Our Buck Goat

We bought a registered Saanen buck, as a kid, a year and a half ago. Last fall we tried to use him to breed to our Saanen does, but he seemed a little small and we were not quite sure if he could breed the taller does. Well...long story short, we had no Saanen kids born this year. Now, he is bigger and has bred the does, but they keep cycling and coming back into heat. So, this weekend we are going to have his semen collected and evaluated by an experienced...umm...I have no idea what his title would be. Anyway, he knows what he is doing, looking for, etc. We need to know if the buck is fertile. They say a buck is half of your herd, and I believe that is a true statement. And, a scary one if your buck is not fertile! I will have an update on this in the near future.