Unilateral twin pregnancy: a non-infectious factor required for the etiological diagnosis of abortion in dairy herds

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2021Suggested citation
López Gatius, Fernando;
García Ispierto, Irina;
Hanzen, Christian;
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(2021)
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Unilateral twin pregnancy: a non-infectious factor required for the etiological diagnosis of abortion in dairy herds.
Journal Reproduction and Development, 2021, vol. 67, núm. 6..
https://doi.org/10.1262/jrd.2021-090.
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Twin pregnancies are classified into bilateral (one fetus in each uterine horn: 44%) and unilateral (both fetuses in the same uterine horn, right or left: 56%). The incidence of abortion during mid- to late gestation is approximately 1% in cows carrying bilateral twins and more than 40% in cows carrying unilateral twins. In this period, abortion seems most commonly associated with infectious agents. However, although this imbalanced abortion rate may imply that unilateral twin pregnancy is a non-infectious abortion factor, few available data can describe the cause of abortions in twin pregnancies. The current findings suggest that unilateral twin pregnancy is a non-infectious factor required for the etiological diagnosis of abortion in dairy herds.
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Journal Reproduction and Development, 2021, vol. 67, núm. 6.European research projects
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