Journal of the Japan Veterinary Medical Association
Online ISSN : 2186-0211
Print ISSN : 0446-6454
ISSN-L : 0446-6454
Volume 51 , Issue 11
Showing 1-12 articles out of 12 articles from the selected issue
  • Kazue SAIJO, Minoru HIGASHIHARA
    1998 Volume 51 Issue 11 Pages 647-651
    Published: November 20, 1998
    Released: June 17, 2011
    JOURNALS FREE ACCESS
    The optimal time of initial vaccination with a mild-type live IBD vaccine in chicks with maternally derived antibody (MDA) was studied. The half-life of MDA was 3.46 days, and critical MDA titer to protect from infection with field virus was 1: 28. The protective immunity was acquired 6 days after vaccination, and an MDA titer of 1: 28 interfered with active immunization. If the initial vaccination should be made at age when geometric mean MDA titer lowered to 1: 80, the optimal time (Y) was calculated from age of MDA titration in days (Z) and log10 geometric mean MDA titer (X) of flocks by the following formula; Y=11.49X+Z-21.87.
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  • Yoshihide USAMI, Osamu YAMAGUCHI, Kaori KUMANOMIDO, Yasuyoshi MATSUMUR ...
    1998 Volume 51 Issue 11 Pages 652-655
    Published: November 20, 1998
    Released: June 17, 2011
    JOURNALS FREE ACCESS
    At 31 days after the 2nd vaccination of porcine epidemic diarrhea virus (PEDV) live vaccine the vaccinated sows were shown to have antibody titers of 1: 4 to 1: 128, and the titers were 1: 4 or 1: 8 at six months after vaccination. Maternally derived antibodies in piglets from the vaccinated sows disappeared around 2 months of age.
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  • Yoshihide USAMI, Osamu YAMAGUCHI, Kaori KUMANOMIDO, Yasuyoshi MATSUMUR ...
    1998 Volume 51 Issue 11 Pages 656-658
    Published: November 20, 1998
    Released: June 17, 2011
    JOURNALS FREE ACCESS
    Sera collected from pig farms in Tochigi Prefecture were examined for neutralizing antibody against porcine epidemic diarrhea (PED) virus. Antibody was detected in 9 of 34 (26.5%) cities and towns, 13 of 88 (14.8%) farms and 63 of 1, 183 (5.3%) pigs, while no apparent cases suspected of PED were recognized.
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  • Morio HADA, Naomi HASHIMOTO, Toyoko FUKUTOMI, Kouken OKUDA
    1998 Volume 51 Issue 11 Pages 659-661
    Published: November 20, 1998
    Released: June 17, 2011
    JOURNALS FREE ACCESS
    From July to December in 1996 at hoggery in Okayama Prefecture, about 270 piglets showed edema of eyelids and nervous symptom about 10 days after weaning and acutely died. Three killed or dead pigs were necropsied, revealing histopathologically fibrinoid and hyaline degeneration of vascular walls in the brain stem and the submucosa of the small intestine. Verotoxigenic Escherichia coli (VTEC) O 139 was isolated from the brain, lymph nodes and intestinal contents. VTEC O139 of the same serotype as isolats from the dead cases was also detected from storage tank and drinking water in the hoggery, and no more outbreaks occurred after chlorinating water and complete sweeping-out and disinfecting of the farmhouses.
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  • Akiteru AMIMOTO, Toshiyuki SUZUKI, Michinobu NOGUCHI, Hisae HACHIMURA, ...
    1998 Volume 51 Issue 11 Pages 665-668
    Published: November 20, 1998
    Released: June 17, 2011
    JOURNALS FREE ACCESS
    A 5.5-month-old male Shih Tzu with the unerupted maxillary deciduous canines and swelling of the alveolar mucosa was shown to have bilateral impacted deciduous canines by X-ray examination. The crown of the left deciduous canine was partially erupted from the jaw bone showing a unilocular radiolucent area around the crown, and a small amount of clear and mucous fluid was obtained by exploratory puncture, suggesting the presence of an odontogenic cyst. The impacted left deciduous canine was extracted and the cyst wall was removed with a curet, resulting in normal eruption of the left upper canine after treatment. Histopathology of the removed specimen revealed a cystic structure lined by the non-keratinized stratified squamous epithelium with bud-like proliferation, and the case was diagnosed as odontogenic eruption cyst.
