The government has a guide on how to 'obliterate' horse carcasses with explosives

I'd be willing to try it, I don't have the Horses as Pets idea many people do, I actually dislike horses, but that is a story for another time. Horses have a lot of meat like a Moose.

MSgt Dale Johnson - If you are good at butchering a carcass, a little more than 70% of a horse live weight is fit for human consumption. I personally don't care for the organ meats, so I cook them up for the farm dogs.

My experience, horse meat has its own distinct flavor. It is gamier than beef, but not as gamey as venison. Surprisingly, its relatively tender compared to similar cuts from beef cattle. Unfortunately, if the animal is in distress when it is put down, the adrenaline tends to toughen the meat and dilute the flavor.

When we had to put down our larger 700lb pony, I put about 450lbs of meat in the fridge. She was older so most of the meat went into sausage (with pork suet), cured meats, and jerky.

Agreed . . .