Topics:
Animal Refresher, Poultry Science
Duration of Cold Storage for Oil-Coated Eggs
In the cold storage method of egg preservation, oil-coated eggs can be preserved for ______ months at 14°C and 90% R.H.:
- 4 months
- 6 months
- 8 months — Correct Answer
- 12 months
Explanation:
Correct Answer: 8 months
In cold storage at 14°C and 90% R.H., oil-coated eggs can be preserved for up to 8 months.
Why Oil Coating Extends Shelf Life
- Egg shell has 7,500–17,000 pores through which CO₂ and moisture escape and microorganisms can enter.
- Oil (mineral oil) applied to the shell seals these pores, slowing moisture loss and preventing bacterial contamination.
- This extends cold storage life from 6 months (non-oiled) to 8 months (oiled).
Comparison: Oil-Coated vs. Non-Oil-Coated in Cold Storage
| Type | Temperature | R.H. | Duration |
|---|---|---|---|
| Oil-coated eggs | 14°C | 90% | 8 months |
| Non-oil-coated eggs | 14°C | 90% | 6 months |
Why Other Options Are Wrong
- 4 months → insufficient; oil-coated eggs last longer.
- 6 months → this is the duration for non-oil-coated eggs.
- 12 months → exceeds even the extended oil-coated shelf life.
📚 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.
