Topics:
Animal Nutrition, Animal Refresher
Nutritional Definition of Basal (Energy) Feeds
Basal feed or energy feed are the feed stuff that contain:
- CP > 20% & CF < 18%
- CP < 20% & CF > 18%
- CP < 20% & CF < 18% — Correct Answer
- None
Explanation:
Correct Answer: CP < 20% & CF < 18%
Basal feeds / Energy feeds are feedstuffs that have low crude protein (<20% CP) and low crude fibre (<18% CF), yet high energy density. They are the primary energy sources in animal rations, typically consisting of cereal grains and their by-products.
Feed Classification by Nutrient Profile
| Feed Type | CP % | CF % | Examples |
|---|---|---|---|
| Roughage | Variable | >18% | Straw, hay, silage |
| Basal/Energy feed | <20% | <18% | Cereal grains, brans, molasses |
| Protein supplement | >20% | <18% | GNC, soybean meal, fish meal |
Examples of Basal/Energy Feeds
- Cereal grains: maize, wheat, barley, oats, sorghum
- By-products: wheat bran, rice bran, molasses
- These have TDN >60% but CP <20% → energy-rich, protein-poor
Why Other Options Are Wrong
- CP > 20% & CF < 18% → this is the definition of protein supplement, not energy feed
- CP < 20% & CF > 18% → describes roughage or poor-quality forage; not energy feed
- None → incorrect; CP <20% and CF <18% is the established definition of basal/energy feed
📚 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.
