--- product_id: 399994572 title: "Manna Pro Oyster Shell, 5-Pounds" brand: "manna pro" price: "143 zł" currency: PLN in_stock: false url: https://www.desertcart.pl/products/399994572-manna-pro-oyster-shell-5-pounds store_origin: PL region: Poland --- # Supports strong eggshell & skeletal health Optimized pellet size for steady calcium release Heat-treated oyster shell purity Manna Pro Oyster Shell, 5-Pounds **Brand:** manna pro **Price:** 143 zł **Availability:** ❌ Out of Stock ## Summary > 🥚 Crack the code to stronger eggshells and healthier hens! ## Quick Answers - **What is this?** Manna Pro Oyster Shell, 5-Pounds by manna pro - **How much does it cost?** 143 zł with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.pl](https://www.desertcart.pl/products/399994572-manna-pro-oyster-shell-5-pounds) ## 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 - • **Pure Calcium Power:** Heat-treated oyster shells ensure maximum purity and safety for your flock. - • **Precision Pellet Size:** Crushed to an ideal size for slow, steady calcium absorption—no more weak shells. - • **Self-Regulated Nutrition:** Allows hens to control their calcium intake naturally, optimizing egg quality. - • **Versatile for All Breeds:** Perfect for all life stages and breeds, supporting long-term poultry vitality. - • **All-Natural & Additive-Free:** No artificial preservatives—just pure, natural calcium for healthier birds. ## Overview Manna Pro Oyster Shell is a premium, heat-treated crushed oyster shell calcium supplement designed for laying hens. Its optimized pellet size promotes slow calcium absorption, supporting strong eggshell formation and skeletal health. Free from additives, it enables hens to self-regulate intake, enhancing egg quality and overall 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. ## Features - Pellet size crushed oyster shell - Great source of calcium - Builds strong eggshells - Heat-treated for purity - Provides calcium ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B000MD59TC | | Additional Features | Heat-treated for purity and calcium supplement for birds | | Age Range Description | All Life Stages | | Allergen Information | Celery Free | | Animal Food Diet Type | Raw | | Best Sellers Rank | #32,378 in Pet Supplies ( See Top 100 in Pet Supplies ) #518 in Bird Food | | Brand Name | Manna Pro | | Breed Recommendation | All Breed Sizes | | Container Type | Bag | | Customer Reviews | 4.7 4.7 out of 5 stars (15,133) | | Flavor | Unflavored | | Global Trade Identification Number | 00095668069629 | | Item Form | Pellet | | Item Type Name | Bird Food | | Item Weight | 5 Pounds | | Manufacturer | Manna Pro | | Manufacturer Part Number | 1000210 | | Model Number | 1000210 | | Number of Items | 1 | | Occasion | Birthday | | Product Benefits | Builds strong eggshells in birds | | Recommended Uses For Product | Poultry farming, Egg-laying | | Special Ingredients | Oyster Shell | | Specific Uses For Product | Outdoor | | Target Species | Fish | | UPC | 095668069629 | | Unit Count | 80 Milliliters | ## Product Details - **Age range (description):** All Life Stages - **Brand:** Manna Pro - **Flavour:** Unflavored - **Item form:** Pellet - **Specific uses for product:** Outdoor ## Images ![Manna Pro Oyster Shell, 5-Pounds - Image 1](https://m.media-amazon.com/images/I/613RXZ-jRtL.jpg) ![Manna Pro Oyster Shell, 5-Pounds - Image 2](https://m.media-amazon.com/images/I/613EHHrTYAL.jpg) ![Manna Pro Oyster Shell, 5-Pounds - Image 3](https://m.media-amazon.com/images/I/61VTLt5L38L.jpg) ![Manna Pro Oyster Shell, 5-Pounds - Image 4](https://m.media-amazon.com/images/I/61n7o6AfpNL.jpg) ![Manna Pro Oyster Shell, 5-Pounds - Image 5](https://m.media-amazon.com/images/I/61GnnI1wabL.jpg) ## 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. ## 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 --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.pl/products/399994572-manna-pro-oyster-shell-5-pounds](https://www.desertcart.pl/products/399994572-manna-pro-oyster-shell-5-pounds) --- *Product available on Desertcart Poland* *Store origin: PL* *Last updated: 2026-05-05*