National Institute of Animal Health quarterly最新文献_第5页

Genetic relationships among 5 inbred strains established from common ancestor, dd mouse, as assessed by mandible analysis. 5个自共同祖先dd小鼠建立的近交系间的遗传关系，通过下颌骨分析进行了评估。

National Institute of Animal Health quarterly Pub Date : 1982-01-01

N Goto, K Miura, K Imamura, K Komeda

引用次数: 0

Statistical analysis of results of a survey on antibody against swine influenza virus in pigs by single radial hemolysis and hemagglutination-inhibition tests. 猪单放射状溶血和血凝抑制试验抗猪流感病毒抗体调查结果的统计分析。

National Institute of Animal Health quarterly Pub Date : 1982-01-01

T Ogawa, T Sugimura, Y Tanaka

引用次数: 0

Hematopathological changes in dead and moribund chicks induced by chicken anemia agent. 鸡贫血剂对死、垂死雏鸡血液病理的影响。

National Institute of Animal Health quarterly Pub Date : 1982-01-01

T Taniguchi, N Yuasa, M Maeda, T Horiuchi

{"title":"Hematopathological changes in dead and moribund chicks induced by chicken anemia agent.","authors":"T Taniguchi, N Yuasa, M Maeda, T Horiuchi","doi":"","DOIUrl":"","url":null,"abstract":"Fifty day-old chicks were inoculated wit the Gifu-1 strain of chicken anemia agents. They began to show anemia and a drop in body weight 10 days postinoculation. Thirty-five of them died over a period of 12 to 23 days, mostly between 14 and 18 days postinoculation. Hematocrit value and red and white blood cell counts were markedly reduced in moribund birds. Polychromatic erythrocytes and granulocytes dropped in incidence in the peripheral blood accompanied with a fall in hematocrit value, and gained again with recovery from anemia. Macroscopically, dead and moribund birds revealed yellow bone marrow, marked atrophy of the thymus and bursa of Fabricius, discoloration and swelling of the liver, spleen and kidneys. In some cases, there were partially well-defined necrotic foci in the liver, round heart, fresh hemorrhages in the proventricular mucosa, erosion on the gizzard mucosa, and subcutaneous edema. Microscopically, marked hypoplasia or aplasia of hematopoietic cells in the bone marrow and severe depletion of lymphocytes in lymphoid organs, such as the thymus, bursa of Fabricius, spleen, and cecal tonsils, were commonly seen in affected birds. The changes described above suggested that the anemia induced by chicken anemia agent might closely be related to the bone marrow function.","PeriodicalId":76197,"journal":{"name":"National Institute of Animal Health quarterly","volume":"22 2","pages":"61-9"},"PeriodicalIF":0.0,"publicationDate":"1982-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"18149016","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

Outbreaks of type C botulism in waterfowl in Japan. 日本水禽爆发C型肉毒杆菌中毒。

National Institute of Animal Health quarterly Pub Date : 1982-01-01

T Ono, R Azuma, T Kato, S Takeuchi, T Suto

引用次数: 0

Indirect immunoperoxidase technique for the assay of antibodies against Mycoplasma gallisepticum and M. synoviae in chicken serum. 间接免疫过氧化物酶技术测定鸡血清中鸡败支原体和滑膜支原体抗体。

National Institute of Animal Health quarterly Pub Date : 1982-01-01

Y Imada, I Nonomura, K Furuta

引用次数: 0

Detection of schizonts in a chicken recovered from experimental infection with Leucocytozoon caulleryi. 鸡实验性感染卡勒氏白细胞原虫后分离体的检测。

National Institute of Animal Health quarterly Pub Date : 1982-01-01

K Fujisaki, S Kitaoka, T Kamio, H Takamatsu

引用次数: 0

Stability of avian leukosis virus type-specific antigen in the cell after fixation in periodate-lysine-paraformaldehyde. 禽白血病病毒型特异性抗原在高碘酸-赖氨酸-多聚甲醛中固定后在细胞中的稳定性。

