Topics:
Animal Nutrition, Animal Refresher
Component NOT Included in ADF (Van Soest Method)
In the detergent method of forage analysis (Van Soest), Acid Detergent Fibre (ADF) does NOT include which of the following?
- Cellulose
- Lignin
- Silica
- Hemicellulose — Correct Answer
Explanation:
Correct Answer: Hemicellulose
Hemicellulose is soluble in acid detergent → goes into ADS (Acid Detergent Solubles), NOT into ADF.
| Fraction | Contents |
|---|---|
| NDF | Hemicellulose + Cellulose + Lignin + Silica |
| ADF | Cellulose + Lignin + Silica |
| ADS (= NDF − ADF) | Hemicellulose |
| NDS | Starch, sugars, proteins, pectin |
Key formula: NDF − ADF = Hemicellulose
📚 About this Topic — Animal Nutrition
This multiple choice question is from Animal Nutrition, Animal Refresher. It has 4 options with a detailed explanation of the correct answer. Practice more MCQs from Animal Nutrition to strengthen your preparation.
