Granit grit

First lets agree on definitions. In different countries grit can mean different things. This forum is worldwide. I've seen people confused by the different definitions of grit.

Chickens do not have teeth to help grind up stuff that needs to be ground so they eat bits of rock to use inside their gizzard to help them grind things up. In the US we call that grit. In the UK that is called insoluble grit. Not sure what it might be called in other countries.

Oyster shell is often used as a calcium supplement for thicker egg shells. In the US we call it oyster shell, In the UK oyster shell is called soluble grit as it dissolves in acids such as digestive juices.

About any rock can be used as insoluble grit to substitute for teeth in the gizzard. The harder that rock is the longer it lasts. Granite is really hard, it makes a great insoluble grit. If you buy grit at the feed store it should be granite. They sieve the wastes of a granite quarry to get the right sizes and sell that as grit. So if you are talking about the insoluble type of grit granite works tremendously well.

If you are talking about the soluble type of grit granite will not work as a calcium supplement.
 
First lets agree on definitions. In different countries grit can mean different things. This forum is worldwide. I've seen people confused by the different definitions of grit.

Chickens do not have teeth to help grind up stuff that needs to be ground so they eat bits of rock to use inside their gizzard to help them grind things up. In the US we call that grit. In the UK that is called insoluble grit. Not sure what it might be called in other countries.

Oyster shell is often used as a calcium supplement for thicker egg shells. In the US we call it oyster shell, In the UK oyster shell is called soluble grit as it dissolves in acids such as digestive juices.

About any rock can be used as insoluble grit to substitute for teeth in the gizzard. The harder that rock is the longer it lasts. Granite is really hard, it makes a great insoluble grit. If you buy grit at the feed store it should be granite. They sieve the wastes of a granite quarry to get the right sizes and sell that as grit. So if you are talking about the insoluble type of grit granite works tremendously well.

If you are talking about the soluble type of grit granite will not work as a calcium supplement.
Great info! Good to know!
 

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