National Institute of Animal Health quarterly Pub Date : 1982-01-01

Y Mizuno, K Arai

引用次数: 0

Detection of salmonella infection in herds by examination of slurry. 用浆液检测畜群沙门氏菌感染。

National Institute of Animal Health quarterly Pub Date : 1982-01-01

Y Sunaga, S Sato

{"title":"Detection of salmonella infection in herds by examination of slurry.","authors":"Y Sunaga, S Sato","doi":"","DOIUrl":"","url":null,"abstract":"An examination was carried out on the slurry system of the Animal Quarantine Service for 9 months to find the degree of contamination with Salmonella. Ready-made tampons were placed in the slurry for 5 to 7 days and submitted for detection of Salmonella. Tampons and samples of settled sludge were collected about two times a month at fixed sites along the slurry system. Salmonella organisms were recovered from 80 (62.5%) of 128 tampons, and also from 40 (34.8%) of 115 samples of settled sludge. The serovars isolated were S. cerro, S. newport, S. muenster, S. stanley, S. heidelberg, S. infantis, S. drypool, S. typhimurium, S. panama and S. arizonae (61:k:1, 5, 7). Seventy-one (98.6%) of 72 samples of slurry from which Salmonella organisms had been isolated by the tampon method contained less than 100 organisms as most probable number (MPN) per 100 ml. Thirty-four (91.9%) of 37 samples of settled sludge contained these organisms at the rate of less than 100/100 ml. Further examination was carried out on the slurry of pits and gutters beside animal houses and kennel during a period of two months when a large number of animals were put into quarantine. As a result, the states of Salmonella contamination could be clarified in each animal house. The tampon method is simple, inexpensive and reliable for the isolation of Salmonella organisms from the slurry which contains less than 1 organism 100 ml, as compared with such method of examination for fecal samples from many individual animals and a large quantity of slurry.","PeriodicalId":76197,"journal":{"name":"National Institute of Animal Health quarterly","volume":"22 2","pages":"39-44"},"PeriodicalIF":0.0,"publicationDate":"1982-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"17807898","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

Effect of temperature on the survival of Haemophilus parasuis in physiological saline. 温度对副猪嗜血杆菌在生理盐水中存活的影响。

National Institute of Animal Health quarterly Pub Date : 1982-01-01

T Morozumi, T Hiramune

引用次数: 0

Syncytia infectivity of assay of bovine leukemia virus. 牛白血病病毒合胞体感染性测定。

National Institute of Animal Health quarterly Pub Date : 1982-01-01

S Itohara, I Takatori

{"title":"Syncytia infectivity of assay of bovine leukemia virus.","authors":"S Itohara, I Takatori","doi":"","DOIUrl":"","url":null,"abstract":"Bovine embryonic spleen cell cultures were examined to find several factors influencing the specificity, sensitivity and reproducibility of the syncytia infectivity assay of bovine leukemia virus (BLV). The highest sensitivity of the assay were observed when cell sheets of 30 to 50% confluence were inoculated with a stock of BLV, and when cells containing 4 or more nuclei were counted as syncytial cells. Treatment of the cell sheets with a diethylamino-ethyl-dextran solution (25 micrograms/ml) prior to BLV inoculation was found to be essential for the optimal induction of syncytia. Low-passage cultures were found to be more susceptible to the induction of syncytia by BLV than high-passage cultures. Cell-free BLV preparations decreased in syncytia-inducing ability to some extent by the first cycle of freezing (at -70 degrees C) and thawing. No further decrease, however, was caused by repeated cycles of freezing and thawing or by prolonged incuvation at -80 degrees C. The syncytia-inducing activity of BLV was inhibited by all the BLV-precipitating antibody-positive sera originated from both cases of the adult form of bovine leukosis and cases of persistent lymphocytosis. It was not inhibited by the sera of 16 of 17 cattle apparently healthy and negative for BLV-precipitating antibody. These results indicate that the syncytia infectivity assay and syncytia inhibition test are specific for BLV.","PeriodicalId":76197,"journal":{"name":"National Institute of Animal Health quarterly","volume":"22 4","pages":"147-53"},"PeriodicalIF":0.0,"publicationDate":"1982-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"17373215","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