All birds need insoluble grit which lodges in their gizzard to assist in grinding food so that the nutrients can be absorbed in the small intestine.
If your birds forage on ground that has a wide range of sizes of sharp stones, they'll pick up what they need.
If not, you need to provide it. Cage birds, like parakeets need to be provided with appropriately sized grit.
Oyster shell is soluble, meaning it dissolves by the time it gets to the gizzard so serves no purpose for digestion, only adding calcium for birds actively making egg shells.
The size of the bird determines the size of the grit. Too small and it won't lodge in the gizzard and pass right through.
All feed stores should carry grit. Some don't carry all sizes. For poultry there are 4 sizes. #4 is for turkeys. 1-3 is for various aged chickens.
http://www.tccmaterials.com/pdf/CSgritdata.pdf
If your birds forage on ground that has a wide range of sizes of sharp stones, they'll pick up what they need.
If not, you need to provide it. Cage birds, like parakeets need to be provided with appropriately sized grit.
Oyster shell is soluble, meaning it dissolves by the time it gets to the gizzard so serves no purpose for digestion, only adding calcium for birds actively making egg shells.
The size of the bird determines the size of the grit. Too small and it won't lodge in the gizzard and pass right through.
All feed stores should carry grit. Some don't carry all sizes. For poultry there are 4 sizes. #4 is for turkeys. 1-3 is for various aged chickens.
http://www.tccmaterials.com/pdf/CSgritdata.pdf
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