There is technical confusion for me to understanding how transferring trouts from one raceway to another raceway through sorting will(not) effect FCR amount in origin raceway and destination raceway , because when we transfer trout from one raceway to another one ,we add history of feeding of each of them(trouts) to destination raceway , so this factor should re-calculate for both of raceways ,

Is my theory for effecting of sorting to FCR re-calculation correct or wrong ?and if it is correct , how can we re-calculate FCR after sorting in origin and destination raceways?and if it is wrong , why?