Topics:
Animal Nutrition, Animal Refresher
Functions of Sodium Bentonite
Sodium bentonite is a:
- Pellet binder
- Mycotoxin binder
- Buffer
- All — Correct Answer
Explanation:
Correct Answer: All (Pellet binder + Mycotoxin binder + Buffer)
Sodium bentonite is a highly versatile feed additive with three main functions: (1) Pellet binder — its high swelling capacity improves pellet cohesion; (2) Mycotoxin binder — its large surface area and negatively charged layers adsorb aflatoxins and other mycotoxins in the GIT; and (3) Rumen buffer — helps maintain rumen pH in high-concentrate diets.
Functions of Sodium Bentonite
| Function | Mechanism | Benefit |
|---|---|---|
| Pellet binder | High water absorption → swells → binds particles | Improved pellet durability (PDI) |
| Mycotoxin binder | Anionic clay layers adsorb mycotoxins (esp. aflatoxin) | Reduces mycotoxin bioavailability |
| Rumen buffer | Alkaline pH of bentonite neutralizes excess acid | Prevents sub-acute rumen acidosis (SARA) |
Other Mycotoxin Binders
- NH₃ / NH₄OH → treats aflatoxin in Groundnut cake (GNC).
- HSCAS (Hydrated Sodium Calcium Aluminosilicate) → highly specific aflatoxin binder.
- Modified glucomannans → broad-spectrum mycotoxin binders (Mycosorb).
Why Other Options Are Wrong
- Each function — pellet binder, mycotoxin binder, and buffer — is a legitimate and well-documented use of sodium bentonite, so All is the correct answer.
📚 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.
