The effects of dietary vitamin E and Se on boar sperm
testicular reserves at various stages of development are
presented in Table 1. The number of spermatids at 5.4
and 6.2 mo of age were numerically lower in boars fed
the low-Se diet than in those fed supplemental Se, but
the effect was not significant (P > .15). At 9 mo of age
there was a trend (P < .10) toward a higher number of
spermatids when Se-fortified diets were fed, and by 18
mo of age boars that were fed Se clearly had a higher