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No. Donkeys should not eat horse chestnuts or sweet chestnuts. Horse chestnuts are considered toxic to horses and donkeys, including their seeds, leaves, and bark. Sweet chestnuts, on the other hand, are a seasonal treat for us, but far too high in starch for donkeys. In autumn, this means picking up chestnuts from pastures and paddocks regularly.
Why chestnuts are unsuitable for donkeys
Donkeys come from barren regions. Their digestive system is adapted to high-fiber, low-energy, low-sugar feed: straw, high-structure hay, and lean pasture. Donkeys are not small horses. They make very good use of sparse feed and quickly gain weight on abundant feed.
With chestnuts, several problems come together:
- Horse chestnuts contain substances that are considered toxic to equines. This applies to the seeds, but also to the leaves, bark, and young shoots. How strongly an animal reacts depends on the quantity and the individual case. A risk you do not have to take.
- Sweet chestnuts are not toxic in the same way, but contain a lot of starch. Too much starch and sugar promotes obesity and is considered a major risk for laminitis in donkeys. Malnutrition can also promote colic.
- The shape: Chestnuts are round, smooth, and hard. If eaten hastily, they can cause choking.
Horse chestnut or sweet chestnut? How to tell them apart
For your donkey, the distinction ultimately does not matter: neither belongs in the feed. It still helps when checking the pasture, because then you know which trees are nearby and what falls down in autumn.
| Feature | Horse chestnut | Sweet chestnut (marron) |
|---|---|---|
| Leaves | palmate, five to seven leaflets on one stem | separate, elongated, coarsely serrated at the edge |
| Husk | green, with a few short, rather blunt spikes | densely covered with many fine, sharp spikes |
| Nut | rounded, shiny brown, without a point | rather flat, with a small point at the top end |
| For donkeys | considered toxic | very high in starch, unsuitable |
Autumn check: How to secure the pasture and paddock
Chestnuts usually fall in September and October. That is exactly when grass becomes scarcer on many pastures, and donkeys search more thoroughly for anything that can be eaten. A few solid routines help:
- Check if chestnut trees are on, in, or above the pasture, also on the neighboring property. Branches that reach over the fence are enough.
- Regularly pick up fallen fruit, husks, and leaves, and try to do so daily during the falling season.
- Fence off the area under the tree if picking up does not work reliably.
- Do not use chestnut leaves as bedding or branches as chewing material.
- Please ask children and visitors not to throw collected chestnuts over the fence. Chestnuts are a popular souvenir after an autumn walk.
By the way: never feed strange donkeys on pastures or farms without the owner's permission. Even a seemingly harmless handful can be tricky for an animal with a history. That is why many farms hang up a sign saying "Please do not feed".
What to do if your donkey has eaten chestnuts after all?
Stay calm, but look closely. Note down what was approximately eaten – horse or sweet chestnut, fruit, leaves, or bark – and when. Remove everything that is still accessible. Watch your donkey carefully: Is he eating as usual, passing stool, behaving as usual?
In the case of horse chestnuts or if anything seems unusual to you, call your veterinarian and describe the situation. Do not give home remedies or medications on your own.
What belongs in the trough in autumn instead
What donkeys need in autumn is unspectacular: sufficient straw, supplementary high-structure hay, and fresh water. What the basic feed looks like in detail, you can read in Donkey Feed: Hay or Straw?. If you want to reward, a small piece of apple is often enough – more on this in Can Donkeys Eat Apples?. Which autumn fruit is also taboo, you will find out in the Plums. You can find the complete overview here: What Donkeys Are Allowed to Eat: the Complete Feed List.
Frequently Asked Questions
Can donkeys eat chestnut leaves?
No. For the horse chestnut, leaves, bark, and shoots are also considered toxic to equines. Therefore, neither leaves nor branches belong on the pasture nor in the bedding.
Are cooked or roasted marrons okay?
No. Cooking or roasting does not change the fact that marrons are very high in starch. They are not suitable feed for donkeys, not even as a treat.
Can donkeys eat acorns?
No. Acorns are also considered unsuitable for horses and donkeys because they contain many tannins. Pick them up in autumn just like chestnuts.
How many chestnuts are dangerous?
There is no safe quantity, and how an animal reacts is individual. That is why the rule is simply: no chestnuts at all. If your donkey has eaten some, speak to your veterinarian.
This post provides general guidance on feeding donkeys. If you have questions about your animal, or in case of pre-existing conditions or unusual symptoms, please contact your veterinarian.
Would you like to do something good for donkeys without keeping one yourself? With a donkey sponsorship, you support donkey farms in Germany. And anyone curious about the food that we stand for as DON DONKEY'S® can find our donkey milk here.
