Sony Dimas Bicudo

• Abstract

  The aims of this project were: to determine sperm subpopulations (ES) by four methodological criteria (MC) through computer-assisted semen analysis (CASA) of sperm kinetics (MC1 - five ES), to access plasma membrane integrity (MC2) and acrosome reaction (four ES); to quantify the percentage of apoptotic sperm (MC3 - four ES) and sperm undergoing capacitation (MC4) (membrane stability and …

  Proposal of criteria for the establishment of the profile of sperm subpopulations as qualitative standard for cryopreserved ram semen aiming assisted reproduction, AP.R

• Abstract

  The majority of COCs for in vitro embryo production (PIV) has not yet completed its development and, therefore, does not have adequate mRNAs and proteins stock essential to support the later development stages. In this context, the temporary maintenance of the oocyte at germinal vesicle stage with meiosis inhibitors is a strategy to increase the in vitro development potential of oocytes a…

  Gene expression and in vitro developmental potential of sheep cumulus-oocyte complexes treated with roscovitine, AP.R

• Abstract

  The goal is study in Santa Ines lambs of 20-24 weeks of age in homozygous for FecGE gene, onset of puberty, follicular growth, ovulation and luteal activity after treatment with progesterone. In the first experiment, initially be detected in the absence of cyclicity of prepubertal lambs. Subsequently, the lambs will be divided into three groups of 6 animals (G1, G2 and G3). The first grou…

  FecGE GENE IN ONSET OF PUBERTY, FOLLICULAR GROWTH, OVULATION AND LUTEAL ACTIVITY AFTER TREATMENT WITH PROGESTAGENOS IN EWE LAMBS, AP.R

• Abstract

  The aim of this project is to study the temporary suppression of ovarian follicular growth in adult wooless ewes using continuous release implant of deslorelin (9.4 mg). Will comprise four groups depending on the permanence of the implant device and one control. The experiment will be divided into three steps: First, after an adjustment period the sheep of all groups and measure the dynam…

  Temporary suppression of ovarian follicular growth in sheep by use of implants for continuous release of deslorelin, BP.MS

• Abstract

  The majority of COCs for in vitro embryo production (PIV) has not yet completed its development and, therefore, does not have adequate mRNAs and proteins stock essential to support the later development stages. In this context, the temporary maintenance of the oocyte at germinal vesicle stage with meiosis inhibitors is a strategy to increase the in vitro development potential of oocytes a…

  Gene expression and in vitro developmental potential of sheep cumulus-oocyte complexes treated with roscovitine, BP.DR

• Abstract

  The aims of this project were: to determine sperm subpopulations (ES) by four methodological criteria (MC) through computer-assisted semen analysis (CASA) of sperm kinetics (MC1 - five ES), to access plasma membrane integrity (MC2) and acrosome reaction (four ES); to quantify the percentage of apoptotic sperm (MC3 - four ES) and sperm undergoing capacitation (MC4) (membrane stability and …

  Proposal of criteria for the establishment of the profile of sperm subpopulations as qualitative standard for cryopreserved ram semen aiming assisted reproduction, BP.PD

(Only some records are available in English at this moment)

• Abstract

  Meiosis inhibitors such as roscovitine have been used in different animal species with the aim of increasing the in vitro development potential of oocytes and embryos. Studies have shown, however, the culture conditions during the in vitro embryo production predispose the abnormal DNA methylation. So, this research aims to analyze the possible epigenetic changes in terms of citosine methy…

  Gene expression and epigenetic changes during the meiotic inhibition of sheep oocytes, BE.EP.DR