Influence of temperature-humidity index on conception rate of Nelore embryos produced in vitro in northern Brazil

Registro completo de metadados
MetadadosDescriçãoIdioma
Autor(es): dc.contributorFederal University of Acre-
Autor(es): dc.contributorIn Vitro Acre-
Autor(es): dc.contributorUniversidade Estadual Paulista (Unesp)-
Autor(es): dc.creatorCordeiro, A. L.L.-
Autor(es): dc.creatorSatrapa, R. A.-
Autor(es): dc.creatorGregianini, H. A.G.-
Autor(es): dc.creatorGregianini, J. T.F.-
Autor(es): dc.creatorMaia, G. F.N.-
Autor(es): dc.creatorLandim-Alvarenga, F. C. [UNESP]-
Data de aceite: dc.date.accessioned2022-02-22T00:28:04Z-
Data de disponibilização: dc.date.available2022-02-22T00:28:04Z-
Data de envio: dc.date.issued2020-12-11-
Data de envio: dc.date.issued2020-12-11-
Data de envio: dc.date.issued2020-05-01-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1007/s11250-019-02141-4-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/199695-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/199695-
Descrição: dc.descriptionConsidering the high temperatures that the tropical climate provides to most of Brazil and the effects of thermal stress on reproductive processes, the objective of the present study was to analyze, in the warmer months of 2016, conception rates of Nelore bovine embryos in Acre state. For this purpose, oocytes were aspirated (ultrasound-guided follicular aspiration), matured, fertilized with Nelore bull semen, cultured for 6 days, and then the embryos were transferred to crossbred recipients. Pregnancy diagnosis was performed 30 and 60 days after embryo transfer. Meteorological data were obtained at www.inmet.gov.br to generate temperature-humidity index (THI). The data from the conception rates and periods of the year were submitted to the chi-square test at 5% probability to verify independence. Regression analysis was used to verify the relationship between THI and gestation rate. There was a strong relationship between conception rates and THI values, verified by an increase in conception rates as THI values were reduced and a decrease when THI reached the highest value. Our findings demonstrated a negative effect of heat stress in conception rates of crossbred cows in northern Brazil.-
Descrição: dc.descriptionCenter for Biological and Nature Sciences Federal University of Acre, P.O. Box 69920900-
Descrição: dc.descriptionIn Vitro Acre, P.O. Box 69901218-
Descrição: dc.descriptionDepartment of Animal Reproduction and Veterinary Radiology School of Veterinary Medicine and Animal Science Paulista State University – UNESP, P.O. Box 18618681-
Descrição: dc.descriptionDepartment of Animal Reproduction and Veterinary Radiology School of Veterinary Medicine and Animal Science Paulista State University – UNESP, P.O. Box 18618681-
Formato: dc.format1527-1532-
Idioma: dc.languageen-
Relação: dc.relationTropical Animal Health and Production-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectBlastocyst-
Palavras-chave: dc.subjectIVP-
Palavras-chave: dc.subjectOocyte-
Palavras-chave: dc.subjectPregnancy rate-
Palavras-chave: dc.subjectTHI-
Título: dc.titleInfluence of temperature-humidity index on conception rate of Nelore embryos produced in vitro in northern Brazil-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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