Table 1

Table 1. Sperm recovery rates (%) and motility grades A and B (%) determined after selection by three semen processing techniques: migration-sedimentation (SS), swim-up from fresh sample (SF), and swim-up from washed sample (SL), expressed as mean ± SEM.
Parameters	Fresh semen	SF	SL	SS
Concentrations (10⁶/ml)	77.0 ± 4.3	10.0 ± 15.2	5.0 ± 6.7 ^a	22.5 ± 33.7 ^a
Recovery rates (%)	10.1 ± 2.4	5.4 ± 0.9 ^a	25.0 ± 5.7 ^a
Motility grades
A+B (%)	77.0 ± 11.0	91.2 ± 2.0 ^a	77.0 ± 2.8 ^a,b	93.6 ± 1.4 ^b
Progressive, A (%)	80.5 ± 2.4 ^a	57.6 ± 4.4 ^a,b	85.6 ± 2.5 ^b
Non-progressive, B (%)	10.7 ± 1.4 ^a	19.1 ± 3.2 ^a,b	8.0 ± 1.5 ^b
^a,b: statistically different (P< 0.01) Numbers without or with different superscripts are not statistically different. Data were compared using ANOVA and Tukey’s test.