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Utilize este identificador para citar ou criar um link para este item: http://acervodigital.unesp.br/handle/11449/14131
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dc.contributor.authorVasconcelos, José Luiz Moraes-
dc.contributor.authorDemetrio, D G B-
dc.contributor.authorSantos, R. M.-
dc.contributor.authorChiari, J R-
dc.contributor.authorRodrigues, Celso Antonio-
dc.contributor.authorSa, O. G.-
dc.date.accessioned2014-02-26T17:23:52Z-
dc.date.accessioned2014-05-20T13:40:43Z-
dc.date.accessioned2016-10-25T16:56:01Z-
dc.date.available2014-02-26T17:23:52Z-
dc.date.available2014-05-20T13:40:43Z-
dc.date.available2016-10-25T16:56:01Z-
dc.date.issued2006-01-07-
dc.identifierhttp://dx.doi.org/10.1016/j.theriogenology.2005.09.030-
dc.identifier.citationTheriogenology. New York: Elsevier B.V., v. 65, n. 1, p. 192-200, 2006.-
dc.identifier.issn0093-691X-
dc.identifier.urihttp://hdl.handle.net/11449/14131-
dc.identifier.urihttp://acervodigital.unesp.br/handle/11449/14131-
dc.description.abstractObjectives of this study were to evaluate factors that could affect pregnancy rate after embryo transfer (ET) in lactating dairy cow recipients. The trial was conducted at a dairy farm located in Descalvado, SP, Brazil from October 2003 to September 2004. From 1037 cows with CL that were treated with an injection of PGF(2 alpha), 43.3% were detected in heat; 263 were previously assigned at day of PGF(2 alpha) injection for AI and 186 for ET. Ovulation rate was 85.7% (385/449). Pregnancy rate for cows with CL for AI and embryo transfer recipients were 36.5% (84/230) and 58.7% (91/155) at day 25 and 33.0% (76/230) and 45.8% (71/155) at day 46, respectively. Embryonic loss were 9.5% (8/84) for the AI group and 21.9% (20/91) for the ET group. Average milk production was 31.4 L/day/cow. Average daily milk production from 7 days before PGFZ injection to 7 days after ET tended (P < 0.10) to influence pregnancy rate on days 25 and 46. Average daily milk production from the day of embryo transfer to 7 days after influenced embryonic loss (P < 0.05). Cows with higher milk production had lower probability of pregnancy and higher probability of embryonic loss. Cows with higher days in milk had higher probability of pregnancy. Cows with higher rectal body temperature had lower probability of pregnancy and higher probability of embryonic loss. The influence of high milk yield and body temperature on fertility in lactating dairy cow recipients suggests that these effects can occur also after embryo reaches the blastocyst stage. (c) 2005 Elsevier B.V. All rights reserved.en
dc.format.extent192-200-
dc.language.isoeng-
dc.publisherElsevier B.V.-
dc.sourceWeb of Science-
dc.subjectembryo transferpt
dc.subjectmilkpt
dc.subjectcowspt
dc.subjectheat stresspt
dc.subjectpregnancy ratept
dc.titleFactors potentially affecting fertility of lactating dairy cow recipientsen
dc.typeoutro-
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)-
dc.contributor.institutionCtr Biotecnol Reprod Bovinos-
dc.contributor.institutionClin Vet Samvet-
dc.description.affiliationUniv Estadual Paulista Julio Mesquita Filho, FMVZ, Dept Anim Prod, Botucatu, SP, Brazil-
dc.description.affiliationCtr Biotecnol Reprod Bovinos, Samvet Embrioes, Morrinhos, Go, Brazil-
dc.description.affiliationUNESP, Fac Ciências Agr & Vet, Jaboticabal, SP, Brazil-
dc.description.affiliationClin Vet Samvet, Sao Carlos, SP, Brazil-
dc.description.affiliationUnespUniv Estadual Paulista Julio Mesquita Filho, FMVZ, Dept Anim Prod, Botucatu, SP, Brazil-
dc.description.affiliationUnespUNESP, Fac Ciências Agr & Vet, Jaboticabal, SP, Brazil-
dc.identifier.doi10.1016/j.theriogenology.2005.09.030-
dc.identifier.wosWOS:000234013900017-
dc.rights.accessRightsAcesso restrito-
dc.relation.ispartofTheriogenology-
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