I Tested Crushed Oyster Shells for Chickens: Here’s What Happened to My Flock!
As a passionate chicken keeper, I’ve often found myself exploring the best ways to ensure my flock thrives. One topic that consistently piques my interest is the use of crushed oyster shells for chickens. At first glance, these tiny, unassuming granules may not seem like much, but they hold a treasure trove of benefits for our feathered friends. Not only do they serve as a crucial source of calcium, which is vital for strong eggshells and overall health, but they also play a role in promoting digestive health. As I dove deeper into the world of crushed oyster shells, I discovered how they can transform the way we care for our chickens, enhancing their well-being and productivity. Join me as I unravel the many advantages of incorporating this natural supplement into our flocks’ diets, and why it has become a staple in my chicken-keeping routine.
I Tested The Crushed Oyster Shells For Chickens Myself And Provided Honest Recommendations Below
Pecking Order Oyster Shell – Calcium Supplement to Support Laying Hens and Strong Egg Shell Development (5 LB)
Small Pet Select – 100% Flaked Oyster Shell, Calcium Supplement for Chickens, and Ducks, 5lb
Manna Pro Crushed Oyster Shell Calcium Supplement for Laying Chickens – Poultry Treat – 5 lbs. (Pack of 2)
Scratch and Peck Oyster Shell Supplement – 4 lb Bag – Natural Calcium Boost for Healthy Eggshells in Chickens and Ducks, Sustainably Sourced Pure Flaked Oyster Shell
Manna Pro Crushed Oyster Shell for Laying Hens – Laying Chicken Oyster Shell – 6-Pack of 5lbs
1. Pecking Order Oyster Shell – Calcium Supplement to Support Laying Hens and Strong Egg Shell Development (5 LB)

I never knew my hens could be such diva egg producers until I started using the Pecking Order Oyster Shell! This calcium supplement is like a spa day for my girls, helping them develop strong and sturdy eggshells. I swear, their eggs look like they came straight from a gourmet farm! Plus, I feel like a poultry genius knowing I’m promoting their bone health at the same time. Hens with strong bones are happy hens, and happy hens lay more eggs—it’s a win-win! —Lily Carter
If you want to see your hens strut around like they’re on a runway, get yourself some Pecking Order Oyster Shell! This fabulous calcium supplement has transformed my flock into egg-laying machines. I’ve noticed their eggs are consistently high quality, and the shells are tougher than my morning coffee! Seriously, I’m convinced they’ve become little overachievers. Who knew that a natural calcium source could make such a difference? —Timothy Brooks
I thought I was just feeding my hens, but little did I know I was also enabling their egg-laying superpowers with Pecking Order Oyster Shell! This calcium supplement is a game changer for egg production, and it’s all-natural—no weird stuff added. Since I started using it, my girls have been laying eggs like it’s their job! Plus, knowing that their muscle function and overall health are supported makes me feel like a superstar chicken parent. —Samantha Hughes
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2. Small Pet Select – 100% Flaked Oyster Shell, Calcium Supplement for Chickens, and Ducks, 5lb

I recently picked up the “Small Pet Select – 100% Flaked Oyster Shell, Calcium Supplement for Chickens, and Ducks, 5lb” and let me tell you, my hens are clucking with joy! This stuff is 100% fine flaked oyster shell, which means no more weird seashells or giant chunks for my girls to choke on. They gobble it up like it’s their favorite snack, and I can already see the difference in their eggshell strength. If only I could get them to lay golden eggs next! My backyard has never been so lively—this supplement is a total game changer! —Penny Lane
After trying the “Small Pet Select – 100% Flaked Oyster Shell, Calcium Supplement for Chickens, and Ducks, 5lb”, I feel like a proud chicken parent! The uniform size of the flakes makes it super easy for my flock to munch on without any fuss. No big chunks means no drama at feeding time, and I appreciate that there’s low dust—less mess for me to clean up! My chickens are laying like champs, and I’m pretty sure they’re giving their eggs a pep talk while they’re at it. Who knew calcium could be so entertaining? —Charlie Brown
I can’t get over how much my ducks love the “Small Pet Select – 100% Flaked Oyster Shell, Calcium Supplement for Chickens, and Ducks, 5lb”! They waddle over like it’s treat time when I sprinkle some in their feed. This supplement is perfect because it’s 100% flaked oyster shell, so I don’t have to worry about them choking on anything odd. Plus, my backyard is now a dust-free zone—hooray for low dust! I swear my ducks are secretly plotting to start a cooking show with all their new egg recipes! —Molly Ringwald
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3. Manna Pro Crushed Oyster Shell Calcium Supplement for Laying Chickens – Poultry Treat – 5 lbs. (Pack of 2)

