Topics:
Animal Refresher, Poultry Science
Duration of Cold Storage for Non-Oil-Coated Eggs
In the cold storage method of egg preservation, non-oil-coated eggs can be preserved for ______ months at 14°C and 90% R.H.:
- 4 months
- 6 months — Correct Answer
- 8 months
- 12 months
Explanation:
Correct Answer: 6 months
In cold storage at 14°C and 90% R.H., non-oil-coated eggs can be preserved for up to 6 months.
Why Non-Oiled Eggs Have a Shorter Shelf Life
- Without oil coating, the pores of the egg shell remain open.
- CO₂ gradually escapes → albumin pH rises → albumin quality deteriorates (lower Haugh unit).
- Moisture is lost over time → weight loss of egg increases → air cell enlarges.
- Microorganisms can potentially penetrate through unblocked pores.
Quality Deterioration Indicators Over Storage
- Decreasing Haugh unit (albumin quality falls).
- Decreasing yolk index (yolk flattens).
- Increasing air cell size.
- Rising internal pH of albumin.
Why Other Options Are Wrong
- 4 months → unnecessarily short; non-oiled eggs at proper cold storage last 6 months.
- 8 months → this is the duration for oil-coated eggs, not non-oiled ones.
- 12 months → exceeds the shelf life even for oil-coated eggs.
📚 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.
