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metadata.artigo.dc.title: Manipulation of follicle development to ensure optimal oocyte quality and conception rates in cattle
metadata.artigo.dc.creator: Baruselli, P. S.
Sá Filho, M. F.
Ferreira, R. M.
Sales, J. N. S.
Gimenes, L. U.
Vieira, L. M.
Mendanha, M. F.
Bó, G. A.
metadata.artigo.dc.subject: Cattle - Conception rates
Artificial insemination
Cattle - Superovulation
Ovarian follicular growth
Bovinos - Taxas de concepção
Inseminação artificial
Bovinos - Superovulação
Crescimento folicular ovariano
metadata.artigo.dc.publisher: Blackwell Verlag GmbH Aug-2012
metadata.artigo.dc.identifier.citation: BARUSELLI, P. S. et al. Manipulation of follicle development to ensure optimal oocyte quality and conception rates in cattle. Reproduction in Domestic Animals, Berlin, v. 47, n. s4, p. 134-141, Aug. 2012.
metadata.artigo.dc.description.abstract: Over the last several decades, a number of therapies have been developed that manipulate ovarian follicle growth to improve oocyte quality and conception rates in cattle. Various strategies have been proposed to improve the responses to reproductive biotechnologies following timed artificial insemination (TAI), superovulation (SOV) or ovum pickup (OPU) programmes. During TAI protocols, final follicular growth and size of the ovulatory follicle are key factors that may significantly influence oocyte quality, ovulation, the uterine environment and consequently pregnancy outcomes. Progesterone concentrations during SOV protocols influence follicular growth, oocyte quality and embryo quality; therefore, several adjustments to SOV protocols have been proposed depending on the animal category and breed. In addition, the success of in vitro embryo production is directly related to the number and quality of cumulus oocyte complexes harvested by OPU. Control of follicle development has a significant impact on the OPU outcome. This article discusses a number of key points related to the manipulation of ovarian follicular growth to maximize oocyte quality and improve conception rates following TAI and embryo transfer of in vivo‐ and in vitro‐derived embryos in cattle.
metadata.artigo.dc.language: en_US
Appears in Collections:DMV - Artigos publicados em periódicos

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