Table I.

Oocyte selection by the BCB test

Method of definition	Parameters
	No. of oocytes	Each group %
BCB+	616	56.34±6.32
BCB-	474	43.66±6.32

Note: Data expressed as mean ± SE

Mean Standard Error of Group: 0.08

BCB: Brilliant cresyl blue

BCB⁺: Oocytes with a blue cytoplasm

BCB^-: Oocytes without a blue cytoplasm