1. Easy for mass egg production, handling, transportation and incubation. Facilitates elimination of poor quality and unfertilized eggs before supply.
2. Surface sterilization and hydrochloric acid treatment is more effective and uniform.
3. More accurate than sheet eggs for comparison of scientific data like individual yields, race-wise, yields, region and season-wise yields.
4. Different between sheet egg and loose egg production
Sheet egg production
5. Ordinary kraft sheets without starch coating are used for egg laying.
6. Kraft sheet used for egg laying is of 22.5 cm x 28 cm in size.
7. On each sheet 20 moths are left to lay eggs.
8. Cellules are placed over the moths to restrict the egg laying area.
9. Eggs stuck to sheets are supplied after surface sterilization and acid treatment.
10. Followed for P3, P2 and P1 production.
11. Looe egg production
12. Ordinary kraft sheets coated with starch are used for egg laying. Starch coated kraft sheet used for egg layings is of 65 cm x 95 cm in size.
13. On each sheet 250 to 300 moths are left to lay eggs.
14. Cellules are not used, but the moths are spread free on the sheet.
15. Eggs laid on the sheet are loosened, surface sterilized, acid treated, measured, packed in loose egg boxes and supplied.