All issues
Volume 45, Issue 9
Displaying 1-12 of 12 articles from this issue
- |<
- <
- 1
- >
- >|
-
Kozo TAKASE, MICHITAKA YAMAMOTO1992 Volume 45 Issue 9 Pages 639-642
Published: September 20, 1992
Released on J-STAGE: June 17, 2011
JOURNAL FREE ACCESSAvian nephritis viruses (ANVs) were isolated from 41 out of 202 fecal samples collected from 36 chicken flocks during the 1989 to 1990 period using embryonating chicken eggs (ECE). Although 10 out of 15 isolates produced cytopathic effect (CPE), this characteristic was unstable throughout three passages in chicken kidney (CK) cultures. Some isolates showed lethal pathogenicity for ECE when inoculated with the viruses either via allantoic cavity into 10-day-old ECE or via yolk sac into 6-day-old ECE. However, there is no correlation between the pathogenicity for ECE and ability to produce CPE in CK cultures. Two isolates were shown by the indirect fluorescent-antibody test to be identical with the reference strain G-4260 which was isolated in 1978, while the remaining 13 isolates were identical with the strain AAF 7 which was isolated in 1988. These findings suggested that ANVs are variable in their pathogenicity and antigenicity.View full abstractDownload PDF (716K) -
HITOMI HORI, SATOSHI OSAME, SHIGERU ICHIJO1992 Volume 45 Issue 9 Pages 643-645
Published: September 20, 1992
Released on J-STAGE: June 17, 2011
JOURNAL FREE ACCESSTwelve calves, 25 to 47days old, were examined for levels of serum and red blood cell tocopherol after administration orally or with suckling of dl-α-tocopherol acetate (1000mg) of liquid and powder-type. Calves administered a liquid form of Vitamin E and a powder-type with suckling and a liquid-type orally showed mostly the same blood tocopherol level patterns. The peaks of the tocopherol levels were observed in serum after 8hrs and in red blood cells 24hrs after administration, respectively. Comparing the liquid and powder-type with suckling, the blood tocopherol levels in the group of the liquid-type were significantly higher than those of the powder-type. Furthermore, the group with administered by the suckling liquidtype showed markedly higher levels of blood tocopherol than those orally administered.
From the findings described above, it was concluded that increases in the blood tocopherol levels after administration of vitamin E premix to calves were greater in the suckling-type than the oral administered type, and use of the liquid-type was more effective than the powder-type.View full abstractDownload PDF (456K) -
TAKASHI NAKAMURA, NOBORU MACHIDA, SHIN MUKAI, TAKESHI IIZUKA, KEIJI KI ...1992 Volume 45 Issue 9 Pages 646-649
Published: September 20, 1992
Released on J-STAGE: June 17, 2011
JOURNAL FREE ACCESSAortas, brachiocephalic arteries and sciatic arteries from 28 female and 10 male Rhode Island Reds were examined histopathologically. The intimal lesions characterized by mild to severe thickening consisted of an increase in the smooth muscle cells or fibrous tissues, or both. In descending order of extent and severity of the intimal lesions, the arrangement was the sciatic artery, abdominal aorta cranial to the origin of the celiac artery, brachiocephalic artery, distal portion of the thoracic aorta and aortic arch. In addition, there were edematous changes and proliferation of collagenous and elastic fibers in the media. Such changes were observed mainly in the abdominal aorta and sciatic artery.View full abstractDownload PDF (6226K) -
KENJI UNO, KAZUKI TAKESUE, MASAYUKI FUTO, HIROSHI TANI1992 Volume 45 Issue 9 Pages 650-654
Published: September 20, 1992
Released on J-STAGE: June 17, 2011
JOURNAL FREE ACCESSAttaching and effacing Escherichia coli (AEEC) infection with muco-hemorrhargic diarrhea occurred in 3 calves raised on separate farms in Shiga Prefecture from 1989 to 1990. The calves died 5, 11 and 17days after birth, respectively. Characteristic findings observed by postmortem examinations were congestion in the mucous membrane from the jejunum through colon and swelling of the mesenteric lymph node. Microscopically, enteric lesions observed in the ileum through rectum consisted of a catarrhal inflammation accompaning with attaching of a lot of small rod-shaped bacteria to the surface of epithelial cells. An electron microscopic observation revealed the effacing of microvilli of epithelial cells attached by bacteria. The bacteria observed in the tissue of each calf possessed E. coli O 26, O 119 and O 111 antigen respectively which were determined by an immunoperoxidase technique. Although a few cases of AEEC infection were reported in Japan, the results indicated that of incidence the disease might not be rare.View full abstractDownload PDF (6047K) -
NOZOMI OKADA, SATOSHI MURAKAMI, RITSUKO MIWA, YASUHIRO HARA, TAKASHI M ...1992 Volume 45 Issue 9 Pages 655-659
Published: September 20, 1992
Released on J-STAGE: June 17, 2011
