Anhydrous Magnesium Sulfate (MgSO₄) as a Feed Additive BY:Binny

1. Introduction

Anhydrous magnesium sulfate (MgSO₄) serves as an essential mineral supplement in animal nutrition, providing bioavailable magnesium and sulfur. This document outlines its applications, dosage guidelines, and safety protocols for feed manufacturers.

2. Key Nutritional Functions

2.1 Magnesium Benefits

Bone development & neuromuscular function

Cofactor for 300+ enzymatic reactions

Prevention of hypomagnesemia (grass tetany in ruminants)

2.2 Sulfur Benefits

✓ Methionine/cysteine synthesis

✓ Keratin production (hooves, feathers, wool)

3. Species-Specific Applications

Animal Category Purpose Optimal Inclusion Rate

Dairy Cattle Prevent lactation tetany 0.5-1.5% of DM

Poultry Improve eggshell thickness 0.1-0.3% of feed

Swine Reduce stress-related mortality 0.05-0.2%

Aquaculture Osmoregulation support 0.3-0.5g/kg feed

4. Comparative Analysis of Magnesium Sources

Property Anhydrous MgSO₄ MgO Mg Citrate

Mg Content 20.2% 60.3% 8.7%

Bioavailability ★★★★☆ ★★★☆☆ ★★★★★

Cost (USD/kg) ★☆☆☆☆ ★★★☆☆ ★★★★★

Best For General livestock Ruminants Premium feeds

5. Quality & Safety Protocols

5.1 Storage Requirements

• Moisture-proof packaging

• Ambient temperature <25°C

• Shelf life: 24 months

5.2 Heavy Metal Limits

Parameter Maximum Level

Arsenic (As) ≤3 mg/kg

Lead (Pb) ≤10 mg/kg

Cadmium (Cd) ≤0.5 mg/kg

6. Regulatory Compliance

 GB 29207-2012 (China)

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