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

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 carr...

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Detalles Bibliográficos
Autores: López Gatius, Fernando, García Ispierto, Irina, Hanzen, Christian
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2021
País:España
Institución:Universitat de Lleida (UdL)
Repositorio:Repositori Obert UdL
OAI Identifier:oai:repositori.udl.cat:10459.1/73159
Acceso en línea:https://doi.org/10.1262/jrd.2021-090
http://hdl.handle.net/10459.1/73159
Access Level:acceso abierto
Palabra clave:Twin pregnancies
Bessons
Avortament en els animals
Vaques
Descripción
Sumario: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.