Welcome to BackYard Chickens ! And a Big Hello from Eastern Nebraska.
Follow along with the video below to see how to install our site as a web app on your home screen.
Note: This feature may not be available in some browsers.
I saw that thread too.I finally found an older thread with a description and photos:
https://www.backyardchickens.com/threads/how-to-caponize-a-rooster-warning-graphic-pics.210041/
Intreating research, thank you for putting so much time into this post.Probably, but someone who is good will also be fast, so at least it doesn't take long.
And of course caponizing was developed long before anesthetic was invented, just like castrating of cattle and pigs and sheep and so forth-- all of those were traditionally done without anesthetic too. (Caponizing has apparently been around for more than 2000 years!)
A search for "capon" in the meat birds section of the forum turns up some threads, such as this one:
https://www.backyardchickens.com/threads/capon-vs-roo-side-by-side-comparison.1448991/
I don't see a description of the actual process, but @PurpleCArTires might be a good person to ask.