Journal of the Japan Veterinary Medical Association
Online ISSN : 2186-0211
Print ISSN : 0446-6454
ISSN-L : 0446-6454
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Volume 64, Issue 2
Displaying 1-5 of 5 articles from this issue
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The Japanese Society of Farm Animal Veterinary Medicine
  • Relationship Between Thyroid Function and the Resumption of the Ovarian Cycle Postpartum in Dairy Cows
    Mamiko ONO, Tadatoshi OHTAKI, Naohito KUSAKARI, Daiji KONNO, Shigehisa ...
    Article type: Original Article
    2011 Volume 64 Issue 2 Pages 135-139
    Published: February 20, 2011
    Released on J-STAGE: May 26, 2017
    DOIhttps://doi.org/10.12935/jvma.64.135
    JOURNAL FREE ACCESS
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    Using 46 dairy cows, the relationship between the resumption of the ovarian cycle postpartum and the thyroid hormone (T3 and T4) levels around calving was clarified, and its association with insulin-like growth factors (IGF-1), blood chemistry, and later reproductive performance was investigated. The cows were divided into early (n ＝23) and delayed (n ＝23) recovery groups, within which ovarian function recovered either within 50 days or 51 days or later after calving, respectively. The T3 and T4 levels were significantly lower in the delayed recovery group than in the early recovery group. The dry matter intake was significantly lower in the delayed recovery group from week -2 through week 1, and the IGF-1 level in weeks 1 and 2 after calving showed a significant positive correlation with the T4 level. The number of days open was significantly prolonged in the delayed recovery group compared to the early recovery group. These findings suggest that food intake and thyroid hormone levels are high in cows whose ovarian function recovers rapidly after calving, and their later reproductive performance is favorable.
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  • Nonsuppurative Encephalomyelitis of Calves Caused by Akabane Virus Genogroup Ⅱ
    Hiromichi MITAKE, Seiichi SHOZU, Yoshie TAKEDA, Nobumasa KATO, Shogo T ...
    Article type: Short Communication
    2011 Volume 64 Issue 2 Pages 140-144
    Published: February 20, 2011
    Released on J-STAGE: May 26, 2017
    DOIhttps://doi.org/10.12935/jvma.64.140
    JOURNAL FREE ACCESS
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    Two calves showed neurological symptoms such as astasia, dysstasia and ataxia in Fukui Prefecture during the wide-ranging epidemic of Akabane disease from Kyushu to Hokuriku regions in 2008. Nonsuppurative encephalomyelitis was observed in the calves by histopathological examination. Akabane viral antigen and genome were consistently detected from the central nervous system of the calves through immunohistochemistry and RT-PCR, respectively, and the virus was isolated from one of them. Based on these findings, these two calves were diagnosed with postnatal Akabane virus infection. Through phylogenetic analysis, the isolate was classified into genogroup Ⅱ, which has not been isolated from Akabane viral encephalomyelitis in cattle by postnatal infection.
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The Japanese Society of Small Animal Veterinary Medicine
  • The Measurement of Glycohemoglobin in Dogs and Cats Using High Performance Liquid Chromatography
    Eiji UCHIDA, Mami AKIBA, Kenji MATSUDA, Tatsuhiko MACHIDA, Satomi ABE, ...
    Article type: Original Article
    2011 Volume 64 Issue 2 Pages 145-149
    Published: February 20, 2011
    Released on J-STAGE: May 26, 2017
    DOIhttps://doi.org/10.12935/jvma.64.145
    JOURNAL FREE ACCESS
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    Glycohemoglobin (HbA1c) levels in dogs and cats were measured using high performance liquid chromatography. The results of intra- and inter-assay variability and the addition recovery test of the measurement system were excellent. HbA1c levels were significantly higher in the dogs and cats in the diabetic group than in those in the clinically healthy group and the group with various diseases without accompanying sustained hyperglycemia. The reference HbA1c value calculated from the data of non-diabetic dogs (in the healthy group and non-hyperglycemic disease group) was in a range between 2.2% and 3.4%. The reference value of the cat HbA1c, similarly calculated, was in a range between 1.8% and 2.7%. The measurement of HbA1c levels using automated HPLC (HLC-723GHb V) in this study is considered to be a useful method of monitoring fluctuations in the blood sugar levels of cats and dogs.
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  • Detection of New Hemoplasma ‘Candidatus Mycoplasma turicensis’ Infection in Domestic Cats in Japan
    Masashi WATANABE, Masaharu HISASUE, Takehisa SOMA, Kazuhiko NAMIKAWA, ...
    Article type: Short Communication
    2011 Volume 64 Issue 2 Pages 150-153
    Published: February 20, 2011
    Released on J-STAGE: May 26, 2017
    DOIhttps://doi.org/10.12935/jvma.64.150
    JOURNAL FREE ACCESS
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    A novel feline hemoplasma strain, the ‘Candidatus Mycoplasma turicensis’ (CMt) infection, was detected in 66 out of 501 (13.2%) domestic cats in Japan using conventional single-step PCR. The sensitivity of this PCR was estimated to be 47 copies/μl of CMt. In the present study, 72.7% of the 66 CMt-infected cats were over 7 years old (mean : 10.7 ±3.27 years old), meaning that CMt infection was frequently seen in older cats. Previous reports on CMt infection stated that it was coinfected with other hemoplasma species, but we detected 26 single infections (5.2%) of the CMt strain. The other 40 CMt-infected cats were coinfected : 20 with C.M. haemominutum and 17 with M. haemofelis, and the three remaining CMt-infected cats had triple infections.
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The Japanese Society of Veterinary Public Health
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