Comparison of the relative intensity of most dispersed ions after mass spectrometry (MALDI-TOF) analyses, of oocytes from different maturation systems.

The 760.6 ion corresponds to [PC (34:1) + H] + and 782.6 to [PC (34:6) + H] + or [PC (34:1) + Na], both phosphatidylcholines (PC).ab Different letters in the same column indicates statically differences among the treatments after ANOVA according to Tukey’s test (PCONT = oocytes from slaughterhouse ovaries and matured in vitro; IMA = OPU oocytes from non-stimulated animals and matured in vitro; FSH = OPU oocytes from FSH simulated animal and matured in vitro; MII = OPU oocytes after in vivo maturation.The data are expressed as arbitrary unit intensity and standard deviation (±SD), and each ion represents a different phospholipid.