I don't plan on breeding to sell. I just have them for eggs. And I may have to get rid of my roo soon; as one of my neighbors is complaining and posting signs on the mailbox about noise ordinances and such. We are allowed chickens. Roosters if we have 20,000 sq ft. I have about 15,000 sq ft. So if the county comes knocking, i have to give up my man.
There is an ant--crowing collar. It reduces the force that a roo can put into his crow. I haven't used it but I saw a video on the difference it makes. It at least halves the volume.
Here is their link on Facebook; https://www.facebook.com/RoosterCollars