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Manipulation of Follicle Development to Ensure Optimal Oocyte Quality and Conception Rates in Cattle

Baruselli, PS ; Sá Filho, MF ; Ferreira, RM ; Sales, JNS ; Gimenes, LU ; Vieira, LM ; Mendanha, MF ; Bó, GA

Reproduction in domestic animals, 2012-08, Vol.47 (s4), p.134-141 [Periódico revisado por pares]

Oxford, UK: Blackwell Publishing Ltd

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Título:
Manipulation of Follicle Development to Ensure Optimal Oocyte Quality and Conception Rates in Cattle
Autor: Baruselli, PS ; Sá Filho, MF ; Ferreira, RM ; Sales, JNS ; Gimenes, LU ; Vieira, LM ; Mendanha, MF ; Bó, GA
Assuntos: Agricultural biotechnology ; animal ovaries ; Animal reproduction ; Animals ; artificial insemination ; Breeding of animals ; Cattle ; conception ; embryo transfer ; Female ; Fertility ; oocytes ; Oocytes - cytology ; Oocytes - physiology ; Ovarian Follicle - drug effects ; Ovarian Follicle - physiology ; ovulation ; Pregnancy ; pregnancy outcome ; progesterone ; Reproductive Techniques, Assisted - veterinary ; superovulation
É parte de: Reproduction in domestic animals, 2012-08, Vol.47 (s4), p.134-141
Notas: http://dx.doi.org/10.1111/j.1439-0531.2012.02067.x
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Descrição: 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.
Editor: Oxford, UK: Blackwell Publishing Ltd
Idioma: Inglês

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Manipulation of Follicle Development to Ensure Optimal Oocyte Quality and Conception Rates in Cattle

Baruselli, PS ; Sá Filho, MF ; Ferreira, RM ; Sales, JNS ; Gimenes, LU ; Vieira, LM ; Mendanha, MF ; Bó, GA

Oxford, UK: Blackwell Publishing Ltd

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