I did basically the same thing, and it didn’t work with my dog.I had a Rottweiler and he was a cat killer. Otherwise a very trustworthy dog but I was going through barn cats fast between yotes, owls, and my Rott. I brought home 3 kittens and made an outdoor shelter to let them get bigger before they got out and roamed. One day I came home and my Rott had killed one that had gotten out. I took some duct tape and taped the dead cat under his chin around the neck and made him wear that all day in the summer heat. By the end of the day he had clawed at that cat trying to get it off to the point the cats head was clawed off. I removed the tape and the cat and from that day forward, if a cat got within 10' of my Rott, he got up and moved away. The same dog used to chew water hoses into short pieces. I took a 2' piece, put it crossways in his mouth and taped him muzzle shut where he could still breath of course, 20 minutes later I removed it after watching him trying so hard to get it out of his mouth. I think removing the tape was the worst part for him but he never chewed another hose.
Works with chickens also.