Anita,

We recently prepared slides of two week old zebras.  They were about as
small as a fish can be!  We fixed them in 4% paraform. for 24 hours.  Then
we processed them on our regular processing schedule.  Paraffin embedded
them (saggitally as per request from client).  Microtomed them at 4
microns -12 step sections throughout to achieve most vital organs.  H+E
stained on regular schedule and PRESTO- they were beautiful.  Hope this
helps.

Sincerely,

Tom Galati
Histo-Scientific Research Labs.
P.O. Box 30
107 Killmon Road
Basye, VA  22810
(540)856-2222
histosci@shentel.net