1. What is As Fed to Dry Matter Conversion?

The As Fed to Dry Matter conversion is used in animal nutrition to calculate the nutrient content of feed after removing moisture. This is important because moisture content can vary significantly between different feed samples.

2. How Does the Calculator Work?

The calculator uses the following equation:

Where:

• \( As\ fed \) — Nutrient percentage in as-fed basis
• \( Moisture \) — Moisture content percentage
• \( DM \) — Dry matter percentage

Explanation: The equation accounts for the moisture content in the feed to determine the actual nutrient concentration on a dry matter basis.

3. Importance of Dry Matter Calculation

Details: Calculating dry matter is essential for accurate feed formulation, ration balancing, and comparing different feedstuffs on an equal basis.

4. Using the Calculator

Tips: Enter the as-fed percentage and moisture percentage. Moisture must be less than 100% for valid calculation.

5. Frequently Asked Questions (FAQ)

Q1: Why convert to dry matter basis?
A: Dry matter basis removes the variability caused by moisture content, allowing for accurate comparison of nutrient values between different feeds.

Q2: What's the difference between as-fed and dry matter?
A: As-fed includes moisture content, while dry matter represents the feed with all moisture removed.

Q3: When should I use dry matter values?
A: Always use dry matter values when formulating rations or comparing feed nutrient content.

Q4: What are typical moisture levels in forages?
A: Hay typically has 10-15% moisture, silage 60-70%, and fresh pasture 70-85%.

Q5: How does moisture affect feed value?
A: Higher moisture dilutes nutrient concentration, making the feed appear less nutritious on an as-fed basis.