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Mostrando ítems 11-20 de 146
Transporte de oócitos bovinos em meio de maturação sem controle de atmosfera gasosa
(Universidade Federal de Santa MariaBrasilMedicina VeterináriaUFSMPrograma de Pós-Graduação em Medicina VeterináriaCentro de Ciências Rurais, 2002-02-01)
Two experiments were designed to evaluate the effect of a simulated transport of oocytes to be used in bovine embryo production. Cumulus-oocytes complex -COCs - (n=1586) obtained from slaughterhouse ovaries were submitted ...
Influência do fator de crescimento semelhante à insulina I (IGF-I) adicionado ao meio fluido sintético de tuba uterina (SOF) sobre a maturação in vitro de oócitos caninos (Canis familiaris)
(Universidade Estadual de Londrina (UEL), 2007-07-01)
The follicular growth and oocyte maturation knowledge are very important to the development and improvement of new biotechnologies such as in vitro fertilization and somatic cell nuclear transfer. In order to the necessity ...
Influência do fator de crescimento semelhante à insulina I (IGF-I) adicionado ao meio fluido sintético de tuba uterina (SOF) sobre a maturação in vitro de oócitos caninos (Canis familiaris)
(Universidade Estadual de Londrina (UEL), 2007-07-01)
The follicular growth and oocyte maturation knowledge are very important to the development and improvement of new biotechnologies such as in vitro fertilization and somatic cell nuclear transfer. In order to the necessity ...
Developmental competence of domestic cat vitrified oocytes in 3D enriched culture conditions
(2019-06-01)
Cryoinjuries severely affect the competence of vitrified oocytes (VOs) to develop into embryos after warming. The use of culture conditions that provide physical and chemical support and resemble the in vivo microenvironment ...
Evidence for in vivo compartmentation of phenylalanyl-tRNA ligase in amphibian oocytes
(1980)
The in vivo activity of phenylalanyl-tRNA ligase of Xenopus laevis oocytes was assayed by measuring the esterification of microinjected yeast tRNAPhe with [14C]phenylalanine added to the extracellular medium. The three ...
Chemically induced enucleation of activated bovine oocytes: chromatin and microtubule organization and production of viable cytoplasts
(Cambridge Univ Press, 2015-12-01)
As the standard enucleation method in mammalian nuclear transfer is invasive and damaging to cytoplast spatial organization, alternative procedures have been developed over recent years. Among these techniques, chemically ...
Bovine embryo development produced by in vitro fertilization cultured with oviductal cell or conditioned medium and transfer to recipients
(UNIV AUSTRAL CHILE. FAC CIENCIAS VETERINARIAS, 1999)
Ovum pick-up interval in buffalo (Bubalus bubalis) managed under wetland conditions in Argentina: Effect on follicular population, oocyte recovery, and in vitro embryo development
(Elsevier Science, 2017-08)
The excellent adaptation of water buffalo (Bubalis bubalis) to swampy environments means that animals are frequently managed in areas with restricted access for reproductive procedures. The objective of this study was to ...
Extracellular vesicles of follicular fluid from heat-stressed cows modify the gene expression of in vitro-matured oocytes
(Elsevier B.V., 2019-06-01)
The effect of heat stress (HS) on cattle reproduction is deleterious with respect to ovarian follicular development and oocyte quality. The objective of this study was to investigate the effect of follicular fluid extracellular ...
Preimplantation development and expression of Hsp-70 and Bax genes in bovine blastocysts derived from oocytes matured in alpha-MEM supplemented with growth factors and synthetic macromolecules
(ELSEVIER SCIENCE INC, 2009)
In vitro culture conditions affect both the maternal and embryonic expression of genes and is likely to alter both oocyte and embryo developmental competence. The search for better and less variable culture conditions ...