Prediction of DEVCo cut weights from chilled ovine carcasses
using single-frequency bioelectrical impedance measurements
A. Jelenak, M. Marchello and R.D. Clarke
AgResearch, Ruakura Research Centre, Private Bag 3123, Hamilton,
New Zealand
Proceedings of the New Zealand Society of Animal Production.
2000 60: 126-128
Single-frequency bioelectrical impedance (resistance and
reactance) was measured from one hundred and thirteen chilled lamb
carcasses. The carcasses were later cut into the DEVCo cuts and every
cut was weighed. These cuts were: Legs, Loin, Rack, Shoulders, Shanks,
Flap, Breast and Neck. The bioelectrical impedance data, together with
carcass weight and temperature, were used to predict the weights of each
of the DEVCo cuts. The best prediction was for the DEVCo Legs cut
(adjR²= 0.945), and the worst prediction was for the DEVCo
Neck cut (adjR² = 0.369). The data analysis revealed carcass
weight to be the single best predictor of DEVCo cut weights, and that
adding the bioelectrical impedance data did not improve prediction
significantly.
Keywords: NZSAPAB;
Bioelectrical impedance; DEVCo cuts; yield.
Last Updated 12-07-2000
