Effect of S. platensis on sperm morphological quality parameters in experimental HgCl2-exposed rats as compared to control group.

+Normal sperms were characterized with hook-shaped head and straight tail in control animals. Morphological abnormalities observed in HgCl2-exposed spermatozoa were absence of head, head winding around tail, coiled tails and kinks in midpiece and tail regions, bent and curved tail. Each values is the mean ± S.E., n = 8. Values marked with an asterisk (*) differ significantly from control value: **P2 group; Pab