Table 1.

Semen characteristics of individuals I1, I2 and I3 identified as displaying no SLC26A8 staining of the sperm annulus. Values were compared with the lower reference limits established by the World Health Organization [20]

Individual				Lower reference limits (WHO, 2010)
	I1	I2	I3
Age	40	38	35
Volume of ejaculate (ml)	6	2.4	1.4	1.5
pH	7.9	8.3	7.7	7.2
Total sperm count (106 /ejaculate)	186	76.8	182	39
Progressive motility, PR (%)	20	30	30	32
Viability (%)	59	79	75	58
Sperm morphology
Typical forms (%)	12	3	8	-
Flagellar abnormalities (%)	17	15	15	-