Evaluation of the Efficiency of Two Different Freezing Media and Two Different Protocols to Preserve Human Spermatozoa from Cryoinjury

Table 2

Progressive motility values and % change before and after semen samples cryopreservation using two different freezing protocols and two different FM.

Progressive motility (%)	⁢Group A (sperm washing protocol)		⁢Group B (direct freezing protocol)		value
	TYB	SF	TYB	SF
Before	⁢39.10 ± 13.58		⁢41.08 ± 14.2
After	18.41 ± 1.03	13.99 ± 0.87	16.63 ± 1.67	13.38 ± 1.46
% change	52.19 ± 2.76	63.81 ± 2.37	58.44 ± 3.82	65.97 ± 3.66	<0.001	0.0114	NS	NS

Note: values are mean ± SEM. TYB, TEST Yolk Buffer; SF, Sperm Freeze.
, paired -test for TYB versus SF in group A.
, paired -test for TYB versus SF in group B.
, unpaired -test for TYB washed versus TYB not washed.
, unpaired -test for SF washed versus SF not washed.