Whether you own a backyard flock or raise champion birds, we know how fulfilling it is to check your nesting boxes and find perfect, beautiful eggs. Avoid cracked or broken eggs with Manna Pro Oyster Shell. Effective and convenient, it helps reduce the number of weak, soft or broken shells by naturally adding calcium to your flock's diet. It's as simple as that! Add Manna Pro Oyster Shell to your mix and enjoy finding gorgeous eggs every time! 100% Satisfaction Guaranteed

FOR LAYING POULTRY: Our crushed oyster shells are crafted to provide essential calcium for all laying poultry including chickens, ducks, and quails; from backyard flock to commercial farms, our product is the perfect addition to your chicken feed
OYSTER SHELL & CORAL CALCIUM: Our chicken oyster shells are made from a blend of crushed oyster shells and coral calcium, ensuring that your poultry receive a high-quality source of chicken calcium that is easily digestible
STRONGER EGGSHELLS: Our crushed oyster shells are an excellent source of calcium for chickens, providing the necessary nutrients for proper eggshell formation, resulting in high-quality eggs and a healthier flock overall
HEAT TREATED FOR PURITY: Our oyster shells for chickens are heat treated to ensure maximum purity and cleanliness; our crushed oyster shells for chickens are free from harmful contaminants, bacteria and pathogens, making it safe for your poultry to consume
MADE IN USA: Our chicken food is proudly made in the USA, using only the finest ingredients; by choosing our crushed oyster shells for chickens, you're ensuring your birds receive a high-quality, domestically made product that you can trust

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Reviews

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655 reviews with 5 stars.

53 reviews with 4 stars.

39 reviews with 3 stars.

15 reviews with 2 stars.

23 reviews with 1 star.

Overall Rating

4.7

309 out of 328 (94%) reviewers recommend this product

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Most Helpful Favorable Review

5 out of 5 stars.

10 years ago

I buy this product for my wife and she puts them around her hosta plants. And this prevents those nasty and annoying slugs from eating on our plants. An inexpensive and easy solution to the big problem for the many plants around the house.

18 people found this helpful

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Most Helpful Critical Review

3 out of 5 stars.

I have stupid chickens

7 years ago

My chickens will not eat this. I have used different brands of oyster shell and they eat that. I think they like the thin flakes of shell and this is more pebble like. I gave it 3 stars for the price. I can't leave a lower rating because maybe my chickens are just defective and stupid...that is not the fault of the product. Manna Pro is a great company.

8 people found this helpful

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1 to 4 of 785 Reviews

1 – 4 of 785 Reviews

Review 1

5 out of 5 stars.

Delivery

4 days ago

Great delivery people and products

SweepstakesYes

Yes, I recommend this product.

Anonymous

Stafford, VA

Review 1

5 out of 5 stars.

Great Product

13 days ago

I’ve been using it for a couple of years.

SweepstakesYes

Yes, I recommend this product.

Review 1

5 out of 5 stars.

Great pricing

27 days ago

Because of shipping costs elsewhere, Tractor Supply has the best price on oyster shells for my chickens. Organic fertilizer, same thing! Great!

SweepstakesYes

Yes, I recommend this product.

Seattle, WA

Reviews 3

5 out of 5 stars.

Good for birdies

30 days ago

Great to add to game bird feed to provide extra nutrition and grind up food.

SweepstakesYes

Yes, I recommend this product.

Manna Pro Oyster Shell Poultry Treats, 50 lb.

At a glance

Neighbor’s Club Members earn points with purchases.

Manna Pro Oyster Shell Poultry Treats, 50 lb.

At a glance

Neighbor’s Club Members earn points with purchases.

Manna Pro Oyster Shell Poultry Treats, 50 lb.

Neighbor’s Club Members earn points with purchases.

At a glance

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Reviews

Rating Snapshot

Overall Rating

Review this Product

Most Helpful Favorable Review

Most Helpful Critical Review

I have stupid chickens

Delivery

Great Product

Great pricing

Good for birdies