







🥚 Elevate your flock’s eggshell game with nature’s pure calcium boost!
Manna Pro Crushed Oyster Shell is a premium, heat-treated calcium supplement designed for laying poultry. Made from a blend of crushed oyster shells and coral calcium, it provides a slow-release, highly digestible source of calcium that supports strong eggshell formation and overall bird health. Suitable for all laying birds, this 5 lb bag offers a clean, natural mineral feed trusted by backyard and commercial poultry keepers alike.















| ASIN | B000MD59TC |
| ASIN | B000MD59TC |
| Age Range Description | All Life Stages |
| Best Sellers Rank | #2,263 in Pet Supplies ( See Top 100 in Pet Supplies ) #20 in Bird Food |
| Brand Name | Manna Pro |
| Breed Recommendation | All Breed Sizes |
| Color | Coral |
| Customer Reviews | 4.7 4.7 out of 5 stars (15,765) |
| Date First Available | January 2, 2007 |
| Date First Available | January 2, 2007 |
| Directions | Layers: Feed Manna Pro Oyster Shell to layers free choice in a separate feeder, or add 1 lb. to 20 lbs. of layer feed. Pullets: Feed Manna Pro Oyster Shell to pullets starting at 18 weeks of age and continue feeding through the entire lay period. |
| Is Discontinued By Manufacturer | No |
| Item Dimensions LxWxH | 4 x 8.33 x 11.5 inches |
| Item Package Dimensions L x W x H | 10.85 x 7.95 x 3.64 inches |
| Item Weight | 5 Pounds |
| Item model number | 1000210 |
| Item model number | 1000210 |
| Manufacturer | TV Non-Branded Items (Pets) |
| Manufacturer | TV Non-Branded Items (Pets) |
| Manufacturer recommended age | 1 month and up |
| Model Name | Manna Pro Crushed Oyster Shell Calcium Supplement |
| Number of Items | 1 |
| Product Dimensions | 4 x 8.33 x 11.5 inches; 5 Pounds |
| Size | 5 Pound (Pack of 1) |
| Specific Uses for Product | Outdoor |
| Style | Oyster Shell |
| Target Audience Keyword | Birds, Chickens, Ducks, Geese, Poultry, birds |
C**S
Great Supplemental calcium
Chickens love this stuff and it serves it's purpose.
K**N
Would buy again
Great product and value easy to use for health care digestion appearance was good
K**U
Good product
happy chickens and ducks makes for good egg shells
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!
S**E
My hens don’t like it
My hens were molting and needed more calcium. I am not sure if they like this. It looks like very small white gravel. I put it in a bowl and it doesn’t seem like they are eating it. I have taken to sprinkling it in the chickens run. The hens maybe setting it. I just think it’s not as chewable as they would like. It appears to be of good quality. My hens are just picky. They won’t even eat earthworms.
P**M
Great product!
Works great for my organic fertilizer blend for bulbs!
A**S
.
Mixed in with chicken feed and saw an egg shell improvement right away.
G**E
Great for chickens
I put the whole bag in a separate chicken feeder. My chickens eat it as they desire.
N**I
It’s so much bigger than I expected My chickens haven’t touched it yet
A**K
Para fortalecer cascaron de blanquillo de gallina y aves de distribución sencilla ya sea solo o en el alimento combinando
A**A
Al principio no lo comía porque le costaba trabajo desbaratarlo, pero lo moli un poco y le gusta mucho. Esta poniendo buenos huevos
Trustpilot
1 week ago
1 month ago