Proportion of abortions due to neosporosis among dairy cattle in Japan

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....

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Veröffentlicht in:Journal of Veterinary Medical Science 2005, Vol.67(11), pp.1173-1175
Hauptverfasser: Koiwai, M.(Japan. Ministry of Agriculture, Forestry and Fisheries, Yokohama. Animal Quarantine Service), Hamaoka, T, Haritani, M, Shimizu, S, Kimura, K, Yamane, I
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container_end_page 1175
container_issue 11
container_start_page 1173
container_title Journal of Veterinary Medical Science
container_volume 67
creator Koiwai, M.(Japan. Ministry of Agriculture, Forestry and Fisheries, Yokohama. Animal Quarantine Service)
Hamaoka, T
Haritani, M
Shimizu, S
Kimura, K
Yamane, I
description 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.
doi_str_mv 10.1292/jvms.67.1173
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As indicated by estimation of the attributable fraction, 83.6% of abortions in Neospora seropositive animals may be attributed to N. caninum. 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subjects ABORTION
Abortion, Veterinary - epidemiology
Abortion, Veterinary - etiology
Abortion, Veterinary - veterinary
ABORTO
Animals
AVORTEMENT
BOVIN LAITIER
Cattle
Cattle Diseases - epidemiology
Coccidiosis - complications
Coccidiosis - epidemiology
Coccidiosis - veterinary
Cohort Studies
DAIRY CATTLE
EPIDEMIOLOGIA
EPIDEMIOLOGIE
EPIDEMIOLOGY
Female
GANADO DE LECHE
IMMUNOFLUORESCENCE
INMUNOFLUORESCENCIA
Japan - epidemiology
Neospora
NEOSPORA CANINUM
Pregnancy
REPRODUCTIVE DISORDERS
Retrospective Studies
Seroepidemiologic Studies
TRASTORNOS DE LA REPRODUCCION
TROUBLE DE LA REPRODUCTION
title Proportion of abortions due to neosporosis among dairy cattle in Japan
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