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Calcium Carbonate has a wide variety of uses and applications in the agriculture industry such as

  • Animal/Poultry Feed & Pet Food
  • Animal Nutrition
  • Agricultural Lime
  • Cubicle Lime

We are currently supplying various animal feed companies in both Ireland and the UK, and selling Feed Grade Calcium 1000kg and 25kg bags through various co-ops and merchants nationwide. To find you nearest stockist email or call 0035394 9553900.

Animal/Poultry Feed and Pet Food

Calcium Carbonate is an essential mineral for the healthy growth and development of livestock and domestic animals. It plays an important role in the metabolic process, retention and conversion of nutrients and regulates cell activity. It also supports healthy bone and skeleton development in young livestock. Calcium is one of the main minerals needed by animals to grow, develop and produce.

Its main function in the animal is for bone and teeth formation, smooth muscle contraction, e.g. the rumen, and for blood clotting. A deficiency or imbalance in calcium can cause poor growth rates, poor bone development, reduced milk output, displaced abomasums and more obviously milk fever. A lesser known fact is that it can also cause urinary calculi in male animals, (intact or castrated). It is also vital for poultry to support healthy digestion and the strengthen and harden shells.

Animal Nutrition

All farmers should ensure they are feeding some form of calcium supplementation. It can be fed through a diet feeder or more simply thrown on the silage in front of the stock. It’s not particularly hard to do and yet still many farmers don’t feed any at all. It’s of vital importance, especially in a bad year, where silage quality may be poor and more meal is being fed. The other concern is, due to the economic situation many farmers are facing, minerals are quite often seen as just another added cost, but Calcium is the cheapest mineral you can feed your stock

Different animals require different level or quantities of Calcium Carbonate at different stages of their growth. It is always best to consult with a professional animal nutritionist to ensure the correct ratio for animal feed of livestock.

Agricultural Lime

Agricultural lime is a mineral fertilizer used to neutralize and nourish agricultural land. It corrects soil acidity and pH levels by neutralising the acids in soils so that the micro-organisms can thrive, break down plant and animal residues and free the elements required for healthy growth of the land. This is vital to maximise crop yield, animal grazing and good quality silage/hay.

We are currently one of the top producers of agricultural lime or Grolime in the West of Ireland and provide quality, fast and efficient service, and on time delivery and spreading. Our lime is tested twice annually by the Dept of Agricultural which in turn provides us with a licence to sell. We are also members of the Ground Limestone Producers Association.


Connolly’s Red Mills uses only the highest quality of raw materials and is pleased to be associated with McGrath’s Limestone Works Ltd for the supply of top quality calcium carbonate. Our feed ingredients must be of the highest quality and that’s why we deal with McGrath’s, their delivery and service is excellent and they pride themselves on quality, innovation and family values as we do. Connolly’s RED MILLS is the name you can trust. We produce premium high-performance equine feeds and pet foods, and our expertise in research and innovation has been built up over five generations. We know just what it takes to give you the best results in terms of animal nutrition, health and performance. Our top quality products are supported by some of the most technologically advanced processes in the world. Our customers range from Ireland, UK, Continental Europe, the USA, Japan and elsewhere in the Far East. Our family-owned business is also a leading name in Ireland’s farming community, for our excellent range of animal feeds and services.”

Connolly’s Red Mills
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