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| EFW formula | Authors | 95% Confidence Limit – % | %Mean BW deviation∗ Hadlock ‘84 | Standard deviation % of EFW # Hadlock ‘84 | Standard deviation % of EFW # Westerway |
|---|---|---|---|---|---|
| AC/BPD | Shepherd | 18 | 0.4 | 9.1 | 9.3 |
| HC/AC | Hadlock | 16 | 0.4 | 9.1 | 9.3 |
| AC/FL | Hadlock A | 16 | 0.3 | 8.2 | 8.1 |
| HC/AC/FL | Hadlock B | 15 | 0.3 | 7.6 | 7.7 |
| BPD/HC/AC/FL | Hadlock C | 15 | 0.3 | 7.5 | 7.9 |
| BPD/AC/FL | Hadlock D | 16 | 0.3 | 7.7 | 8.5 |
∗ % deviation = predicted weight‐actual weight/actual weight × 100. # average standard deviation across weight range
