22. SALISBURY, G. W., AND F, H, FLERCHINGER, Aging phenomena in
spermatozoa. 1l. Estrous cycle length after unsuccessful
insemination with spermatozoa of varying age. J. Dairy Sci.,
50: 1679-1682. 1967.

23, SALISBURY, G. W., J. R, LODGE, AND F, N, BAKER, Effects of age
of stain, hydrolysis time, and freezing of the cells on the
Feulgen-DNA content of bovine spermatozoa. Js¥DaiinyiScis ,
47: 165-168, 1964,

24, TODOROVIC, R, A., C., N. GRAVES, AND G, W, SALISBURY. Aging
phenomena in spermatozoa. IV. Immunoserologic characteri-
zation of the DNA-protein extracted from fresh and aged bo-
vine spermatozoa. J. Reprod. Fert. (in press)

1200