Proportion of Abortions due to Neosporosis among Dairy Cattle in Japan
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概要
- 論文の詳細を見る
A retrospective cohort study was conducted to clarify the association between seropositive reactions to Neospora caninum and subsequent reproductive disorders among dairy cattle in Japan. A statistically significant association between Neospora seropositive reactions and abortions was observed (P=0.016), and seropositive cattle were 6.1 times more likely to abort compared to seronegative cows. No significant differences were observed between seropositive reactions and other reproductive disorders such as conception failure, perinatal death and calf mortality. As indicated by estimation of the attributable fraction, 83.6% of abortions in Neospora seropositive animals may be attributed to N. caninum. Considering seroprevalence of N. caninum in the cattle which aborted in Japan, 21.8% of abortions were estimated to be caused by neosporosis in Japan.
- 公益社団法人 日本獣医学会の論文
著者
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Kimura Kumiko
Department Of Dermatology And Clinical Research Institute National Sapporo Hospital
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SHIMIZU Shinya
Department of Immunology, National Institute of Animal Health
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HAMAOKA Takafumi
Shichinohe Research Unit, Department of Epidemiology, National Institute of Animal Health
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HARITANI Makoto
Department of Infectious Diseases, National Institute of Animal Health
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KOIWAI Masahiro
Department of Diagnosis and Research, Animal Quarantine Service, Ministry of Agriculture, Forestry and Fisheries
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YAMANE Itsuro
Department of Epidemiology, National Institute of Animal Health
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KIMURA Kumiko
Department of Infectious Diseases, National Institute of Animal Health
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- Proportion of Abortions due to Neosporosis among Dairy Cattle in Japan