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  • Yuichi YAMAMURA, Yasuaki TOKITA, Yusaku UEHARA
    1998 Volume 51 Issue 11 Pages 669-671
    Published: November 20, 1998
    Released: June 17, 2011
    JOURNALS FREE ACCESS
    A 5-year-old mongrel male cat showing swelling of multiple pads with or without hemorrhage, was diagnosed as feline plasma cell pododermatitis by clinical, hematological and histopathological findings. The case was subjected to surgical debridement of the affected metacarpal pads and local injections of prednisolone for 20 days. No recurrence was seen at 20 months postoperation.
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  • Yasuho TAURA, Yoshihiro OHMICHI, Atsuo TAGA, Takeshi TSUKA, Hiroaki KO ...
    1998 Volume 51 Issue 11 Pages 672-675
    Published: November 20, 1998
    Released: June 17, 2011
    JOURNALS FREE ACCESS
    A 9-year-old, spayed female Shih-Tzu had vomiting, stranguria and hematuria and abdominal radiography and intravenous pyeliography revealed calculi in the left kidney and abscence of the right kidney. Emergent operation was performed to remove the renal calculi, and postoperatively, genaral physical conditions were well recovered without any significant clinical signs.
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  • Morihiro SAITO, Yutaka SHIBATA, Masanori KUBO, Hiroshi ITAGAKI
    1998 Volume 51 Issue 11 Pages 679-682
    Published: November 20, 1998
    Released: June 17, 2011
    JOURNALS FREE ACCESS
    Seven of 100 wild boars (Sus sucrofa) captured in Saitama, Gunma and Fukushima Prefectures, Japan, were positive for Sarcocystis cysts by light-or electron-microscopy. Fresh mature cysts from the diaphragm and heart were 450-2, 120×115-140μm in size, and the cyst wall 4 to 6μm thick showed a palisade-like structure. Scanning electron microscorsy revealed mamy villar protrusions 4μm in length and 1μm in width on the cyst surface. Nine or more days after ingestion of the infected boar muscle, two 6-month-old dogs excreted oocysts and sporulated sporocysts 12-13×10μm in size, in the feces. Based upon the Size and fine Structure of cysts and host Specificity, the detected species was identified as S. miescheriama Kuhn, 1865.
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  • Morihiro SAITO, Yutaka SHIBATA, Masanori KUBOTA, Hiroshi ITAGAKI
    1998 Volume 51 Issue 11 Pages 683-686
    Published: November 20, 1998
    Released: June 17, 2011
    JOURNALS FREE ACCESS
    Two species of Sarcocystis were detected from the diaphragm muscle of 124 (91.2%) of 136 sika deer, Cervus nippon centralis and Corvus nippon yesoensis, which were captured in Saitama, Gunma and Hokkaido Prefectures, Japan from November, 1994 to January, 1998. The infection rates of one species with the thick (8-10 μm) radialley striated cyst wall (S. sp.1) and the other with the thin (<1μm) smooth wall (S sp.2), were 84.6% and 22.1%, respectively. Cysts of S sp.1 (1, 050-2, 060×60-112μm) provided with finger-like Villar prot trusions (7-9×0.3-0.4μm) on the surface, while those of S sp.2 (680-1, 120×86-132μm) had hair-like protrusions (7-8×0.3-0.4μm). Two each of 6-month-old dogs shed sporulated sporocysts (15-17×10-12μm and 16-17×10-11μm) in the feces 12 and 10 days or later after ingestion of S. sp.1 and S.sp. 2 cysts, respectively.
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  • Keiji HARA, Masaki WATANABE, Satosi YOSIZAKI, Tosirou ENDOU, Tatuya YO ...
    1998 Volume 51 Issue 11 Pages 687-691
    Published: November 20, 1998
    Released: June 17, 2011
    JOURNALS FREE ACCESS
    Hog carcasses skinned by a standing-type skin stripper were examined for microbiological and hog hair contamination. After skinning, the totao viable counts of bacteria were<1-<102CFU/cm2 and no bacteria were detectable from 34 of 54 cases examined. However, microbiological contamination was recognized from dressed carcasses, showing total viable counts of 101-<104CFU/cm2, and 17 of 30 samples showed 102-<103CFU/cm2. By hygienic handling and washing with hot water, microbiological contamination decreased showing the total viable counts of 1-<102CFU/cm2, and the counts were 101-<102CFU/cm2 in 16 of 24 samples. The average number of hog hairs per carcass was 48.8, a significantly lower value (p<0.01) as compared to the values (104.1) of the bed-type skinner carcasses.
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  • [in Japanese]
    1998 Volume 51 Issue 11 Pages 695-696
    Published: November 20, 1998
    Released: June 17, 2011
    JOURNALS FREE ACCESS
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  • 1998 Volume 51 Issue 11 Pages 700-706
    Published: November 20, 1998
    Released: June 17, 2011
    JOURNALS FREE ACCESS
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