,"publicationDate":"1982-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"17290202","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Isolation of Haemophilus equigenitalis from an aborted equine fetus. 从马流产胎儿中分离马氏血友病。
National Institute of Animal Health quarterly Pub Date : 1981-01-01
H Nakashiro, M Naruse, C Sugimoto, Y Isayama, C Kuniyasu
{"title":"Isolation of Haemophilus equigenitalis from an aborted equine fetus.","authors":"H Nakashiro,&nbsp;M Naruse,&nbsp;C Sugimoto,&nbsp;Y Isayama,&nbsp;C Kuniyasu","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":76197,"journal":{"name":"National Institute of Animal Health quarterly","volume":"21 4","pages":"184-5"},"PeriodicalIF":0.0,"publicationDate":"1981-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"18351708","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Antigenic type of fowl plague virus isolated in Japan in 1925. 1925年在日本分离的禽鼠疫抗原型病毒。
National Institute of Animal Health quarterly Pub Date : 1981-01-01
T Sugimura, T Ogawa, Y Tanaka, T Kumagai
{"title":"Antigenic type of fowl plague virus isolated in Japan in 1925.","authors":"T Sugimura,&nbsp;T Ogawa,&nbsp;Y Tanaka,&nbsp;T Kumagai","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":76197,"journal":{"name":"National Institute of Animal Health quarterly","volume":"21 2","pages":"104-5"},"PeriodicalIF":0.0,"publicationDate":"1981-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"18355366","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Genetic relationships between sublines of inbred strains of mice as assessed by mandible analysis. 下颌骨分析评估的近交系小鼠亚系之间的遗传关系。
National Institute of Animal Health quarterly Pub Date : 1981-01-01
N Goto, K Miura, K Imamura, K Komeda
{"title":"Genetic relationships between sublines of inbred strains of mice as assessed by mandible analysis.","authors":"N Goto,&nbsp;K Miura,&nbsp;K Imamura,&nbsp;K Komeda","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Genetic relationships between sublines of inbred strains of mice were investigated by using mandible measurements. (1) Canonical discriminant analysis (discriminant analysis with reduction of dimensionality) was applied to the investigation of genetic relationships between sublines on two kinds of dimensionality. As a result, it was made clear that all the sublines of the same strains mapped closer to each other than they were to other strains on the plane of z1--z2, except the sublines of strain AA. (2) According to the result of discriminant analysis, misclassification among the sublines of the other strains was only 0 head/302 head, or 0%, for the male mice and 6 head/302 head, or 1.99%, for the female mice. Misidentification between the sublines of the same strain was also of low rate; that is, 28/302, or 9.27%, or the males and 9/302, or 2.98%, for the females. These results suggested that the mice of the sublines of the same strain might be genetically different from one another. (3) The cause for the occurrence of such subline divergence as this seemed to be mainly due to the spontaneous mutation of each colony after the separation of mice. It appeared that the subline divergence of strain AA might be due to the genetic heterozygosity of an original stock before the separation of mice.</p>","PeriodicalId":76197,"journal":{"name":"National Institute of Animal Health quarterly","volume":"21 1","pages":"32-41"},"PeriodicalIF":0.0,"publicationDate":"1981-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"18257073","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Etiologic studies on enterotoxigenic Escherichia coli among isolates from domestic animals in Japan. 日本家畜产肠毒素大肠杆菌的病原学研究。
National Institute of Animal Health quarterly Pub Date : 1981-01-01
H Ueda, N Terakado, Y Isayama, K Sakurai, M Nakazawa
{"title":"Etiologic studies on enterotoxigenic Escherichia coli among isolates from domestic animals in Japan.","authors":"H Ueda,&nbsp;N Terakado,&nbsp;Y Isayama,&nbsp;K Sakurai,&nbsp;M Nakazawa","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":76197,"journal":{"name":"National Institute of Animal Health quarterly","volume":"21 2","pages":"108-9"},"PeriodicalIF":0.0,"publicationDate":"1981-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"18090838","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Production of heat-stable enterotoxic component by Escherichia coli strains enteropathogenic for swine. 猪致病性大肠杆菌菌株生产热稳定型肠毒性成分的研究。