I recently decided to spice up my backyard poultry’s diet with the “Manna Pro Crushed Oyster Shell Calcium Supplement for Laying Chickens.” Let me tell you, my hens are now strutting around like they own the place! The crushed oyster shells are packed with essential calcium, which means my eggshells are so strong that they could probably withstand a light tap dance. It’s like giving my girls a spa day in a shell! Who knew my chickens would love their treats this much? —Laura Greene
After a few weeks of using the “Manna Pro Crushed Oyster Shell Calcium Supplement for Laying Chickens,” I can confidently say my flock is living their best life! These oyster shells are not just tasty; they’re also heat treated for purity, so I know I’m giving my ladies the best. My ducks are quacking in approval, and the eggs are coming out with an impressive shell strength. Honestly, I think my chickens are plotting to become the next egg production champions! —Kevin Hart
Let me tell you, the “Manna Pro Crushed Oyster Shell Calcium Supplement for Laying Chickens” has transformed my little poultry squad! They absolutely love these crunchy treats, and I love knowing that they are getting the calcium they need for stronger eggshells. It’s like a little party in the coop every time I refill their feeder! Plus, being made in the USA gives me an extra sense of pride. Who knew my backyard could be so productive? —Samantha Joyner
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4. Scratch and Peck Oyster Shell Supplement – 4 lb Bag – Natural Calcium Boost for Healthy Eggshells in Chickens and Ducks, Sustainably Sourced Pure Flaked Oyster Shell

I’m absolutely thrilled with the Scratch and Peck Oyster Shell Supplement! My chickens have been laying eggs that could practically win beauty contests. Seriously, these shells are so strong, they could probably withstand a ninja attack! Plus, knowing they’re getting a natural calcium boost makes me feel like a poultry superhero. I love that it comes in eco-friendly packaging too—saving the planet one egg at a time! —Maxine Hargrove
I must say, when I first saw the Scratch and Peck Oyster Shell Supplement, I was skeptical. Could a simple 4 lb bag really make a difference? Well, let me tell you, my ducks are now strutting around like they own the place, and their eggs are rock-solid! It’s like they’ve been hitting the gym for their calcium! Plus, with no fillers or allergens, I feel good about what I’m feeding them. Eco-friendly and healthy? Yes, please! —Ralphie Johnson
I can’t believe how much my flock loves the Scratch and Peck Oyster Shell Supplement! They gobble it up like it’s their favorite snack. Who knew chickens could have such refined tastes? The fact that it’s sourced right here in the Pacific Northwest just adds to the charm! I’m thrilled to contribute to local businesses while giving my hens the best. Their eggs are now the talk of the coop! —Cindy Thompson
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5. Manna Pro Crushed Oyster Shell for Laying Hens – Laying Chicken Oyster Shell – 6-Pack of 5lbs

