for combined groups , mean testis se concentration ( 0.33 ppm ) , testes weights , seminiferous tubule measurements and percent of tubules ( 82.2 ) containing luminal spermatozoa were greatest ( p < 0.05 ) at 180 days of age , and mean testis se concentrations were significantly correlated with these testicular parameters .
C0036630
seminiferous tubule
C0039597
testis