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Repeatability of computer tomography scan measurements in sheep

Published online by Cambridge University Press:  20 November 2017

M.J. Young
Affiliation:
Lincoln University, Canterbury, 8150, New Zealand
N.P.W. Jay
Affiliation:
Lincoln University, Canterbury, 8150, New Zealand
N.B. Jopson
Affiliation:
AgResearch Invermay, Private Bag 50034, Mosgiel, New Zealand
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Extract

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.

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Programme
Copyright
Copyright © The British Society of Animal Science 1999

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References

Young, M.J.; Logan, C.M.; Beatson, P.R.; Nsoso, S.J. 1996. Prediction of carcass tissue weight in vivo using live weight, ultrasound or X-ray CT measurements. Proceedings of the New Zealand Society of Animal Production 56: 205211.Google Scholar