Can Chickens Eat It? Food Checker

Quick answer: most fresh fruit, vegetable and grain scraps are fine as a treat, and treats should be no more than 10% of what the flock eats in a day — roughly 10 to 15 grams per hen. The foods the official sources say never to feed are a short list: avocado, chocolate, onions, rhubarb, raw or dried beans, anything mouldy or rotten, salty or fatty food, green potatoes, the leaves of tomato, potato, pepper and eggplant plants, alcohol and tobacco. Citrus and cheese are “better not”. Potatoes and beans are fine only cooked.

How to use it

Type one food, the way you would say it — grapes, potato peels, can chickens eat bread. The part matters, so the checker treats tomatoes and tomato leaves, or potatoes and green potatoes, as different questions, because the sources do. Set how many hens you have and it works out today’s treat limit for the whole flock. Switch to chicks and the limit disappears, because chicks eat starter feed.

The never list, and who says so

Every item below is named by an extension service or a veterinary reference — not by a list copied from one blog to the next:

• Avocado — UC Davis lists it; Colorado State says the skin and pit are toxic but the flesh is fine. When two official sources disagree about something that can kill a bird, this tool takes the stricter answer.
• Chocolate, alcohol and tobacco — UC Davis.
• Onions and rhubarb — Colorado State, with UC Davis naming rhubarb leaves.
• Raw or dried beans — both sources. Cooked right through, beans are fine.
• Green potatoes and the leaves of tomato, potato, pepper and eggplant plants — UC Davis. Colorado State adds a warning about potato peelings and solanine.
• Anything mouldy or rotten — both sources.
• Salty food — Colorado State. That quietly rules out crisps, crackers, salted nuts, hot dogs and most leftovers with a sauce on them.
• Fat trimmings and greasy food — the Merck Veterinary Manual, in blunt terms: fat scraps promote fatty liver and “acute death from liver rupture”.

How much is a treat?

A laying hen eats between 100 and 150 grams of feed a day — roughly a quarter of a pound, according to Alabama Extension. Colorado State Extension caps treats at 10% of the daily diet, which makes it 10 to 15 grams per hen per day — about half an ounce, for all treats together, not per treat. For six hens that is a small handful of chopped greens and a few grapes, not the salad bowl.

If you would rather go by the clock, the sources disagree: Colorado State says no more than they can clear in 5 to 10 minutes, the University of Kentucky says 20. Both agree on the reason, which UC Davis puts well: the feed is balanced and the scraps are not, and a flock filling up on scraps is a flock short of protein and calcium — which you see first as thin shells and fewer eggs.

What “fine as a treat” means here

Nobody official publishes a verdict on every food in the kitchen, and I am not going to pretend otherwise. So a green “fine as a treat” means two specific things: the food is a fruit, vegetable or grain scrap of the kind Colorado State Extension suggests for treats, and it appears on neither Colorado State’s nor UC Davis’s list of foods to avoid. If you type something the sources do not cover at all, you get “not rated”, not a guess — and if you are not sure, don’t. There is always another treat.

Chicks are different

Chicks should be eating a complete starter feed, and there is not much room in a chick for anything else. UC Davis adds the practical point: a bird eating only commercial feed does not need grit, because the feed is already digestible, but one that eats anything else needs grit to grind it — for chicks, from after their first week.

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