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Response in PFEC between different indexes using EBV as selection criteria as the scaled economic value (EV) of TW was increased. The indexes compared were a benchmark index (black dot) where PFEC was excluded as both a selection criterion and as a goal trait (EV = 0), an index where PFEC was only included as a selection criterion (red dot), and an index where PFEC was included as both a selection criterion and goal trait (EV = −1) (green dots and line).
