I am borrowing a buck from my friend to breed my doe izzy. I was wondering how long you guys think I should keep him? I though about 6 weeks.. Approximately 2 heat cycles hopefully. Izzy is mostly a silent heat girl.. (I think she goes into heat when she was ramming her pen and stuff) I plan on getting him on the 19th of October and I have been told I can keep him for as long as necessary.. What do you all think?