---
product_id: 4312710
title: "Manna Pro Crushed Oyster Shell for Chickens, Calcium Supplement, 5 lb Bag"
brand: "manna pro"
price: "5994 som"
currency: KGS
in_stock: false
reviews_count: 10
url: https://www.desertcart.kg/products/4312710-manna-pro-crushed-oyster-shell-for-chickens-calcium-supplement-5
store_origin: KG
region: Kyrgyzstan
---

# Premium oyster & coral calcium blend 5 lb convenient resealable bag Heat-treated for purity & safety Manna Pro Crushed Oyster Shell for Chickens, Calcium Supplement, 5 lb Bag

**Brand:** manna pro
**Price:** 5994 som
**Availability:** ❌ Out of Stock

## Summary

> 🐔 Elevate your flock’s egg game with nature’s calcium boost!

## Quick Answers

- **What is this?** Manna Pro Crushed Oyster Shell for Chickens, Calcium Supplement, 5 lb Bag by manna pro
- **How much does it cost?** 5994 som with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.kg](https://www.desertcart.kg/products/4312710-manna-pro-crushed-oyster-shell-for-chickens-calcium-supplement-5)

## Best For

- manna pro enthusiasts

## Why This Product

- Trusted manna pro brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Clean & Safe Nutrition:** Heat-treated oyster shells eliminate contaminants for worry-free feeding.
- • **Proudly Made in the USA:** Support local quality with a trusted, domestically sourced supplement.
- • **Tailored Calcium Intake:** Self-fed formula lets hens regulate their own calcium needs naturally.
- • **Backyard to Commercial Ready:** Perfect for all laying poultry breeds and flock sizes, from hobbyists to pros.
- • **Eggshell Fortification Power:** Slow-release calcium ensures consistently strong, crack-resistant eggshells.

## Overview

Manna Pro Crushed Oyster Shell is a premium, heat-treated calcium supplement designed for laying poultry. Its slow-release oyster and coral calcium blend supports strong eggshell formation and overall bird health. Packaged in a convenient 5 lb bag, it allows hens to self-regulate calcium intake, making it ideal for backyard flocks and commercial farms alike. Made in the USA with no artificial additives, it’s the trusted choice for enhancing egg quality and flock vitality.

## Description

Manna Pro Crushed Oyster Shell is a premium calcium supplement formulated specifically for laying hens to support strong, healthy eggshell formation and overall skeletal strength. This natural source of calcium comes from heat-treated oyster shells, which are ground to an optimal size for slow, steady absorption by your poultry. Offering Manna Pro Crushed Oyster Shell self-fed allows hens to self-regulate their calcium intake based on individual needs, reducing the risk of soft or thin-shelled eggs and promoting peak laying performance. This supplement is an essential addition to the diet of backyard chickens, especially those on grain or layer feed, as it provides supplemental calcium not always delivered in standard diets. It also helps maintain strong bones and supports long-term health in laying flocks. With no artificial additives or preservatives, Manna Pro’s Crushed Oyster Shell is safe, effective, and trusted by poultry keepers who prioritize nutrition and egg quality. Choose Manna Pro for all your backyard chicken needs.

Review: Very Very Solid Choice - Gets the job DONE. It is healthy for my girls, it doesn't alter their taste, it has great texture, it has zero odor, and is super easy to use. However, if you free range your flock, then you do not need this, as they will find there own calcium sources and most feeds already have it in them.
Review: Happy Chickens - Chickens peck it.

## Features

- 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: Made from a premium blend of crushed oyster shells and coral calcium, this supplement provides a high-quality, easily digestible source of calcium to support strong eggshells and overall health in laying poultry of all types.
- STRONGER EGGSHELLS WITH NATURAL CALCIUM: Crushed oyster shells provide a rich, slow-release calcium source for backyard hens, aiding proper eggshell formation, improving egg quality, and supporting overall health and laying performance in laying chickens.
- HEAT TREATED FOR PURITY: Our crushed oyster shells are heat-treated for maximum cleanliness, helping eliminate harmful contaminants, bacteria, and pathogens. This process ensures a clean, safe calcium source you can confidently feed to your poultry.
- 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

