Can chickens eat blueberries?

Why

Chewy's vet-reviewed page says plain fresh or thawed blueberries are fine as an occasional treat; they add water and a little fiber. Purina also lists them among fruits to feed in moderation. Too much sugar can cause loose droppings.

How to serve blueberries

• Wash and serve plain
• Frozen berries make a hot-weather treat (Grubbly Farms)
• No muffins, pie filling, jam or syrup-packed berries

How often: About 1/2 cup shared among several birds, once or twice a week (Chewy).

Be careful with

• May turn droppings blue (The Happy Chicken Coop)
• Discard moldy berries

And for chicks?

Chewy: no for baby chicks; Lisa Steele (Chewy chick guide) suggests mashed berries as a hot-weather treat for chicks.

The treat rules for every food

1. 1Scraps are not nutritionally balanced. Letting them displace complete feed can cause nutritional disorders and lower egg production; hens that fill up on treats can run short of calcium and draw it from their bones, weakening shells.
2. 2Never feed moldy, rotten or spoiled food. Molds can produce mycotoxins (e.g., aflatoxin on corn, peanuts, nuts, rice) that harm poultry, and University of Kentucky notes mycotoxins remain even if visible mold is removed. Rotting food can also be a source of Clostridium botulinum (botulism, 'limberneck'). Stale or wilted (not moldy) produce and bread are generally considered fine.
3. 3Avoid very salty, sugary, fatty, fried or heavily processed human food (chips, fast food, candy, heavily salted leftovers). Merck notes salt above about 2% of the diet is usually considered dangerous for poultry, that birds under 21 days old are more susceptible, and that restricted water access makes salt problems worse.
4. 4Provide insoluble grit (granite grit or small stones) whenever chickens eat whole grains, scratch, seeds or forage; birds that can reach the ground usually find their own. Oyster shell is a calcium source, not grit (it is too soft). Birds eating only a complete pelleted feed do not need grit.

All 10 rules · How much feed they need