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Itens para a visualização no momento 11-20 of 22
Regulação epigenética no desenvolvimento embrionário inicial e reprogramação celular na clonagem por transferência nuclear
(Universidade Federal de Santa Maria, 2019-02-13)
Recent studies highlight the role of epigenetic changes during reproductive events, from the
formation of gametes to fertilization and early embryo development. In these processes, a dynamic
epigenetic regulation is ...
Peptídeos natriuréticos e angiotensina-(1-7) durante o processo de ovulação em bovinos
(Universidade Federal de Santa Maria, 2015-02-20)
Ovulation is controlled by a complex and dynamic interaction of factors, including endocrine and vasoactive mechanisms, cellular messengers and activating enzymes. It is well established that locally produced factors exert ...
Proteínas ligantes dos receptores de fatores de crescimento em complexo cumulus-oócito bovino
(Universidade Federal de Santa Maria, 2011-08-31)
The aim of this study was to characterize the Grb10 and Grb14 mRNA and protein
expression in COCs derived from follicles of different stages of development (1-3, 4-6, 6-8
and >8mm in diameter) and determinate the involvement ...
Diagnóstico e epidemiologia molecular de casos de raiva bovina na região central do Rio Grande do Sul
(Universidade Federal de Santa Maria, 2014-10-20)
Rabies is an infectious disease of the central nervous system caused by the rabies virus (RABV), which affects all mammals. In Brazil the rabies has caused considerable losses to cattle herds in various regions. The official ...
Estresse oxidativo em eritrócitos de bovinos intoxicados por Senecio sp.
(Universidade Federal de Santa Maria, 2006-02-10)
Intoxication caused by Senecio sp is characterized by irreversible damage to liver cells and may be associated with oxidative stress. The aim of this study was to
evaluate the effects of intoxication by Senecio sp on ...
Desenvolvimento de oócitos bovinos mantidos em líquido folicular
(Universidade Federal de Santa Maria, 2001-06-22)
To evaluate the effect of maintenance of bovine oocytes in follicular fluid (LF) for in vitro production of embryos, 1322 Complex Cumulus Oophorus (CCO's) obtained from abattoir bovine ovaries were distributed in two ...
Vitrificação de oócitos bovinos imaturos
(Universidade Federal de Santa Maria, 2002-02-22)
The development of reproductive biotechnology has been originating new challenges in many areas. In the cryobiology, the current challenge is to obtain an appropriate methodology for bovine oocyte cryopreservation, especially ...
Transporte de oócitos bovinos em meio de maturação sem controle de atmosfera gasosa
(Universidade Federal de Santa Maria, 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 ...
Angiotensina II no mecanismo inicial de ovulação, através dos receptores AT2, em bovinos
(Universidade Federal de Santa Maria, 2006-01-19)
The aim of this work was to investigate the role of angiotensin II (Ang II) in the mechanism of ovulation in the bovine, using an in vivo model, through the injection of the Ang II receptor antagonists in mature follicles. ...
Produção in vitro de embriões bovinos com cisteamina
(Universidade Federal de Santa Maria, 2006-02-21)
Advanced reproductive techniques use the 3 phase of in vitro production for bovine
embryos, i.e. in vitro maturation (IVM), in vitro fertilization (IVF) and in vitro culture (IVC)
as support for a variety of studies. ...