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Alternative pork carcass evaluation techniques: I. Differences in predictions of value
M A Boland1, K A Foster, A P Schinckel
1Department of Agricultural Economics, Purdue University, West Lafayette, IN 47907, USA.
Journal of Animal Science
|March 1, 1995
Summary
Predicting pork carcass value is improved using advanced technologies. A combination of the Hennessy probe (PROBE) and electromagnetic scanner (EMS) measurements offered the most accurate prediction of wholesale and lean boneless pork values.
Area of Science:
- Animal Science
- Agricultural Economics
Background:
- Accurate carcass valuation is crucial for the pork industry.
- Variations in pork carcass composition and lean percentage necessitate precise evaluation methods.
Purpose of the Study:
- To compare the accuracy of different models in predicting pork carcass value.
- To evaluate the effectiveness of ruler, Hennessy probe (PROBE), and electromagnetic scanner (EMS) technologies for carcass valuation.
Main Methods:
- Determined dissected wholesale and lean boneless values for 154 pork carcasses across seven genotypes.
- Developed and compared four predictive models: ruler (RULER), PROBE, EMS1, and a combined PROBE and EMS1 model (EMS2).
Main Results:
- The combined PROBE and EMS1 model (EMS2) demonstrated the highest predictive accuracy for both wholesale (R² = .74) and lean boneless values (R² = .74).
- EMS2 also yielded the lowest residual standard deviation (RSD), indicating superior precision in value prediction compared to RULER, PROBE, and EMS1 alone.
Conclusions:
- A combination of probe and electromagnetic scanner measurements provides the most accurate prediction of dissected pork carcass value.
- Advanced carcass evaluation technologies significantly enhance the precision of wholesale and lean boneless value determination.