hah i got it now I think thanks to your nice repro of Slide 16 (SIAF APRAS Strategy).
Each prawn larva (PL) still goes thru a 4-staged growout period totaling 13 weeks but they have to be transferred to a different tank (possibly from Building 1 to Building 2 to Building 3) so each tank in Building 1 will be free to be restocked with new larvae after the first stage of 3-4 weeks, average 3.7 weeks per restock or 14 cycles per year. Of the 600k stock they sell 52MT of 6gram prawn after Stage 1, then 163MT of 10gram prawn after Stage 2, then 253MT of 17gram prawn after Stage 3, totaling 468MT/cycle or 468MT x 14 cycles = 6552MT.
But I can't figure out what happens to the prawn after Stage 4 that lasts only 2-3 weeks and why the prawn size almost quadruples within the last 2-3 weeks, from 17 gm after Stage 3 (that lasts 3-4 weeks) to 66gm in Stage 4? Why prawn grows so fast in a much shorter period? And why the tonnage of 66gm prawn (Stage 4) doesn't get added to the 468 MT (Stage 1-3) total, especially if that large prawn size sure commands a higher ASP than the other small sizes? Anybody?
