Sperm parameters were studied as per WHO laboratory
manual (WHO, 1987). Sperm count: Using haemocytometer.
Motility—percentage ofmotile sperm with time and speed ofmotility
of individual sperm was also assessed. The speed of motility
was graded semiquantitatively on a scale of 0–5 and the spermatozoa
were evaluated for the rate of forward movement and
graded accordingly: 0 = no movement, 1 = sluggish or tail movement
alone, 2 = intermittent sluggish movement, 3–4 = fair and
good movement and 5 =maximum movement in forward direction.