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B000MD59TC |
| Additional Features | Heat-treated for purity |
| Age Range (Description) | All Life Stages |
| Age Range Description | All Life Stages |
| Allergen Information | Celery Free |
| Best Sellers Rank | #4,415 in Pet Supplies ( See Top 100 in Pet Supplies ) #57 in Bird Food |
| Brand | Manna Pro |
| Brand Name | Manna Pro |
| Breed Recommendation | All Breed Sizes |
| Container Type | Bag |
| Customer Reviews | 4.7 out of 5 stars 15,894 Reviews |
| Flavor | Egg |
| Global Trade Identification Number | 00095668069629 |
| Item Form | Pellet |
| Item Type Name | Bird Food |
| Item Weight | 5 pounds |
| Manufacturer | TV Non-Branded Items (Pets) |
| Manufacturer Part Number | 1000210 |
| Model Number | 1000210 |
| Number of Items | 1 |
| Occasion | Birthday |
| Package Size Name | 5 lb Bag |
| Pet Type | Bird |
| Product Benefits | Supports strong eggshell formation in laying hens |
| Recommended Uses For Product | Poultry egg-laying support |
| Special Ingredients | Oyster Shell |
| Specific Uses For Product | Outdoor |
| Target Species | Chicken |
| UPC | 095668069629 |
| Unit Count | 5 Pounds |

## Product Details

- **Age Range (Description):** All Life Stages
- **Brand:** Manna Pro
- **Flavor:** Egg
- **Item Form:** Pellet
- **Specific Uses For Product:** Outdoor

## Images

![Manna Pro Crushed Oyster Shell for Chickens, Calcium Supplement, 5 lb Bag - Image 1](https://m.media-amazon.com/images/I/613RXZ-jRtL.jpg)
![Manna Pro Crushed Oyster Shell for Chickens, Calcium Supplement, 5 lb Bag - Image 2](https://m.media-amazon.com/images/I/613EHHrTYAL.jpg)
![Manna Pro Crushed Oyster Shell for Chickens, Calcium Supplement, 5 lb Bag - Image 3](https://m.media-amazon.com/images/I/61VTLt5L38L.jpg)
![Manna Pro Crushed Oyster Shell for Chickens, Calcium Supplement, 5 lb Bag - Image 4](https://m.media-amazon.com/images/I/61n7o6AfpNL.jpg)
![Manna Pro Crushed Oyster Shell for Chickens, Calcium Supplement, 5 lb Bag - Image 5](https://m.media-amazon.com/images/I/61GnnI1wabL.jpg)

## Available Options

This product comes in different **Size, Style** options.

## Questions & Answers

**Q: I have 2 adult hens, how much should they be given per day or week?**
A: Put a bowl or dish with it out for them. Hens are very in tune with their body and know when they need calcium. Refill as often as needed.

**Q: Is this too large for vermi-composting.  Will worms eat it?**
A: If worms eat oyster shell and calcium they would eat this, it's good quality rock.

**Q: Hi can i feed baby chiks?**
A: You don't want to feed this to baby chicks. Only when they start laying eggs. Only feed medicated chick feed. You can add chick and grit later when there are about 8 weeks old. But do not mix the grit in with their feed. The oyster shell is to help with the calcium needed to create eggs. So do not give that until they are laying.

**Q: Where is this from USA ?**
A: I can’t find anywhere on the package a country of origin. MannaPro is from St. Lewis, but the bag says manufactured for MannaPro.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Very Very Solid Choice
*by H***Y on June 5, 2026*

Gets the job DONE. It is healthy for my girls, it doesn't alter their taste, it has great texture, it has zero odor, and is super easy to use. However, if you free range your flock, then you do not need this, as they will find there own calcium sources and most feeds already have it in them.

### ⭐⭐⭐⭐⭐ Happy Chickens
*by T***Y on July 9, 2026*

Chickens peck it.

### ⭐⭐⭐⭐⭐ Works well for Ethel and Myrtle!
*by S***T on May 3, 2026*

I can tell when the hens are using this product! (No I didn't ask them.) The egg shells are much thicker and they seem a little healthier.

## Frequently Bought Together

- 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
- Manna Pro Chicken Grit with Probiotics – Crushed Granite Grit for Backyard Chickens, Supports Healthy Digestion and Gizzard Function, Ideal for Laying Hens and Small Flocks, 5 lb Bag
- Chicken Oyster Shell Feeder and Grit Feeder Combo

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**Shop now:** [https://www.desertcart.kg/products/4312710-manna-pro-crushed-oyster-shell-for-chickens-calcium-supplement-5](https://www.desertcart.kg/products/4312710-manna-pro-crushed-oyster-shell-for-chickens-calcium-supplement-5)

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*Product available on Desertcart Kyrgyzstan*
*Store origin: KG*
*Last updated: 2026-08-27*