Don't have a vet? Check out VET RESOURCES
The subject of intentional breeding or meat rabbits is prohibited. The answers provided on this board are for general guideline purposes only. The information is not intended to diagnose or treat your pet. It is your responsibility to assess the information being given and seek professional advice/second opinion from your veterinarian and/or qualified behaviorist.
LEADERS: Bam BinkyBunny JerseyGirl LBJ10 LittlePuffyTail LongEaredLions RabbitPam
EDITED: I am sleepy! And I read your post wrong. I thought you said that the vet wasn't sure if Sable was a boy. Well, then I said, if the vet doesn't know then the vet isn't rabbit savvy enough. SORRY. It's getting late, and my eyes are booglyboggly.
Good Luck with the search!
I'll keep my eyes peeled for update info from you.
I'm also looking into the heart rate question.