High Purity Feed Grade Magnesium Oxide
- Model
- MgO: 85%min, 90%min, 95%min
Item specifics
- Categories
- Magnesium Oxide
- Product name
- Magnesium Oxide
- Color
- Off-White
- Packing
- 25,50,1000,1250kg PP neutral bag
- Loading
- 20-27mt/20fcl
- OEM Packing
- accepted
- CAS No.
- 1309-48-4
- Delivery time
- within 20 days after payment receipt
- Free sample
- yes
Review
Description

What is Feed Grade Magnesium Oxide
Feed Grade Magnesium Oxide (MgO) is a specialized form of magnesium oxide that meets strict quality and safety standards for use in animal feed. It serves as a nutritional supplement to provide magnesium, an essential mineral required for various physiological functions in livestock, poultry, and other animals.

Core Features
1. High Purity & Safety
Low Contaminants: Must meet strict limits for heavy metals (lead, cadmium, arsenic, mercury) and other harmful substances.
No Toxic Additives: Free from harmful chemicals unsuitable for animal consumption.
2. Optimal Bioavailability
Highly Absorbable: Processed to enhance magnesium absorption in the digestive tract.
Suitable for Different Species: Effective in ruminants (cows, sheep), poultry, swine, and aquaculture.
3. Consistent Physical Properties
Controlled Particle Size: Fine, uniform particles for even distribution in feed mixes.
Good Flowability: Prevents caking and ensures easy handling in feed production.
Feed Grade Magnesium Oxide
Feed Grade Magnesium Oxide
Core Specifications
· 98%+ MgO Purity
· 200-400 Mesh Adjustable
· ISO 22000 & HACCP Certified
Functions & Applications
▸ Acidosis Control
▸ Mineral Synergy
▸ Anti-caking Agent
Feed Grade Magnesium Oxide Powder:
Product: | Magnesium Oxide | |
CAS No.: | 1309-48-4 | |
Molecular Formula: | MgO | |
Molecular Weight: | 40 | |
HS CODE: | 251990 | |
Properties: | Solid | |
Specifications: | ||
Items | Unit | Specifications |
Purity as MgO | %,approximate | 85,90,95 |
Size | mm | 200mesh, 325mesh, 0.1-2mm, 0.3-2mm, other size can be customized. |
Appearance | We can adjust specifications according to your application and requirements | |
END |
Product Display:

Low heavy metals

High MgO conten

Different particle sizes
Application
Magnesium Oxide (MgO) Feed Grade is widely used in animal nutrition due to its essential role in magnesium supplementation and its functional benefits in livestock and poultry diets. Here are its key applications:
1. Magnesium Supplementation
- Corrects magnesium deficiency in ruminants (cattle, sheep, goats) and non-ruminants (poultry, swine, horses).
- Supports nerve function, muscle contraction, and enzyme activation.
- Helps prevent grass tetany (hypomagnesemia) in grazing cattle and sheep.
2. Rumen pH Stabilizer (Buffering Agent)
- Used in dairy cattle diets to maintain optimal rumen pH (reduces acidosis).
- Improves fiber digestion and feed efficiency.
- Enhances milk production and butterfat content.
3. Poultry & Swine Nutrition
- Supports bone development (works alongside calcium and phosphorus).
- Helps in eggshell quality in laying hens.
- May improve growth performance when balanced with other minerals.
4. Aquaculture Feed
- Added to shrimp and fish feeds to ensure proper magnesium levels for osmoregulation and skeletal health.
5. Pellet Binder (Secondary Function)
- Acts as a flow agent and binder in feed pellet production, improving durability.
Recommended Inclusion Rates
- Ruminants: 0.5–1% of total diet (higher for buffering effects).
- Poultry/Swine: 0.1–0.3% (as a magnesium source).
- Aquafeeds: Varies based on species requirements.
Quality Considerations
- Feed-grade MgO must have low heavy metal content (lead, arsenic, cadmium).
- High purity (≥85% MgO) and proper particle size for uniform mixing.
Applications & Solutions




Ruminants
Grass Tetany Prevention
Rumen pH Stabilizer (Buffering Agent)
Regulating rumen microbial activity
Ruminants
Improve the digestibility of roughage
Poultry
Eggshell Quality Enhancer
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FAQ
Why is Magnesium Important in Animal Feed?
Magnesium is a critical mineral that:
· Supports nerve and muscle function.
· Supports nerve and muscle function.
· Helps regulate enzyme activity and energy metabolism.
· Prevents grass tetany (hypomagnesemia) in ruminants.
· Improves rumen stability in dairy cows.
· Enhances bone development and eggshell quality in poultry.
Is MgO Used in Aquafeed?
Yes, it is included in shrimp and fish feed to:
· Maintain osmoregulation (salt balance).
· Support skeletal development.
· Prevent magnesium deficiency in high-stocking-density systems.
Does MgO Improve Feed Pellet Quality?
Yes! It acts as a flow agent and binder, reducing dust and improving pellet durability.