Crushed Oyster Shells for Poultry 2–5 mm – 20 kg

Perrin Madox Crushed Oyster Shells 2–5 mm: Natural Calcium for Poultry

Perrin Madox Crushed Oyster Shells are a mineral feed supplement intended for laying hens, pigeons and other poultry.

Naturally rich in calcium carbonate, they provide a supplementary source of calcium to help meet birds' nutritional requirements, particularly during egg production.

Their 2–5 mm particle size makes them suitable for use in poultry feeding, either offered separately or incorporated into the daily feed ration.

A Natural Calcium Source for Strong Eggshells

Calcium plays an essential role in poultry nutrition, particularly during the laying period.

It contributes to:

• Eggshell formation and strength.

• Bone development and maintenance.

• Maintaining a balanced mineral intake.

• Meeting the increased calcium requirements of laying hens.

With a minimum calcium content of 38%, crushed oyster shells provide a valuable mineral supplement alongside a balanced diet.

Why Choose 2–5 mm Crushed Oyster Shells?

Particle size is an important consideration when choosing a calcium source for poultry.

Compared with finely ground calcium sources, larger oyster shell particles tend to remain in the digestive tract for longer, allowing calcium to become available more gradually.

This can be particularly beneficial for laying hens, as eggshell formation continues during periods when birds are not actively feeding.

Suitable for Pigeons and Poultry

Perrin Madox Crushed Oyster Shells can be used to supplement the diets of:

• Laying hens.

• Chickens.

• Pigeons.

• Guinea fowl.

• Turkeys.

• Ducks and geese.

Calcium supplementation should be adapted to each species, its age and its nutritional requirements.

Directions for Use

Offer crushed oyster shells in a separate feeder for free-choice consumption, or incorporate them into the daily feed ration.

For laying hens, an inclusion rate of 3–5% of the feed ration may be used as a guideline, depending on the composition of the complete feed and the birds' requirements.

Always provide access to fresh, clean drinking water.

Technical Specifications

Perrin Madox: Animal Mineral Nutrition Since 1905

Based in Thiers, in the Puy-de-Dôme department of France, Établissements Perrin has specialised in mineral products for animal nutrition since 1905.

Our crushed oyster shells are available in different packaging formats to meet the needs of poultry farmers, pigeon breeders, backyard poultry keepers and professional distributors.