3301 106th Circle
Urbandale, IA 50322
P: (800) 247-2133
P: (515) 243-8106
F: (515) 244-3200

800 River Drive
Alden, IA 50006

17788 State Hwy 941
Alden, IA 50006

Gilmore City, IA 50541

36320 Fletcher Avenue
Weeping Water, NE 68463
36100 Fletcher Avenue
Weeping Water, NE 68463

12051 Yosemite Ave.
Savage, MN 55378

13277 Thorn Road
Jasper, MO 64755

8090 South SR-243
Cloverdale, IN 46120

Feed-Grade Calcium Calcium in Animal Nutrition 

Known as the essential ingredient in an animal’s skeletal system, calcium also plays a role in nerve impulse transmission, blood clotting, milk production and eggshell development. It impacts tooth development, heart beat regulation and reproduction. It’s the most abundant mineral found in the body, and adequate dietary levels of calcium are required daily. Our calcium carbonate (CaCO3) is an ideal choice because of its purity, high calcium content and high bioavailability.
The products offered by ILC Resources range from powders to granular products—under 10 microns to more than 3000 microns in size—to meet a variety of mixing needs. We also provide custom blends to meet the exact manufacturing and feeding requirements of  our customers.
FRE FLO™ is our most popular granular blend and delivers the greatest particle size range to optimize animal performance, nutrient digestion and utilization. It is used in mills manufacturing feed for all species.
FRE FLO™ CUSTOM - Our flexible custom blending system allows ILC Resources to produce granular blends to the particular specifications of your mill.
SHELL & BONE BUILDER™ - Our product is high in calcium, low in solubility and ideal for laying hens. It is a proven oyster shell replacer.
SHELL & BONE BUILDER BLEND™ - This is a high calcium, low solubility blend of hen and pullet-sized calcium carbonate. It is suited for most mechanical feeding systems for layers.
UNICAL™ F - This is a high calcium, medium-low solubility product, sized for growing pullets and turkeys.
UNICAL™ L - This product is a larger, coarsely textured uniform granule that is ideal for mixing with other mineral ingredients. It is used in premixes and base mixes.
UNICAL™ S - Our finely textured uniform granule is a "mixing calcium" for complete feeds and mineral mixes for all species.
UNICAL™ P - This 200-mesh powder is used in liquid suspensions and dry feed. It also is an excellent pellet-dusting agent.
UNICAL™ UF - This is an ultra fine powder for liquid feed supplements and suspensions.
Feed-grade calcium carbonate is listed by the Association of American Feed Control Officials (AAFCO) as feed ingredient number 57.10. Calcium carbonate is certified by the Food and Drug Administration (FDA) as being G.R.A.S. (Generally Recognized as Safe). Calcium carbonate also is approved as meeting "organic" specifications under the National Organic Program (NOP) guidelines. All ILC Resources' feed-grade calcium carbonate products meet these designations.