National Institute of Animal Health quarterly最新文献_第2页

Contents of free histidine and histamine in fish meals and in the model compounds and their toxicities to induce gizzard erosion. 鱼粉和模型化合物中游离组氨酸和组胺的含量及其对砂囊侵蚀的毒性。

National Institute of Animal Health quarterly Pub Date : 1983-01-01

K Kuba, S Miyazaki, Y Umemura

引用次数: 0

Chronological observations on hemato-pathological changes in chicks inoculated with chicken anemia agent. 接种鸡贫血剂后雏鸡血液病理变化的时间顺序观察。

National Institute of Animal Health quarterly Pub Date : 1983-01-01

T Taniguchi, N Yuasa, M Maeda, T Horiuchi

{"title":"Chronological observations on hemato-pathological changes in chicks inoculated with chicken anemia agent.","authors":"T Taniguchi, N Yuasa, M Maeda, T Horiuchi","doi":"","DOIUrl":"","url":null,"abstract":"Chicks were inoculated with the Gifu-1 strain of the chicken anemia agent (CAA) on the day of hatching. They manifested distinct anemia accompanied with pancytopenia 8--20 days after inoculation. Discoloration of the bone marrow and atrophy of the thymus began to be seen 6 days after inoculation. Histologically, hematopoietic cells began to decrease and large blastic cells to appear in the bone marrow 4--6 days after inoculation. Hypoplasia and subsequently aplasia occurred to all over the bone marrow 8 days after inoculation. In the bone marrow erythrocytopoiesis was noticed first 16--18 days after inoculation, granulocytopoiesis later, and transient hyperplasia finally. At last, the bone marrow returned to a normal condition 32 days after inoculation or later. In the thymus the depletion of cortical lymphocytes became distinct 4--6 days after inoculation, and lobular atrophy 8 days after inoculation or later. The depletion of lymphocytes in the other lymphatic tissues and hemorrhage in the lamina propria of the proventriculus were observed only in the anemic phase. The results mentioned above indicated that the anemia induced by CAA was caused by the disorder of hematopoietic cell formation in the bone marrow. It was also noteworthy that cortical lymphocytes in the thymus began to decrease remarkably soon after inoculation.","PeriodicalId":76197,"journal":{"name":"National Institute of Animal Health quarterly","volume":"23 1","pages":"1-12"},"PeriodicalIF":0.0,"publicationDate":"1983-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"17735652","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

Effects of dietary antibiotics on intestinal microflora in broiler chickens. 饲粮中添加抗生素对肉鸡肠道菌群的影响。

National Institute of Animal Health quarterly Pub Date : 1983-01-01

T Ohya, S Sato

{"title":"Effects of dietary antibiotics on intestinal microflora in broiler chickens.","authors":"T Ohya, S Sato","doi":"","DOIUrl":"","url":null,"abstract":"Changes were examined in the intestinal microflora in broiler chickens fed a diet containing antibiotics to obtain fundamental information on the mechanisms of beneficial effect of the antibiotics upon livestock production. Three antibiotics (colistin, bacitracin, and enramycin) were employed as feed additives. Experiments were conducted with broiler chickens in two ways. In one way dietary antibiotics were fed continually at levels approved for use as feed additives for a long term. In the other they were fed the same antibiotics for a short term. Significant changes in microflora were observed mainly in such bacterial groups as aerobic bacteria and Lactobacillus. In the long term administration, three possible modes of variance in the bacterial flora were postulated: Changes directly related to the antibacterial spectrum of antibiotics. Antagonistic changes related to an ecological balance in the bacterial flora. Changes in quantitative balance of bacteria constituting each bacterial group. The change in the intestinal microflora during administration of the antibiotic diet was expressed as a complex form of these transition modes. In the short term administration, it was demonstrated that the effect of the antibiotic diet lingered even 7 days after administration. This suggests that antibiotics used as feed additives may possibly affect the stability of the intestinal microflora.","PeriodicalId":76197,"journal":{"name":"National Institute of Animal Health quarterly","volume":"23 2","pages":"49-60"},"PeriodicalIF":0.0,"publicationDate":"1983-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"17735657","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

Reverse plaque formation method for titration of non-cytopathogenic bovine viral diarrhea-mucosal disease virus. 非细胞致病性牛病毒性腹泻-粘膜病病毒滴定的反向斑块形成法。

National Institute of Animal Health quarterly Pub Date : 1983-01-01

O Itoh, H Sasaki, T Hanaki

引用次数: 0

Changes in leukocyte count, blood glucose and coagulation system in calves injected with Escherichia coli endotoxin. 注射大肠杆菌内毒素后犊牛白细胞计数、血糖及凝血系统的变化。

