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Produção in vitro de embriões bovinos com soro de égua em estro
(Universidade Federal de Santa Maria, 2001-03-16)
As a pre-experiment, the viability of mare´s serum was tested for IVP of bovine embryos. Nine hundred and eighty three oocytes were divided into two treatments: T1 using mare´s serum (MS) and C, the control group, using ...
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 ...
Influência do estresse nutricional e do marcador molecular BMS3004 na indução da ovulação pós-parto em vacas de corte
(Universidade Federal de Santa Maria, 2002-02-20)
The objective of the first experiment was to compare the efficiency of a hormonal protocol, associated to the temporary weaning for 96 hours, with the definitive weaning at 60 days for induction of estrus and ovulation, ...
Congelamento ultra-rápido de embriões bovinos com etilenoglicol e trealose
(Universidade Federal de Santa Maria, 2001-03-16)
Embryo cryopreservation is a procedure widely employed in the domestic animal assisted reproduction and is highly representative in the bovine species, as seen in North America were over 40% of collected embryos are frozen ...
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. ...
O fungo Duddingtonia flagrans: controle biológico de nematodeos parasitas de bovinos à campo
(Universidade Federal de Santa Maria, 2006-05-16)
The biological control is an alternative method to reduce the population of parasites by
the use of natural antagonist. In the present study, the efficacy of nematophagous fungus
Duddingtonia flagrans was tested to control ...
Atividade acaricida de siloxano organo-modificado e associações acaricidas em Rhipicephalus microplus
(Universidade Federal de Santa Maria, 2021-02-26)
Rhipicephalus microplus, is known worldwide for causing great losses in cattle farming. Through its
blood-sucking habit, it causes damage to its host, ranging from productive losses to the transmission of
diseases. The ...
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. ...
Influência do estresse térmico na secreção de interferon tau por embriões bovinos produzidos in vitro: alteração na expressão gênica em células luteais
(Universidade Federal de Santa Maria, 2023-03-09)
Among the main factors that directly affect the efficiency and profitability of the
ruminant production chain is the influence of the environment, genetics and animal health.
The reduction in conception rates during hot ...