Oyster Grit - Per Kilo

Chickens and poultry require grit which is held in their crop and grinds the seeds etc they eat down before being passed along the gut. Chickens don't have teeth (hence the term "as rare as hens teeth"!) Oyster is a good source of calcium which is needed for the production of egg shell. Soft shelled or thin shelled eggs are usually caused by a lack of calcium in the diet that oyster shell will naturally correct.