Manna Pro Crushed Oyster Shell for Chickens – Calcium Supplement for Laying Hens to Support Strong Eggshells – Natural Poultry Mineral Feed for Backyard Chickens – 5 lb Bag
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Manna Pro Crushed Oyster Shell for Chickens – Calcium Supplement for Laying Hens to Support Strong Eggshells – Natural Poultry Mineral Feed for Backyard Chickens – 5 lb Bag

4.6/5
Product ID: 4312710
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Details

  • Brand
    Manna Pro
  • Flavor
    Egg
  • Age Range (Description)
    All Life
  • Item Form
    Pellet
  • Specific Uses For Product
    Outdoor
🔥Heat-treated for purity & safety
🦪Premium oyster & coral calcium blend
🇺🇸Proudly made in the USA

Description

🦪 Crack the secret to stronger eggshells and a thriving flock!

  • PURE SAFE - Heat-treated to eliminate contaminants, ensuring your flock’s health.
  • TRUSTED QUALITY - Made in the USA with premium ingredients you can rely on.
  • CALCIUM POWERHOUSE - Boost eggshell strength with a natural oyster & coral calcium fusion.
  • FLOCK WELLNESS BOOSTER - Supports overall poultry health for vibrant, productive birds.
  • VERSATILE FOR ALL POULTRY - Perfect for chickens, ducks, and quails—backyard or commercial.

Manna ProCrushed Oyster Shell is a 5 lb calcium supplement crafted from a blend of crushed oyster shells and coral calcium, heat-treated for purity and safety. Designed for all laying poultry, it supports stronger eggshell formation and overall flock health, proudly made in the USA.

Specifications

Item Weight5 Pounds
Allergen InformationCelery Free
FlavorEgg
Item FormPellet

Have a Question? See What Others Asked

I have 2 adult hens, how much should they be given per day or week?
Is this too large for vermi-composting. Will worms eat it?
Hi can i feed baby chiks?
Where is this from USA ?

Reviews

4.6

All from verified purchases

K**R

okay

Good quality. Appearance is as expected. Great value for the money. Durable

B**R

I only use this brand now

Chickens do great on this on better then the other brands

A**R

Good product

My chicken eggs have strong shells but I bought this to be sure. They're eating it some.

M**Y

Chicken supply

Last a good amount of time. Perfect size to fill my gravity feeder ( cat food dispenser) . No smell, no sharp edges that i can see. My girls like it and seems to work well.

A**E

Good for Chickens, NOT for Quail

This would be good for Chickens. However not so good for Quail. The crush size is too large for Quail. I have tried to reduce the crush size by blender, which did not work, and then bagging it and whacking it with a hammer MANY times, which also did not work. Holy cow, oyster shell is strong!

M**T

Works as expected.

Great value, much less expensive than local stores. Chickens and ducks need this to assist with digestion so great for their health.

A**R

Good for chickens and harden up egg shells

Great for the chickens, my egg shells were very thin and after feeding these and few weeks late I noticed the eggs were harder to crack.

C**Y

Chickens love it

Only shell my chickens will eat

Common Questions

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Abdullah B.

Great price for an authentic product. Fast international shipping too!

3 weeks ago

Suresh K.

Very impressed with the quality and fast delivery. Will shop here again.

4 days ago

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£17.24

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Trustpilot

TrustScore 4.5 | 7,300+ reviews

Ayesha M.

The product exactly matches the description. Very satisfied with my purchase.

5 days ago

Anita G.

Good experience, but the tracking updates could be better.

2 months ago

Manna Pro Crushed Oyster Shell For Chickens Calcium Supplement Laying | Desertcart GB