This presents some difficulties when knocking a horse out for surgery. The bigger they are, the harder they fall, and if they fall hard they might hurt themselves, which will upset the horse owner. They’re allso heavy, and if they lie on their side or back for too long they may squash their muscles and become temporarily lame, or just not breathe. This also upsets horse owners.
It can be scary when a horse goes down for an anaesthetic if you don’t know what to expect, so we got to see several horses being knocked out with different anaesthetics. I made a video for you if you want to see. Be warned, the 3rd horse was a bit of a surprise!