Originally Posted by
S_B
Maurice,
I have recently run into the same issue with my studs due to never breeding until late in their lives. What has worked for me is Vitamin E or Wheat Germ oil (pure), Tribulius a very low dose of Saw Palmetto (I do every other day) and a good quality joint supplement preferably with Perna Mussel.
Also twice a year I run them on Doxycycline for 21 days to clear out any infections.
And the most important is a good quality feed and good overall health otherwise you could be wasting money.
I just AI'd an 8 year old male doing the above and had a litter of 6 healthy all male pups. As far as which ups your chances. I'd say surgically AI would yield the best results. Or breed naturally or AI to a proven producing bitch.
Good luck,
S_B