Table 2.

Discriminant classification matrix showing Fisher’s linear discriminant functions.

	Coefficient of Function of Classification
	High Fertility	Low Fertility
IADM	−4.907	−5.268
Head width of IAIM (µm)	111.692	96.572
Acrosome perimeter of IAIM (µm)	187.255	195.212
Constant	−1974.853	−2035.336

Values obtained by linear stepwise discriminant analysis. IADM: spermatozoa with an intact acrosome and a damaged plasma membrane; IAIM: spermatozoa with an intact acrosome and plasma membrane. The sperm subpopulations were obtained using the ISAS3Fun fluorescence method.