Hi, using diatomaceous earth is benefical for chickens, other animals and pets, and people. There is a lot of wonderful information on this site about using it. Just use the search function near the top of the message board and key it in.
Just remember that some posters were confused about the pool DE and the food grade.
As stated by a few here,
please ONLY use food grade DE! I am a safety engineer and I beg you to not buy the cheapest DE at a pool supplier. It has been altered and chemicals have been added to it - this type is TOXIC. It has a very high level of silica which can cause respiratory problems if not handled properly. It is NOT the correct type of DE to use for chickens or other animals.
The food grade has a very low % of silica and has no toxic chemical additives.
Here is a good website to read and excellent article about DE.
http://wolfcreekranch1.tripod.com/defaq.html
They also sell it. If you can find it locally just make certain that you are purchasing the food grade and it is labeled similar tho what another poster stated.
DE can be a wonderful and healthful addition to food and pet management, if the right type is used.
It's safe but the use of a dust mask may be something you would want to try. Also, don't spread outside on a windy day.
Hope this helps,
Posey