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Care and storage of hatching eggs before
The document provides guidelines for proper care and storage of hatching eggs before incubation to ensure good quality chicks and egg production. Key steps include collecting eggs frequently from healthy breeding stock, cleaning the eggs and facilities, fumigating, grading by weight, and storing at specific temperatures and humidity while turning the eggs regularly for less than 7 days of storage. Pre-warming is also recommended to gradually adjust stored eggs to room temperature before incubation.
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Care and storage of hatching eggs before
- 1. Care and Storageof Hatching Eggs - Before incubation
- 2.
- 3. • Good qualityegg production 1. Collection 2. Cleaning 3. Fumigation 4. Grading 5. Storing 6. Incubation
- 4. 1. Collection ofeggs • From healthy well managed breeding stock – No vitamin deficiencies – No mineral deficiencies High hatchability
- 5. 2. Cleaning ofeggs • Layer pen – – Clean – Litter- renew frequently • Caged birds – Remove excreta tray frequently – Angled bottom – eggs roll outside
- 6. • Egg shell– avoid contamination of eggs – High velocity air – Brushes – Sand paper – Wet clothes •Do not use water ?? •If essential ??
- 7. 3. Fumigation • Disinfectantfume – 20 min • Proper gas concentration • Ventilate properly after fumigation •To fill the air sac with normal fresh air
- 8. 4. Collect eggs •3 – 5 times per day • At least 2 time • If Environmental temperature is high – collect more frequently Ensure proper cool down avoid undue effect on the embryo
- 9. 5. Handling • Vigorousshaking - Bad • Truck inside Temperature – 16 ‘C • High rotating – Bad • Non-stop Journey
- 10. 6. Grading • Accordingto the weight Small Medium 55- 60 g Large Jumbo
- 11. 7. Storing ofeggs • Have to consider - Duration - Temperature - RH - Orientation and positioning - Turning
- 12. 1. Duration – –Less than 7 days – If not - Reduce hatchability Increase Incubation time 2. Temperature - – Two types - whole storage 20-21 ‘C Pre Warming
- 13. 1. Relative Humidity- 75-85 % – High RH – High MO growth – Low RH - High evaporation - weight loss
- 14. 1. Orientation &Positioning – Broad side – upward ?? - Air cell 2. Turning – At least once -a- day – If not ???
- 15. 8. Pre -warming • Bringing back eggs from Storage Temperature Room Temperature • Pre-warming Temperature 23’C - !8 hr