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Transcriptional profiling of embryo cryotolerance
(2020-12-01)
The cryosurvival of embryos is a complex process involving dynamic and integrated morphological, functional, and molecular changes. Here, we evaluated the transcriptional profiling of bovine embryos possessing high and low ...
In vitro production of bovine embryos: Cumulus/granulosa cell gene expression patterns point to early atresia as beneficial for oocyte competence
(2017-01-01)
In vitro production (IVP) of bovine embryos has become widespread technology implemented in cattle breeding and production. Here, we review novel data on cumulus/granulosa cell gene expression, as determined by RNAseq on ...
Cellular alterations induced by heat stress in bovine embryosAlterações celulares induzidas pelo estresse térmico em embriões bovines
(2013-01-01)
Adverse environmental conditions such as high temperature and humidity increase internal body temperature (hyperthermia) of lactating dairy cows resulting in heat stress and decreased pregnancy rates. Embryonic susceptibility ...
Heat stress induced alteration in bovine oocytes: functional and cellular aspects
(2012)
High environmental temperatures observed during the hot months of the year reduce fertility in lactating dairy cows. Summer heat stress depression in fertility is a multifactorial problem that affects physiological and ...
Acumulação de competência tecnológicas e performance operacional em operadoras de telefonia celular
(2001)
Esta dissertação apresenta um estudo de caso comparativo entre duas empresas operadoras de telefonia celular, onde são analisadas a acumulação de competências tecnológicas dessas empresas e a sua implicação para a performance ...