diminished sperm production ( reduced testicular sperm head counts ) , decreased cauda epididymal sperm reserves , nonmotile spermatozoa , atypical sperm morphology , decreased weights of the testes and epididymides , seminiferous tubular atrophy , and incomplete spermatogenesis were also observed in these groups .
C0037844
sperm head
C0037868
spermatozoa