Document Detail


Manipulation of follicle development to ensure optimal oocyte quality and conception rates in cattle.
MedLine Citation:
PMID:  22827362     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
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.
Authors:
Ps Baruselli; Mf Sá Filho; Rm Ferreira; Jns Sales; Lu Gimenes; Lm Vieira; Mf Mendanha; Ga Bó
Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Reproduction in domestic animals = Zuchthygiene     Volume:  47 Suppl 4     ISSN:  1439-0531     ISO Abbreviation:  Reprod. Domest. Anim.     Publication Date:  2012 Aug 
Date Detail:
Created Date:  2012-07-25     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9015668     Medline TA:  Reprod Domest Anim     Country:  Germany    
Other Details:
Languages:  eng     Pagination:  134-41     Citation Subset:  IM    
Copyright Information:
© 2012 Blackwell Verlag GmbH.
Affiliation:
Departamento de Reprodução Animal da Faculdade de Medicina Veterinária e Zootecnia da Universidade de São Paulo, São Paulo, SP, 05508-000 Brazil Universidade Federal da Paraíba, Areia, Paraíba, Brazil Instituto de Reproducción Animal Cordoba (IRAC), Córdoba, Argentina.
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