Topics:
Animal Refresher, Poultry Science
Interpretation of Egg Shape Index (ESI)
A higher Egg Shape Index (ESI) indicates a ______ egg shape, while a lower ESI indicates a ______ egg shape:
- Rounded, Elongated — Correct Answer
- Elongated, Rounded
- Elliptical, Circular
- Circular, Elliptical
Explanation:
Correct Answer: Rounded, Elongated
ESI = (Width / Length) × 100. A higher ESI means the width is relatively large compared to the length, indicating a rounder egg. A lower ESI means the egg is narrower relative to its length, making it more elongated.
Practical Example
- If an egg has width = 40 mm and length = 54 mm → ESI = (40/54) × 100 = 74 → standard chicken egg shape.
- If ESI = 80 → width/length ratio is higher → rounder egg.
- If ESI = 65 → width/length ratio is lower → elongated egg.
ESI Across Species
| Species | ESI | Shape |
|---|---|---|
| Duck | 72 | Slightly elongated |
| Chicken | 74 | Standard oval |
| Quail | 78 | Slightly rounder |
Why Other Options Are Wrong
- Elongated, Rounded → reverse of the correct interpretation.
- Elliptical, Circular / Circular, Elliptical → these are not the standard terms used for ESI interpretation.
📚 About this Topic — Animal Refresher
This multiple choice question is from Animal Refresher, Poultry Science. It has 4 options with a detailed explanation of the correct answer. Practice more MCQs from Animal Refresher to strengthen your preparation.
