Published online by Cambridge University Press: 20 November 2017
Computer tomography (CT) has the potential to measure body composition and form in live farm animals accurately and objectively in ways not possible with longer established assessment methods. Preliminary reports (Young, Logan, Nsoso and Beatson, 1996) verified that this is so but concluded that registration errors and subjective interpretation of tissue boundaries during image analysis affect accuracy. However, their study did not allow an assessment of the relative significance of these effects. The trial reported here was designed to quantify such effects by determining the repeatability of CT scan measurements.