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Categorization range created to measure the hepatopancreas status of P. vannamei postlarval stage 12.
| Score | B cells | Vesicles | Healthy tubules | Degradation tissue |
|---|---|---|---|---|
| 5 | >100 | <50 | >40 | 0 |
| 4 | 70–100 | >50 | 20–40 | 5% |
| 3 | 50–70 | >50 | 10 | 10% |
| 2 | 20–50 | >50 | 5 | 25% |
| 1 | <10 | >50 | 0 | >30% |
