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A new method for calculating the volume of primary tissue types in live sheep using computed tomography scanning
Journal article   Peer reviewed

A new method for calculating the volume of primary tissue types in live sheep using computed tomography scanning

C.L. Alston, K.L. Mengersen and G.E. Gardner
Animal Production Science, Vol.49(11), pp.1035-1042
2009
DOI: https://doi.org/10.1071/AN09038
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Abstract

Interest in the use of computed tomography (CT) scanning in animal experimentation has increased markedly over the last decade due to the benefits of studying tissue in live subjects over time. In these experiments, the non-carcass components of the scan are removed from the collected data, allowing scientists to study the carcass of a live animal without the need to slaughter the individual. However, there is not yet a consensus regarding the most appropriate manner in which to convert the CT numbers into a meaningful estimate of area, volume or proportion of tissue present in a carcass at the time of scanning. In this paper we use a Bayesian mixture model to estimate the area of each of three tissue types of interest, fat, muscle and bone present in individual CT scan slices. We then use the Cavalieri principle to estimate the volume and proportion of the carcass attributable to each of these tissues. The approach is validated by analysis of experimental sheep carcasses.

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Collaboration types
Domestic collaboration
Citation topics
3 Agriculture, Environment & Ecology
3.51 Dairy & Animal Sciences
3.51.206 Meat Quality
Web Of Science research areas
Agriculture, Dairy & Animal Science
ESI research areas
Agricultural Sciences
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