National Institute of Animal Health quarterly Pub Date : 1983-01-01

Y Yagi, Y Nakajima

引用次数: 0

Replication of hog cholera virus in porcine alveolar macrophage cultures. 猪瘟病毒在猪肺泡巨噬细胞中的复制。

National Institute of Animal Health quarterly Pub Date : 1983-01-01

S Nakamura, J Sasahara, M Shimizu, Y Shimizu

引用次数: 0

Treatment of ovarian cyst in swine by intramuscular injection with luteinizing hormone-releasing hormone analogue. 肌肉注射促黄体激素释放激素类似物治疗猪卵巢囊肿。

National Institute of Animal Health quarterly Pub Date : 1983-01-01

A Ogasa, I Domeki, Y Yokoki, S Ito

{"title":"Treatment of ovarian cyst in swine by intramuscular injection with luteinizing hormone-releasing hormone analogue.","authors":"A Ogasa, I Domeki, Y Yokoki, S Ito","doi":"","DOIUrl":"","url":null,"abstract":"The diagnosis of ovarian cyst was made in 53 anestrous sows, which were treated experimentally with luteinizing hormone-releasing hormone analogue (LH-RH-A). Each sow was injected intramuscularly with 200, 400, or 500 micrograms one to five times. She was examined by rectal palpation in the course of treatment. The blood levels of estrogen and progesterone were estimated in three of the treated sows. From changes in them was followed the process of healing of ovarian cyst. As a result, (1) the interval between the beginning of treatment and the appearance of estrus was 26.9 days on the average, the rate of appearance of estrus 60.4%, that of healing of ovarian cyst 71.6%, that of conception 70.2%, and the number of young of a littler 9.0 on the average. (2) In the three sows subjected to estimation, the blood progesterone concentration increased after injection with LH-RH-A to reach almost the same level as that estimated in the corpus-luteum stage. The time of increase after injection was almost identical with the time when the luteinization of ovarian cyst was found by palpation. In a sow which manifested normal estrus, no ovulation took place, but a cyst was formed in the ovary and the blood estrogen concentration maintained at a high level for 10 days after the beginning of estrus.","PeriodicalId":76197,"journal":{"name":"National Institute of Animal Health quarterly","volume":"23 4","pages":"150-7"},"PeriodicalIF":0.0,"publicationDate":"1983-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"17742124","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

An electron microscopic study of solar ganglia in piglets infected with Aujeszky's disease virus. 猪瘟病毒感染仔猪太阳神经节的电镜研究。

National Institute of Animal Health quarterly Pub Date : 1983-01-01

M Narita, M Osada, A Fukusho

引用次数: 0

Demonstration of Aujeszky's disease virus antigen in trypsin-digested paraffin-embedded tissue sections by immunofluorescence. 免疫荧光法在胰蛋白酶消化石蜡包埋组织切片上显示奥杰斯基氏病病毒抗原。

National Institute of Animal Health quarterly Pub Date : 1983-01-01

M Narita, S Inui, M Kobayashi, A Fukusho

引用次数: 0

A study on heifer mastitis in Japan and its causative microorganisms. 日本小母牛乳腺炎及其病原微生物的研究。

National Institute of Animal Health quarterly Pub Date : 1983-01-01

N Seno, R Azuma

{"title":"A study on heifer mastitis in Japan and its causative microorganisms.","authors":"N Seno, R Azuma","doi":"","DOIUrl":"","url":null,"abstract":"Survey and bacteriological examination were conducted on heifer mastitis in Hokkaido, the northern island of Japan over a period from 1976 to 1981. The disease occurred in heifers, mostly 13 to 18 months old, less than a half of which was pregnant in late summer or in August and September. Infection occurred predominantly in a front quarter than a rear one. Some microorganisms were isolated by the CO2 gas jet method from all the 74 secretions from the affected quarters of 67 heifers. Actinomyces pyogenes ( Corynebacterium pyogenes) was isolated from 49 secretions (66.2%), forty-six of which were involved in mixed infection with other microorganisms, including Peptococcus indolicus that was found in 41 secretions. Streptococcus dysgalactiae was isolated from 13 secretions, from nine of which were obtained pure cultures. The microorganisms harbored in secretion were much more closely associated simultaneously with A. pyogenes and P. indolicus than with A. pyogenes alone or a combination of A. pyogenes and any other microorganism than P. indolicus . This is the first report that P. indolicus was isolated from heifer mastitis in Japan. The \"score\" used for the expression of quality of milk secretion seemed to be useful for the clinical diagnosis of heifer mastitis. The disease in Hokkaido may be etiologically identical with summer mastitis found in the northern European countries.","PeriodicalId":76197,"journal":{"name":"National Institute of Animal Health quarterly","volume":"23 3","pages":"82-91"},"PeriodicalIF":0.0,"publicationDate":"1983-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"17731662","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