Rae's out of internet right now, but he mounts at least 3 times, if not 5 and breeds her, and they stay together for 24 hours give or take a little. she sticks her butt up and is ready, she's 2 1/2 right now. She's been with proven buck and unproven boys. The proven that she's been with had a litter with her sister(my girl), a couple of years ago, unless this is a different buck, not sure. I know she's got a black buck, a black otter buck, broken blue(he's just a baby though)and I think she alwo used a broken Blue that a friend of ours owns and still nothing. I offered to bring my blue boy over as well to let them breed, Eddy loves the ride.
I know Twix was proven out with Poppy, and she tried breeding Parkay with Twix and same thing happened, she was willing but didn't produce. I know she wasn't bred young, she was 9 or 10 months before she was bred the first time. It was too late into the fall to try and bred her the first time, I have a heated shed, whereas Rae didn't at the time. That's why Poppy was able to be bred on first heat cycle and Parkay wasn't.
Does that help any?