Topics:
Animal Nutrition, Animal Refresher
Definition of Probiotics
Live cultures of non-pathogenic organisms which are administered orally is known as:
- Prebiotics
- Probiotics — Correct Answer
- Feed additive
- Feed supplement
Explanation:
Correct Answer: Probiotics
Probiotics are defined as live cultures of non-pathogenic (beneficial) microorganisms that are administered orally to improve gut health and microbial balance in the host animal.
Probiotics — Key Facts
- Definition: Live cultures of non-pathogenic organisms administered orally
- Mechanism: Competitive exclusion of pathogenic bacteria; improve gut microbiome balance
- Common organisms: Lactobacillus, Bifidobacterium, Saccharomyces cerevisiae, Bacillus subtilis
- Benefits: Improved feed conversion, reduced diarrhoea, enhanced immunity, reduced antibiotic use
Probiotics vs. Prebiotics vs. Feed Additives
| Term | Definition |
|---|---|
| Probiotics | Live non-pathogenic organisms given orally |
| Prebiotics | Non-digestible feed ingredients that selectively stimulate growth of beneficial gut bacteria (e.g., FOS, MOS) |
| Feed additives | Substances added to feed to improve quality, palatability, or preservation (broad category) |
| Feed supplement | Nutrients added in small amounts to meet specific deficiencies (vitamins, minerals) |
Why Other Options Are Wrong
- Prebiotics → non-digestible compounds (not live organisms) that feed beneficial bacteria
- Feed additive → broad category including antibiotics, enzymes, antioxidants, preservatives; not specifically live organisms
- Feed supplement → refers to nutrient supplementation (vitamins, minerals, amino acids); not live cultures
📚 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.
