Logo image
Back
Using dual energy X-ray absorptiometry to estimate commercial cut weights at abattoir chain-speed
Journal article   Peer reviewed

Using dual energy X-ray absorptiometry to estimate commercial cut weights at abattoir chain-speed

G.E. Gardner, F. Anderson, C. Smith and A. Williams
Meat Science, Vol.173, Article 108400
2021
DOI: https://doi.org/10.1016/j.meatsci.2020.108400
url
Link to Published Version *Subscription may be requiredView

Abstract

This experiment assessed the ability of an on-line dual energy x-ray absorptiometer (DEXA) installed at a commercial abattoir to determine commercial cut weights in lamb carcases at abattoir chain-speed. 200 lamb carcases were scanned using a DEXA that was trained to predict the computed tomography determined proportions of fat, lean, and bone. Models were then trained using hot carcase weight and, DEXA fat% value or GR tissue depth to predict cut weight. Results from validation tests of DEXA models demonstrated excellent precision for predicting cut weight, in most cases describing more than 85% of the variation, and RMSE values that represented between 5 and 13% of the average weight of each cut. For most cuts these weight predictions were superior to those informed by GR tissue depth. This precision was maintained upon validation. Additional analyses utilised pixel information from the fore, saddle, and hind sections of DEXA images. This further enhanced the predictive power of cut weight models.

Details

Metrics

110 Record Views
17 Times Cited - Web of Science

InCites Highlights

These are selected metrics from InCites Benchmarking & Analytics tool, related to this output

Citation topics
3 Agriculture, Environment & Ecology
3.51 Dairy & Animal Sciences
3.51.206 Meat Quality
Web Of Science research areas
Food Science & Technology
ESI research areas
Agricultural Sciences
Logo image