IMAGE ANALYSIS OF BEEF
Repeatability of Image Analysis. Repeatability esti- mates for predicted RPYD (R = .99) and predicted SLA (R = .99) were very high, which indicated that the process of collecting and analyzing the images was
ity, and USDA yield grade, a subjective estimate of carcass composition. