At that age they basically look like a dot or a dash. I can usually tell by
then but have known to be wrong LOL. I entered a really nice broken
castor "doe" and it turned out to be a buck in the last show. I never checked
it after I made the initial assessment. OOPS.
An old time breeder also told me that baby kits that urinate in a strong
stream when you pick them up are bucks and dribblers are does. It seems
to be true as far as I can tell.
Roger