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dc.contributor.authorLópez Gatius, Fernando
dc.contributor.authorMirzaei, A.
dc.contributor.authorSantolaria Blasco, Pilar
dc.contributor.authorBech Sàbat, Gregori
dc.contributor.authorNogareda, Carmina
dc.contributor.authorGarcía Ispierto, Irina
dc.contributor.authorHanzen, Ch.
dc.contributor.authorYániz Pérez de Albéniz, Jesús
dc.date.accessioned2016-11-16T12:09:26Z
dc.date.issued2008
dc.identifier.issn0093-691X
dc.identifier.urihttp://hdl.handle.net/10459.1/58532
dc.description.abstractThis study was designed to examine estrous response rates to the therapeutic treatment of clinical anestrus in high producing dairy cows and to identify the factors that could affect these rates. Cows with silent ovulation (Subestrus group), cystic ovarian disease (Cyst group) or ovarian hypofunction (OH group) were given specific treatment for their disorder. Data were derived from 1764 treatments in cows producing a mean of 45.4 kg of milk upon treatment including: 889 subestrous cows, 367 cystic cows and 508 cows with ovarian hypofunction. Cows showing estrus following treatment exhibited a similar pregnancy rate to cows attaining natural estrus used as reference: 33% (337/1006) and 35% (626/1796), respectively. No significant differences in pregnancy rates were observed among the Subestrus, Cyst and OH groups (34% (196/571), 34% (44/130), 32% (97/305), respectively. Based on the odds ratio, an estrous response for all groups was less likely to occur in cows that had suffered previous anestrus, compared to cows that were anestrous for the first time, whereas the likelihood of an estrous response increased in cows treated after 90 days in milk. Our results indicate that previous anestrus and a late stage of lactation can have a negative and positive effect, respectively, on the estrous response to the specific treatment of clinical anestrus shown by high producing dairy cows. Treatment targeted at each type of clinical anestrus can render similar pregnancy rates to those shown by cows in natural estrus.ca_ES
dc.description.sponsorshipThis work was supported by the University of Lleida and its collaborating dairy farms, grants C-0295 and C- 0506. The authors thank Ana Burton for assistance with the English translation, the owners and staff of the farms Granja San José and Allué for their cooperation and Paqui Homar for help with the data collection. García- Ispierto and Bech-Sàbat were supported by the FPU grants from the Ministerio de Educación y Ciencia, AP- 2004-4279 and AP-2005-5378, respectivelyca_ES
dc.language.isoengca_ES
dc.publisherElsevierca_ES
dc.relation.isformatofReproducció del document publicat a https://doi.org/10.1016/j.theriogenology.2008.01.023ca_ES
dc.relation.ispartofTheriogenology, 2008, vol. 69, núm. 9, p. 1095-1103ca_ES
dc.rights(c) Elsevier Inc., 2008ca_ES
dc.subjectAnestrusca_ES
dc.subjectAnovulatory folliclesca_ES
dc.subjectOvarian cystsca_ES
dc.subjectEstrous responseca_ES
dc.titleFactors affecting the response to the specific treatment of several forms of clinical anestrus in high producing dairy cowsca_ES
dc.typearticleca_ES
dc.identifier.idgrec012469
dc.type.versionpublishedVersionca_ES
dc.rights.accessRightsinfo:eu-repo/semantics/restrictedAccessca_ES
dc.identifier.doihttps://doi.org/10.1016/j.theriogenology.2008.01.023
dc.date.embargoEndDate2025-01-01


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