Agricultural lime is calcium carbonate (CaCO3). It is used to raise pH levels in the soil and can be used to provide calcium for plants.

For your purposes, you'd want quicklime (calcium oxide, CaO) or hydrated lime (calcium hydroxide, Ca(OH)2). You will want to be careful when using either product because the products can burn your (and your birds') skin and mucus membranes. 

For more information, read this article: https://poultry.extension.org/articles/poultry-management/using-lime-in-poultry-houses/