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dc.contributor.authorGarcía Ispierto, Irina
dc.contributor.authorBech Sàbat, Gregori
dc.contributor.authorSerrano, Beatriz
dc.contributor.authorNogareda, Carmina
dc.contributor.authorAlmería, S.
dc.contributor.authorSantolaria Blasco, Pilar
dc.contributor.authorLópez Gatius, Fernando
dc.contributor.authorYániz, J. L.
dc.contributor.authorSanchez Nadal, J. A.
dc.date.accessioned2016-11-07T10:56:13Z
dc.date.issued2010
dc.identifier.issn0936-6768
dc.identifier.urihttp://hdl.handle.net/10459.1/58402
dc.description.abstractThe aim of this study was to determine if the factors affecting the abortion rate in dairy herds with high incidence of Neospora-associated abortions are different in pregnancies of cows and heifers chronically infected with Neospora caninum. In heifers (n = 229), an increase in the cumulative number of days with a mean relative humidity (RH) lower than 60% during the second trimester of gestation increases the risk of abortion. Yet, the likelihood of abortion was 7.6 times lower for pregnant heifers inseminated with Limousin bull semen, compared with those inseminated with Holstein-Friesian bull semen. In pregnancies of parous cows (n = 521), an increase in rainfall and in the cumulative number of days with a mean RH lower than 60% during the second trimester of gestation increased the abortion rate. However, in contrast, an increase in the lactation number produced a decrease in the abortion rate, with a likelihood of abortion 4.8 times lower for pregnant cows inseminated with Limousin bull semen, and three times lower for those inseminated with Belgian Blue bull semen, compared with dairy cows inseminated with Holstein-Friesian bull semen. Finally, the likelihood of abortion was 3.2 times lower for pregnancies of parous cows with low antibody titres against N. caninum (6–30 units) as compared to those with high antibody titres (‡30 units), whereas in heifers this variable had no effect. The practical recommendations of the present study include the control of the cow environment during the second trimester of gestation, the priority of culling for parous cows with higher antibody titres against N. caninum and the insemination of Neospora-seropositive cows with semen from the Limousin breed.ca_ES
dc.description.sponsorshipThis work was supported by the Spanish CICYT, grants AGL2007-65521-C02-01 ⁄ GAN, AGL2007-65521-C02-02 ⁄ GAN. Serrano was supported by the Universidad de Zaragoza, grant OTRI 2007-182, and García-Ispierto and Bech-Sàbat were supported by FPU grants from the Ministerio de Educación y Ciencia, AP-2004-4279 and AP-2005-5378, respectivelyca_ES
dc.language.isoengca_ES
dc.publisherBlackwellca_ES
dc.relationMIECI/PN2004-2007/AGL2007-65521-C02-01 ⁄ GANca_ES
dc.relationMIECI/PN2004-2007/AGL2007-65521-C02-02 ⁄ GANca_ES
dc.relation.isformatofReproducció del document publicat a https://doi.org/10.1111/j.1439-0531.2008.01337.xca_ES
dc.relation.ispartofReproduction in Domestic Animals, 2010, vol. 45, núm. 4, p. 699–705ca_ES
dc.rights(c) Blackwell, 2009ca_ES
dc.titleSome factors affecting the abortion rate in dairy herds with high incidence of Neospora-associated abortions are different in cows and heifersca_ES
dc.typearticleca_ES
dc.identifier.idgrec014517
dc.type.versionpublishedVersionca_ES
dc.rights.accessRightsinfo:eu-repo/semantics/restrictedAccessca_ES
dc.identifier.doihttps://doi.org/10.1111/j.1439-0531.2008.01337.x
dc.date.embargoEndDate10000-01-01


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