Motility characteristics of spermatozoa before attachment and after detachment from uterine epithelium.

<p>Sperm samples diluted in M199 were incubated with uterine epithelial explants from bitches in proestrus and oestrus [pre-ovulation]. Data are mean percentage (± S.E.M.) motility characteristics (NM; non-motile, FFPM; fast forward progressive motility, TM; transitional motility, HM; hyperactive motility) at 0 hours for controls (not incubated with explants) and over 4.0–4.5 hours for detaching spermatozoa. Comparisons are individual motility characteristics between treatments; means with a letter in common are not significantly different p<0.05.