Composting has been shown has a viable means of disposing of dead livestock, horses and birds. ... Once you've placed a carcass (might want to puncture the rumen on cattle to avoid a gas buildup and possible explosion), cover it with at least 2 feet of the same manure and bedding mixture that is underneath the carcass. read more
So, even non-meat animals like dairy cattle, laying hens, etc usually enter the processing system, if the animal is healthy they will become things like soup or hamburger that don't require tender meat, if they are unhealthy, they will go to be"rendered" for things like pet food, fertilizer, some plastics, and other products. read more
Properly composting animal carcasses may be less of a threat to groundwater than burial or unattended surface dumping. Composting has been shown has a viable means of disposing of dead livestock, horses and birds. read more