JOURNAL FREE ACCESSSwine abortion was frequently seen on a farm in 1990. Four of the fetuses which were aborted at 95-102 days of gestation showed varying degrees of petechial and ecchymotic hemorrhages on their skin with subcutaneous edema. Macroscopically, the fetuses had free reddish fluid in the thoracal and peritoneal cavities, hepatomegaly, with a mottled reddish-yellow color, linear hemorrhaging in the heart and enlargement of the lymph nodes. However, six of the fetuses at 72-95days of gestation did not show any specific changes. Microscopically, nonsuppurative choriomeningitis, degenerated and necrotic hepatocytes, epi-or endocarditis, angitis were observed. Chlamydial inclusion bodies were confirmed in the cytoplasm of infiltrated monocytes, hepatocytes and trophoblastic cells by immunohistochemical staining. In addition, Chlamydia psittaci (C. psittaci) was isolated from 2 fetuses with severe lesions. Serological and bacteriological examinations did not reveal any evidence suggestive of abortion in swine due to Aujeszky's disease virus, Japanese encephalitis virus, porcine parvovirus, Getah virus, Toxoplasma gondii and Escherichia coli. On the other hand, Chlamydial antibodies were detected among many sows and fattening pigs. This is the first report in the literature of C. psittaci-caused swine abortion in Japan.View full abstractDownload PDF (6760K) -
1992 Volume 45 Issue 9 Pages 660-670
Published: September 20, 1992
Released on J-STAGE: June 17, 2011
JOURNAL FREE ACCESSDownload PDF (36248K) -
1992 Volume 45 Issue 9 Pages 671-676
Published: September 20, 1992
Released on J-STAGE: June 17, 2011
JOURNAL FREE ACCESSDownload PDF (1308K) -
NAOYUKI ITOH, SAYAKO ITOH1992 Volume 45 Issue 9 Pages 680-682
Published: September 20, 1992
Released on J-STAGE: June 17, 2011
JOURNAL FREE ACCESSThe osmotic fragility of erythrocytes was investigated in 16 dogs naturally infected with Babesia gibsoni and in 6 uninfected dogs (control). The osmotic fragility of erythrocytes in a 0.5% buffered saline (pH 7.4) was significantly increased in the infected dogs as compared with that of the control dogs (p<0.001). The increased osmotic fragility of erythrocytes in the infected dogs returned to the value of control dogs following disappearance of the organisms after medication.View full abstractDownload PDF (561K) -
HIDETOSHI SHITAKA, HIROSHI MAEDA, YUUKO SAWASHIMA, Kou SAWASHIMA1992 Volume 45 Issue 9 Pages 683-686
Published: September 20, 1992
Released on J-STAGE: June 17, 2011
JOURNAL FREE ACCESSA 12-year-old, castrated male, mongrel dog which had been splenectomized for primary hypersplenism developed enlargement of the submaxillary lymph node and nodular skin lesions 17months after the operation. Histopathological examination of the removed node revealed focal proliferation of atypical lymphocytes. Though the skin lesions once regressed by prednisolone, cyclophosphamide and vincristine treatment in the early stage, the enlargement of the submaxillary lymph nodes and skin lesions recurred and the dog died 213 days after therapy started. By histopathological examination of the necropsy specimen, the present case was diagnosed as epidermotropic, multicentric form of malignant lymphoma.View full abstractDownload PDF (5712K) -
1992 Volume 45 Issue 9 Pages 687-689
Published: September 20, 1992
Released on J-STAGE: June 17, 2011
JOURNAL FREE ACCESSDownload PDF (654K) -
YASUTOMO ARASHIMA, KINYA KAWANO, TADAO IKEDA, YOSHIHITO MOGAMI, RYUJI ...1992 Volume 45 Issue 9 Pages 694-697
Published: September 20, 1992
Released on J-STAGE: June 17, 2011
JOURNAL FREE ACCESSTo obtain epidemiological data on Lyme disease (LD) in Saitama Prefecture, anti-Borrelia burgdorferi (Borrelia) antibody was measured in the sera from 175 dogs and 30 negative control dogs using the enzymelinked immunosorbent assay (ELISA). The anti-Borrelia antibody titer was high in 22 (12.57%) of the 175 dogs. The different results from those of our previous report might have resulted from samples which were collected mainly from veterinary clinics. In districts where the antibody titer was significantly higher than that of the control dogs, the samples were obtained from the clinics in the northern and southern areas of Saitama Prefecture. and from the Division of Envilromental Biology of Chitchibu and Kawagoe areas. The data suggested that the exposure to ticks caused a higher incidence. The antibody titers significantly differed between the groups with and without tick bites but not between males and females the groups vaccinated and non-vaccinated with leptospires or hounds and the other dogs.
The data suggested that there might be dogs infected with Borrelia burgdorferi in Saitama Prefecture. The dogs may be a possible reservoir host. Particular attention should be given to such conditions as zoonoses, especially a correlation study regarding ticks and dogs in Saitama Prefecture.View full abstractDownload PDF (684K) -
1992 Volume 45 Issue 9 Pages 698-701
Published: September 20, 1992
Released on J-STAGE: June 17, 2011
JOURNAL FREE ACCESSDownload PDF (893K)
- |<
- <
- 1
- >
- >|