National Institute of Animal Health quarterly Pub Date : 1981-01-01
M Kashiwazaki, Y Akaike, T Miyachi, T Ogawa, M Sugawara, Y Isayama
{"title":"Production of heat-stable enterotoxic component by Escherichia coli strains enteropathogenic for swine.","authors":"M Kashiwazaki,&nbsp;Y Akaike,&nbsp;T Miyachi,&nbsp;T Ogawa,&nbsp;M Sugawara,&nbsp;Y Isayama","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Forty-nine strains of Escherichia coli isolated from piglets with or without neonatal diarrhea were all negative for both classical heat-labile and heat-stable enterotoxins when examined by the 18-hour rabbit ileal loop test with culture supernatants, the mouse Y1 adrenal cell test, and the infant mouse test. Of them, seven strains from diarrhea were positive only when tested in porcine ileal loops challenged with living bacterial cell suspensions or culture supernatants. The enterotoxic component produced by them was resistant to heating at 80 degrees C for 20 minutes. It presented a rapid onset of action with a long duration, although the amount of accumulated fluid in the porcine ileal loops was small. These porcine strains of E. coli which has been positive only for the porcine ileal loop test were designated \"ST pig loop\" or \"STpl\" strains.</p>","PeriodicalId":76197,"journal":{"name":"National Institute of Animal Health quarterly","volume":"21 1","pages":"21-5"},"PeriodicalIF":0.0,"publicationDate":"1981-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"18066164","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Sporocysts of Sarcocystis cruzi in mesenteric lymph nodes of dogs. 犬肠系膜淋巴结克氏肌囊虫的孢子囊。
National Institute of Animal Health quarterly Pub Date : 1981-01-01
K Shimura, S Ito, K Tsunoda
{"title":"Sporocysts of Sarcocystis cruzi in mesenteric lymph nodes of dogs.","authors":"K Shimura,&nbsp;S Ito,&nbsp;K Tsunoda","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":76197,"journal":{"name":"National Institute of Animal Health quarterly","volume":"21 4","pages":"186-7"},"PeriodicalIF":0.0,"publicationDate":"1981-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"17857299","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Formation of gizzard erosion-inducing substance in heated casein-histidine mixture. 在加热的酪蛋白-组氨酸混合物中形成诱发胗侵蚀的物质。
National Institute of Animal Health quarterly Pub Date : 1981-01-01
S Miyazaki, Y Umemura
{"title":"Formation of gizzard erosion-inducing substance in heated casein-histidine mixture.","authors":"S Miyazaki, Y Umemura","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Formation of a toxic substance inducing gizzard erosion (GE) was examined by using mainly a casein-histidine mixture as a simple model of fish meal. When a casein-histidine mixture was heated at 135 degrees C for three or five hours or at 160 degrees C for one hour, it induced severe GE. Changes in pH of histidine solution seemed to have little effect on the production of the toxic substance. Addition of a heated mixture of 30 mg of histidine and 150 g of casein (per kg of diet) failed to induce GE. A mixture of 750 mg of histidine and 150 g of casein was enough to produce a maximal toxicity. A heated mixture of histidine and isolated soybean protein, ovalbumin or gluten induced severe GE. A heated mixture of gelatin and histidine had a somewhat milder toxicity. On the other hand, zein and yeast treated in the same way showed only a slight toxicity. Two kinds of pre-treatment of casein before the addition of histidine were proved to be ineffective to inhibit the formation of the toxic substance. The toxicity of heated casein-histamine was rather lower than that of heated casein-histidine. Studies were also made on releasing of the toxic substance from heated casein-histidine into the soluble fraction by acidic hydrolysis and precipitation of this substance at acidic pH.</p>","PeriodicalId":76197,"journal":{"name":"National Institute of Animal Health quarterly","volume":"21 4","pages":"175-81"},"PeriodicalIF":0.0,"publicationDate":"1981-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"18215974","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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