is a younger rooster better than an older rooster for breeding purposes?

[MrViskers]

my current rooster who was hatched December 2010 has not been making the eggs fertile and seems to be less interested in mating shoul i replace with a younger rooster?

 

[Fred's Hens]

I much prefer a 2 or 3 year old rooster. Not a big fan of the over-zealous, incompetent young ones. That said, you may a dud, but you've have to carefully check the eggs to be sure they are infertile. If they are? Yes, you'll have to get another bird, if you wish to breed.