Small Pet Select Oyster Shell Calcium Poultry Supplement, 5-lb bag

By Small Pet Select
Rated 4.2692 out of 5 stars
Slide 1 of 3
Small Pet Select Oyster Shell Calcium Poultry Supplement, 5-lb bag slide 1 of 3
Slide 1 of 3
Small Pet Select Oyster Shell Calcium Poultry Supplement, 5-lb bag slide 1 of 3
$21.99Chewy Price
$20.89Autoship Price
Autoship (Save an extra 5%)
Choose Autoship at checkout for regular deliveries.

Why Autoship?

  • FREE access to chat with licensed vets 7 days a week.
  • Save 5% on all future Autoship orders.
  • No fees, no commitments - cancel Autoship anytime.

In Stock
FREE 1-3 day shipping over $49

Frequently Bought Together

Frequently Bought Together
Rated 4.2692 out of 5 stars
$21.99Chewy Price
Frequently Bought Together
Rated 4 out of 5 stars
$43.99Chewy Price

Save Extra 20% Off at Checkout

Frequently Bought Together
Rated 4.717 out of 5 stars
$39.95Chewy Price
Total Price: $0.00

About This Item

  • Crushed oyster shells are a great source of supplemental calcium for laying hens, providing extra when they need it most.
  • Helps increase the strength of eggshells and the quality of your hens’ eggs.
  • Promotes healthy plumage in chickens, ducks or other waterfowl.
  • The thinner shells are ideal for feeding alone or mixing into your hens’ feed.
  • Made from 100 percent, all-natural and GMO-free flaked crushed oyster shells.

Compare Similar Items

Customer Rating
Rated 4.2692 out of 5 stars
Rated 1.8 out of 5 stars
Rated 3 out of 5 stars
Rated 3 out of 5 stars
Rated 3 out of 5 stars
$21.99Chewy Price
$17.99Chewy Price
$20.19Chewy Price
$19.00Chewy Price
$19.65Chewy Price
$20.89Chewy Price
$17.09Chewy Price
$19.18Chewy Price
$18.05Chewy Price
$18.67Chewy Price
Top Ingredients100% Flaked Crushed Oyster ShellsInsoluble Crushed Quartzite GraniteStabilized Ground Flaxseed, Folic Acid, Zinc Sulfate...Organic Sea Kelp.Processed Grain By-Products, Whole Shelled Corn, Whole Wheat...
Bird TypeChicken, PoultryChickenChickenChickenChicken
Health FeatureN/ADigestive HealthVitamins & MineralsVitamins & MineralsVitamins & Minerals
Food FormSupplementSupplementSupplementTreatsSupplement
Special DietN/AN/AN/AOrganic, Non-GMON/A

Questions & Answers

4 Customer Questions

are these oyster shells manufactured in the US?? Thanks.
Answer by ChewySep 09, 2020
This is made in the USA.

Can I give this to finches, diamond doves, and button quails?
Answer by ChewyApr 26, 2021
This supplement is suitable for hens, ducks, and mixed fowl.

Hi, can I use this for ducks as well? Thanks
Answer by ChewyApr 07, 2021
This promotes healthy plumage in chickens, ducks or other waterfowl.

How much should we mix in with grower feed to supplement/mimic the calcium level in layer feed? We accidentally ordered the wrong feed and want to amend it.
Answer by ChewySep 25, 2020
Please see the attached instructions for this supplement below.

ReviewsWrite a Review

Rated 4.2692 out of 5 stars
26 Reviews
Would recommend to a friend

26 Customer Reviews

Rated 1 out of 5 stars
By RaeRae on May 19, 2022

Oyster not flaked shelled anymore?

My ducks would eat these. I bought another bag and they are so different now, not flakes? What happened? Why change?

Rated 2 out of 5 stars
By Kale on Apr 14, 2022

Used to be great!

My little snobs/ducks loved this brand of oyster shells, but it has changed and they will no longer eat it. I would give it a 5 star for before and a 1 star for now.

Rated 5 out of 5 stars
By Jessi on Mar 6, 2022

Glad it's back to normal

I'm glad the oyster shell was just as it has been! Sadly my feed was 5 months old(this is only the second time in 2 years this had happened)and had some moldy pieces in it so I cannot feed it to my ladies

Rated 1 out of 5 stars
By Disapointed on Apr 10, 2022

NOT oyster shell...

This is not flaked oyster shell but seashells that my chickens won't touch. Waste of money

Rated 5 out of 5 stars
By JudyB on Mar 14, 2022

Flaked Oyster Shell

I prefer giving my chickens and ducks the flaked oyster shell, and Small Pet Select is one of the few companies still offering it.

Rated 5 out of 5 stars
By CrazyChickenLady on Feb 9, 2022

Good quality, flaked oyster shell

My flock loves this flaked oyster shell so much better than the pebble variety. Happy that it's available again!

Rated 5 out of 5 stars
By Stevie on Aug 22, 2021

Practically overnight results

I could tell that my girls were somewhat calcium deficient by how rough and thin their shells were, but once I accidentally dropped a cracked eggshell meant for the non-chicken compost into their run and they went wild for the bits, I realized I couldn't ignore their needs any longer and immediately ordered this bag of oyster shell. It arrived to my rural location in days, and practically overnight I could see the difference in their eggs. A little bit goes a long way (I've just been sprinkling a little bit on top of their feed every day), and it's well worth adding to their diet.

Rated 5 out of 5 stars
By Jmart on Aug 19, 2021

Smells like seashells!

We had originally used pelleted oyster shell... I think from Manna, but the girls didn't seem to touch it. It was little small white crumbles... like chalk. I ordered this on a whim and was super impressed to see this was actual crunchy oyster shell. It sounds weird, but my kids and I loved smelling the open bag because it reminded us of the beach (not a fishy smell, but an ocean/salty smell). The girls have been eating this more than the other stuff we've used and we got our first egg a few days ago! Nice hard shell too!

Rated 5 out of 5 stars
By Joey on Aug 8, 2021

Great product-Great price

I had been on a subscription program for a similar oyster shell product. They had to discontinue this service due to product unavailability until at least September. Went to the hard white stone type oyster shell and knew this wasn’t the best I could do for my ducks. I saw this and decided why not? This is the thin, flaky shell I was looking for. Cheaper than my previous subscription, which also charged nearly as much for shipping as the product itself. Try this, I don’t think you’ve disappointed!

Rated 1 out of 5 stars
By Kris on Aug 10, 2021


Previously this was an excellent, high-quality product. Following the oyster shell shortage it was out of stock for months. I was thrilled to find it recently back in stock and ordered 50 lbs only to find it is crushed seashells and/or clamshells and NOT the softer and more digestible flaked oyster shell. This type of shell IS NOT widely recommended for poultry due to its hardness and riskier shape. Contacted Small Pet Select who verified this was a huge judgement error by the warehouse and they have received many complaints. Chewy issued a full refund.