Crushed Oyster Shell 25kg

Price
$41.50
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In stock at Canvasback

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Product Information

Crushed Oyster Shell for Laying Hens – 25kg Bulk Bag | Hen Express

Premium Calcium Supplement for Strong Eggshells and Flock Health

For poultry keepers who mean business, Hen Express offers a bulk 25kg bag of Crushed Oyster Shell for Layers—a natural, slow-releasing calcium source essential for optimal egg production and long-term hen health.

This large-format option is ideal for larger backyard flocks or small-scale poultry farms. Crushed oyster shell provides hens with the extra calcium they need during peak laying periods, helping to prevent issues like thin or soft eggshells, bone weakness, or calcium deficiency.

Why Oyster Shells Matter

Unlike grit, which aids digestion, crushed oyster shell is strictly a calcium supplement. As eggshells are made up of nearly 95% calcium carbonate, layers need more calcium than what standard feed provides. That’s where our clean, natural oyster shells come in—delivering sustained, bioavailable calcium your birds can absorb when they need it most.

Why Choose Hen Express Crushed Oyster Shell – 25kg?

  • Bulk Size for Bigger Flocks – Cost-effective, convenient, and perfect for daily use

  • Excellent Calcium Source – Supports stronger shells and better overall laying performance

  • Natural and Clean – Made from sun-dried, crushed oyster shells with no additives or artificial fillers

  • Promotes Long-Term Hen Health – Helps maintain skeletal integrity and laying efficiency

  • Simple to Feed – Offer free-choice or mix into feed—your hens will instinctively consume what they need

Eggshells vs. Oyster Shells

Feeding hens their own eggshells may seem like a quick fix, but it often leads to inconsistent calcium levels and can trigger harmful behaviors like egg-eating. Crushed oyster shell is a safer, more effective solution—providing the right balance of calcium without the risk.

Feeding Instructions:

Place in a separate feeder for free-choice access, or mix into layer rations at a rate of 1–2 tablespoons per bird per day. Always provide fresh water and a balanced layer feed for optimal results.


Support your hens with a consistent, natural calcium boost. Choose Hen Express Crushed Oyster Shell – 25kg for a healthy, high-producing flock.

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