well...this dudes days of the "wild life" are numbered apparently, so I'd start studying the "procedure" and gathering the supplies...
sharp cutting tools, from a vet or feed store made to cut flesh, styptic and the right antibiotic cream or gel, whatever is advised. Have a hospital pen set up for the first couple days to monitor and give the "wound" a chance to start healing. Does it need to be stitched completely closed? or partially? Things to find out in the next week or so...
I've seen cats and dogs with big surgical wounds that ripped open that healed on their own.
Its not a big deal to the animal as I said earlier. Humans equate this to an equally opposite sensation as it is pleasurable to us. To the animal it is NOT that way at all. Animals do not "mate" for pleasure. There is none. Its strictly to reproduce based on instinct.
Farm animals are castrated on farms everyday and let loose to roam. Its still un-nerving to say the least, (especially to many men for some reason) but seeing a drake drag his "stuff" across a concrete sidewalk kinda stings too !
Help the guy out...He'll thank you later. Might be much later...but he'll be grateful.
Is he too old to go thru a name change??????
How does "Porn-Star" sound as a duck name?
Good luck with your drake and his 'problem' that seems to
follow him around everywhere...