A dead horse, donkey or cow on your Wisconsin land falls under Wis. Stat. § 95.50, which treats the body as a carcass and puts the duty on both the animal’s owner and whoever owns or controls the land. The statute allows 24 hours from April to November, or 48 hours from December to March, before a carcass left open to dogs or wild animals breaks the rule. Cover it or get it under a roof first, then choose between rendering, burial, burning, landfilling or composting with your veterinarian.
Does Wisconsin treat a dead horse or donkey as a carcass?
Yes. Chapter 95 of the Wisconsin Statutes counts any member of a species domesticated by humans as a domestic animal. Section 95.50 then defines a carcass as the dead body of a livestock animal or other domestic animal. That places a horse, donkey, cow or goat that dies in your pasture or barn under the same section as any other farm animal, even on a hobby lot with one animal.
The section names two people, and either can be on the hook. Under § 95.50(3), a person who owns or controls the carcass, or who owns or controls the land it lies on, may not leave it exposed to dogs or wild animals once they know or reasonably should know it is exposed. If your horse is boarded on someone else’s land, talk with the landowner right away about who is covering and moving it.
How long can the body stay where it fell?
Wis. Stat. § 95.50(3) sets the limit at 24 hours during April to November and 48 hours during December to March, counted from when you know or reasonably should know the body is exposed to dogs or wild animals. Covering it closely or moving it into a closed building handles the exposure while you sort out disposal.
A tarp pinned down at every edge, a shut barn or a covered trailer keeps dogs, coyotes and birds off the body. Do not drag a large animal toward a ditch or a stream to make it easier to reach. The statute also closes one door outright, because § 95.50(2)(b) bars disposing of a carcass in the waters of the state, so a creek, pond or lake on your land is never the answer.
What disposal options does DATCP describe?
The Wisconsin Department of Agriculture, Trade and Consumer Protection (DATCP) lists rendering, burial, burning and landfilling as the usual methods and says all of them are becoming less practical. It calls rendering the best choice for the environment, public health and animal health, while noting that rendering is getting more expensive and harder to find.
- Rendering. A business that collects dead animals for a renderer must hold an annual DATCP license under Wis. Stat. § 95.72(2)(a). DATCP’s Meat Safety page links its lists of rendering companies and dead animal collectors, so you can check a company against them before it collects the body.
- Burial and burning. DATCP says burial and burning both create biosecurity hazards and threats to water and air quality.
- Leaving it in place. DATCP also warns that a carcass left to rot may contaminate water sources, including your own well and your neighbors’ wells.
- Composting. UW-Madison Extension calls on-farm composting an approved method for livestock mortalities.
Extension’s siting advice puts a compost pile at least 3 feet above a high water table and at least 300 feet from streams, ponds or lakes in the same drainage area. That is guidance for siting a compost pile, and it is not a burial standard. For smaller animals, the Wisconsin disposal guide covers trash, burial and the other everyday options.
Can you bury a horse or donkey on your own land?
Burial is one of the methods DATCP describes, and it is also one of the two it says create biosecurity hazards and threats to water and air quality. None of the sources used for this article give a burial depth or a distance to keep from a well, a property line or open water, and local rules can apply.
Before you rent an excavator, ask your veterinarian whether burial suits how the animal died, and call your town or county office about any local limits. Pick a spot well away from your well, because a buried or rotting body is exactly what DATCP links to contaminated wells.
Does it matter if a veterinarian put the animal down?
Yes. The U.S. Fish and Wildlife Service says the drugs used for a quick and humane end of life linger in the body and can kill scavenging wildlife and domestic animals. An uncovered body that still holds those drugs puts every scavenger that feeds on it at risk, including farm dogs and pets from next door.
The same agency says that if frozen ground prevents immediate burial, the carcass must be covered or stored so scavengers cannot get to it. In a Wisconsin winter that sits alongside the 48-hour limit in § 95.50(3) for December to March, so plan the cover before the ground freezes. Tell your veterinarian you are deciding between rendering, burial and composting, and ask which one fits an animal that was euthanized with drugs.
What if you do not know why the animal died?
Call your veterinarian before the body is buried or picked up, because a test has to happen first. The Wisconsin Veterinary Diagnostic Laboratory accepts submissions from veterinarians, and an individual horse or cattle owner is not one of the groups on its list. That means a necropsy is arranged through your vet rather than by you directly.
DATCP says skunks and bats are the animals most likely to carry rabies in Wisconsin, although rabies has also occurred sporadically in livestock. If the animal had contact with a skunk, a bat or another wild animal, or acted strangely before it died, raise rabies with your veterinarian before anyone handles the head or the body.