Sexing castrated males

Question
I'm currently working with some young castrated males and trying to demonstrate to students how to sex males from females. It's going fine except we seem to be having problems finding the penis in the castrated males. To the point that the only way we could determine them from the females was that they still had their sutures in from their castration. Do you have any idea as to why this may be? I am unsure on how young they are exactly, I would think at least 4 months old. Could the decrease in testosterone have an influence on their development?

Answer
Hello Bec,

The males should still have a normal penis whether castrated or not.  The doe will have a slit an the buck with have a round opening.  If you push to hard on the opening it can cause the doe to protrude a bit but unless the buck has a split penis it should be a normal penis protruding.  You can try these sites to look at photos that may help:

http://www.bio.miami.edu/hare/sexing.html

I hope this helped.

Pam