Crushed Oyster Shells for Poultry 2–5 mm – 10 kg

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

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

Naturally rich in marine calcium, they help meet the mineral requirements of birds, which are particularly important during egg production.

Available in a 2–5 mm particle size, they are suitable for free-choice feeding or incorporation into the daily feed ration.

Essential Calcium Supplementation for Egg Production

Calcium plays a fundamental role in poultry nutrition. In particular, it contributes to:

• Eggshell formation and strength.

• Skeletal development in young poultry.

• Maintaining bone structure in adult birds.

• Balancing the mineral content of the feed ration.

With a minimum calcium content of 38%, crushed oyster shells provide a valuable natural calcium source for laying hen farming.

Why Choose a 2–5 mm Particle Size?

Unlike very fine particles, 2–5 mm crushed oyster shells allow calcium to become available progressively during digestion.

This characteristic is particularly beneficial for laying hens, which have high calcium requirements during eggshell formation.

The particle size also makes the shells easy to identify in a feeder or feed ration.

A Mineral Supplement for Different Poultry Species

Perrin Madox Crushed Oyster Shells are suitable for:

• Laying hens.

• Chickens.

• Guinea fowl.

• Turkeys.

• Ducks and geese.

• Pigeons.

They can be used in various farming environments alongside a balanced diet.

Directions for Use

Offer crushed oyster shells free-choice in a separate container, or incorporate them directly into the feed ration.

As a guideline, the technical data sheet recommends an inclusion rate of 3–5% of the total feed ration for laying hens, to be adjusted according to the feed formulation and the animals' nutritional requirements.

Always provide access to clean drinking water.

Technical Specifications

Perrin Madox: Over a Century of Expertise

Since 1905, Établissements Perrin, based in Thiers in the Puy-de-Dôme department of France, has specialised in mineral supplements for animals.

We supply crushed oyster shells to livestock farmers and professional distributors, with packaging formats adapted to their needs.