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Volume 62, Issue 8
Displaying 1-6 of 6 articles from this issue
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The Japanese Society of Farm Animal Veterinary Medicine
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Erika TANAMI , Hiromichi OHTSUKA, Machiko MUKAI, Masayuki KOHIRUIMAKI, ...Article type: Original Article
2009 Volume 62 Issue 8 Pages 623-629
Published: August 20, 2009
Released on J-STAGE: September 03, 2016
JOURNAL FREE ACCESSTo clarify the effect of the nutritive condition of a dam in late pregnancy on the immunity of postnatal Japanese Black (JB) calves, the peripheral leukocyte population was observed in JB calves from dams receiving different feed content during the last pregnancy. The combined total of 33 dams and calves were fed in one herd,but divided four groups based on feed content during the last pregnant period : insufficient nutrition and first calving (N ＝5), insufficient nutrition and calving history (N ＝8), sufficient nutrition and first calving (N ＝7), and sufficient nutrition and calving history (N＝13). The observation revealed that the numbers of CD4＋ CD45R＋ T cell, CD8＋ CD45R＋T cell and B cells were higher in the group with sufficient nutrition and calving history than those in calves in the insufficient nutrition and calving history group. This finding suggested that the peripheral leukocyte population in JB calves could be susceptible to the feed given to their dam during the last pregnancy.View full abstractDownload PDF (314K) -
Yasuo NAMBO, Hiroaki TATEE, Yasumitsu KOTOYORI, Michio KOMANO, Hidetos ...Article type: Original Article
2009 Volume 62 Issue 8 Pages 630-635
Published: August 20, 2009
Released on J-STAGE: September 03, 2016
JOURNAL FREE ACCESSWeekly changes in serum progesterone (P4) concentrations from 26 normal pregnant mares were determined through time-resolved fluorescence immunoassay (TR-FIA). A comparison was also made with changes in seven mares with early pregnancy loss at approximately 5 and 9 weeks of gestation. Mean concentrations of P4 showed biphasic changes with peaks at two weeks (12.3 ng/ml) and at 7-15 weeks (14.8-17.0 ng/ml) of gestation, which were associated with the formation of primary and supplementary corpora lutea. Thereafter, P4 levels remained low (3-4 ng/ml) during mid to late gestation, before showing gradual increases 5 weeks before parturition, followed by an abrupt fall after parturition. There is no significant difference in the serum con centrations of P4 between mares with normal pregnancies and four mares with pregnancy loss at around five weeks from 0 to 4 weeks of gestation, whereas serum concentrations of P4 were significantly lower in three mares with pregnancy loss at around nine weeks than those in mares with normal pregnancies two weeks prior to fetus loss. These pregnancy losses resulted in the maintenance of circulating P4 levels at a range of 3 to 6 ng/ml, due to a lack of luteolysis. The present result demonstrated weekly changes in P4 levels during preg nancies in mares. TR-FIA is a practical and rapid method to determine equine P4 levels. These results also suggest that P4 may become a good indicator as a prediction of early fetus loss in mares.View full abstractDownload PDF (297K) -
Michihito TAGAWA, Natsumi TANI, Ayano KAJIWARA, Yoshiyasu KOBAYASHI, ...Article type: Short Communication
2009 Volume 62 Issue 8 Pages 636-639
Published: August 20, 2009
Released on J-STAGE: September 03, 2016
JOURNAL FREE ACCESSA 10-month-old female Holstein heifer showed a sudden onset of clinical symptoms of head tilt, circling,increased extensor tone of all legs, and decreased level of consciousness. Cerebrocortical necrosis was suspected, and an administration of vitamin B1, corticosteroids, and anti-biotic was performed without a successful response. At necropsy, a neoplastic mass with a diameter of 3.5 cm in the cerebellum, dilated lateral ventricles on both sides and enlargement of the aqueducts cerebra were found. Findings suggest that cerebral cortex and brainstem signs had appeared as well as cerebellum signs through compression of the brainstem by cerebellar tumor and secondary hydrocephalus caused by obstruction of the cerebrospinal fluid. The neoplastic mass was diagnosed as ependymoblastoma by histopathological examination.View full abstractDownload PDF (444K)
The Japanese Society of Small Animal Veterinary Medicine
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Yasutsugu MIWA, Atsushi FUJITA, Kumiko KATO, Kazuyuki UCHIDA, Hiroyuki ...Article type: Short Communication
2009 Volume 62 Issue 8 Pages 641-644
Published: August 20, 2009
Released on J-STAGE: September 03, 2016
JOURNAL FREE ACCESSA four-year-old spayed domestic ferret was referred to the Veterinary Medical Center at the University of Tokyo for exophthalmos of the left eye. Based on clinical signs and laboratory findings, the exophthalmos was caused by the orbital mass. Enucleation and orbital exenteration was performed. On immunohistochemistry,the tissue showed pan keratin and NSE positive, vimentin and desmin negative, and the tumor was therefore estimated to be epithelial in origin. However, the origin of the tumor cells was not confirmed. The ferret died six months later, and a necropsy was performed. Based on the histology, the mass was diagnosed as orbital adenocarcinoma. ―View full abstractDownload PDF (318K) -
Ryoko NAKAMURA, Hiroki SAKAI, Mitsutaka NAKAMURA, Tokuma YANAI, Takash ...Article type: Short Communication
2009 Volume 62 Issue 8 Pages 645-647
Published: August 20, 2009
Released on J-STAGE: September 03, 2016
JOURNAL FREE ACCESSA 15-year-old, male, domestic shorthair cat had developed a gingival mass near the first premolar of the cheek side of the left maxilla. Macroscopically, the tumor was not demarcated and its color was the same as gingiva. Histopathologically, the tumor consisted of sheets or cords of neoplastic odontogenic cells, which were positive for cytokeratin. A direct fast scarlet-positive amyloid deposit existed along the proliferation of neoplastic cells, and calcification was also observed. The present case was diagnosed as an amyloid-producing odontogenic tumor.View full abstractDownload PDF (333K)
The Japanese Society of Veterinary Public Health
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Shogo YAMASAKI, Yuji MIGITA, Makiko NAKAMURA, Nobutaka URA, Yukiko HA ...Article type: Original Article
2009 Volume 62 Issue 8 Pages 649-655
Published: August 20, 2009
Released on J-STAGE: September 03, 2016
JOURNAL FREE ACCESSThe present study was conducted to understand the effects of environmental factors on Vibrio vulnificus (V. vulnificus) cell counts using most probable number (MPN)-PCR in the waters of the Ariake Sea and Tachibana Bay, Nagasaki Prefecture, Japan. The authors also surveyed V. vulnificus cell counts in seafood harvested from these two sites. Maximum V. vulnificus cell counts in the seawater were 4.50 ×104 ±17.1 MPN/100ml in July in the Ariake Sea. In contrast, the maximum cell counts were found in August in Tachibana Bay. V. vulnificus cell counts in the seawater were positively correlated with the water temperature (rs＝0.711) and negatively correlated with salinity (rs ＝－0.712). Moreover, the values of R2 of dissolved oxygen, total nitrogen and chlorophyll a were above 0.1. V. vulnificus cell counts in marine products were a maximum 106 MPN/100 g,while isolation rates were 90% in bivalves and 94.1% in fish from the Ariake Sea.View full abstractDownload PDF (385K)
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