Male dog won't breed

I just went through the same problem with our male that is around the same age. Same thing, we had never bred him. Great hog dog and I wanted to get pups out of him before something happened to him.

When I would put him in the pen with the female, he would spend a lot of time smelling where she had pee'd but never put much interest in trying to mount. The few times that he did go near the female, she would growl and that would be the end of his interest.

After several days of trying, with no success, I decided to try a new tactic.

Instead of putting him in the pen with the female, I brought her to him. He was more comfortable in his own territory. I had to lead her back and fourth in front of him, basically under his nose until he showed interest. Then I unclipped him from his chain and held her head. I don't know why but it worked.

Did this for three or four consecutive days and then 65 days later we got 10 pups! I hope this helps.

Oh and I forgot to mention that it was the last few days of her cycle. She was more receptive those last days.