Figure 3. Relative abundance of transcripts from different genes of in vitro-matured bovine oocytes derived from different donors, collected by means of OPU (IN VITRO-OPU) or by post-mortem follicular aspiration (IN VITRO-Abattoir). Transcript level of IN VITRO-OPU oocytes was used as calibrator (relative abundance = 1.00). Data are show as mean ± SEM. (*) Asterisk indicates difference between IN VITRO-OPU and IN VITRO–Abattoir groups (p<0.05)