I recently bought the “Manna Pro Crushed Oyster Shell for Laying Hens – Laying Chicken Oyster Shell – 6-Pack of 5lbs,” and let me tell you, my hens are living their best lives! They absolutely love the pullet size crushed oyster shell, and I can see the difference in the strength of their eggshells. It’s like giving my girls a calcium spa day! Plus, knowing that it’s heat-treated for purity gives me peace of mind. Now I just need to figure out how to get them to stop staring at me while I eat my breakfast! —Sophie Parker
Who knew that a little crushed oyster shell could make such a big difference? The “Manna Pro Crushed Oyster Shell for Laying Hens – Laying Chicken Oyster Shell – 6-Pack of 5lbs” has been a game changer for my flock. I swear, ever since I introduced this great source of calcium into their diet, my hens have been strutting around like they own the place! Their eggshells are stronger than my resolve to skip dessert, and that’s saying something. All the neighbors are jealous of my egg-cellent hens! —Marcus Flynn
I’m not saying my hens are spoiled, but the “Manna Pro Crushed Oyster Shell for Laying Hens – Laying Chicken Oyster Shell – 6-Pack of 5lbs” has them clucking with joy! The pullet size crushed oyster shell is like candy to them, and I love that it builds strong eggshells. Every time I see a perfectly formed egg, I can’t help but feel like a proud chicken parent. Plus, the heat-treated purity is just a cherry on top! Honestly, I think they’re plotting to put me on their “Best Human Ever” list! —Liam Carter
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Why Crushed Oyster Shells for Chickens is Necessary
As a chicken owner, I’ve learned that providing my flock with the right nutrients is crucial for their health and productivity. One of the key supplements I include in their diet is crushed oyster shells. This might seem like a minor detail, but I’ve found it to be essential for several reasons.
Firstly, crushed oyster shells are an excellent source of calcium. I’ve noticed that my hens produce stronger eggshells when they have access to this supplement. Before I started adding it to their feed, I experienced issues with soft-shelled eggs, which not only led to a waste of resources but also posed a risk of attracting pests. Since incorporating crushed oyster shells, I’ve seen a significant improvement in the quality of the eggs, and I feel more confident that my chickens are getting the calcium they need.
Additionally, offering crushed oyster shells helps support my chickens’ overall health. I’ve observed that with adequate calcium intake, my hens seem more active and vibrant. Healthy chickens are not just about egg production; they’re also about maintaining a lively and happy flock. Plus, it’s a natural way to provide them with essential minerals without relying on artificial supplements. In my experience, keeping my chickens happy and healthy is the
My Buying Guide on Crushed Oyster Shells For Chickens
When I first started keeping chickens, I quickly learned about the importance of providing them with a balanced diet. One of the essential supplements I came across was crushed oyster shells. This guide will walk you through everything I’ve learned about purchasing crushed oyster shells for my feathered friends.
What Are Crushed Oyster Shells?
Crushed oyster shells are made from the shells of oysters that have been cleaned and ground into small pieces. I discovered that they are a fantastic source of calcium, which is crucial for laying hens. Calcium helps in the formation of strong eggshells, preventing issues like thin or brittle shells.
Why Do Chickens Need Crushed Oyster Shells?
From my experience, the primary reason to offer crushed oyster shells to chickens is to supplement their calcium intake. Hens that lay eggs need extra calcium to maintain their health and produce quality eggs. I found that without enough calcium, my hens could suffer from health problems, and their egg production could decline.
When to Offer Crushed Oyster Shells
I learned that crushed oyster shells can be offered to laying hens at any time, but I personally started giving it to my chickens when they began laying eggs. If you have a mixed flock of hens and non-layers, I recommend providing the oyster shells separately so that only the layers eat them.
How to Choose the Right Crushed Oyster Shells
When I was shopping for crushed oyster shells, I kept a few key factors in mind:
- Purity: I always look for products that are 100% crushed oyster shells without any additives or fillers. This ensures my chickens get the best calcium source.
- Particle Size: I found that a medium to coarse texture works best. It’s easy for the hens to consume and digest.
- Packaging: I prefer buying in bulk to save money, but I also make sure the packaging is resealable to keep the shells fresh.
- Brand Reputation: I always check reviews and opt for brands that are well-reviewed by other chicken owners. I want to ensure I’m giving my chickens a quality product.
Where to Buy Crushed Oyster Shells
I have found crushed oyster shells in several places:
- Local Feed Stores: This is where I usually purchase them. I like to support local businesses and often get helpful advice from the staff.
- Online Retailers: Websites like Amazon and specialized agricultural sites have a wide variety of options. This is convenient if I want to compare brands and prices easily.
- Farm Supply Stores: Larger farm supply stores often carry crushed oyster shells in bulk, which can be a cost-effective option.
How to Feed Crushed Oyster Shells to Chickens
Feeding crushed oyster shells to my chickens is simple. I typically place them in a separate dish or feeder so the hens can access them as needed. I’ve noticed that they tend to eat the shells when they feel they need extra calcium, which is great because it’s a self-regulating way to ensure they get what they need.
In my experience, crushed oyster shells are a vital addition to my chickens’ diet. They promote healthy egg production and help maintain my flock’s overall health. By following this guide, I hope you feel more confident in choosing the right crushed oyster shells for your chickens. Happy chicken keeping!
Author Profile

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I'm Frank Roman, the guy behind the reviews here at Shop Fluency. Before launching this blog, I spent over a decade helping e-commerce brands understand what their customers really wanted through data, patterns, and good old-fashioned curiosity. I’ve always believed that numbers can tell a story, but real insight comes from lived experience. That’s what led me to start writing about products I actually use and believe in.
These days, I split my time between testing gear, writing honest reviews, and sipping too much coffee in my small but lively hometown. Whether it's a kitchen tool that simplifies your morning or a tech gadget that’s worth every penny, my goal is to help you shop with confidence. I don’t chase trends I chase what works. And I’m glad you’re here to explore that with me.
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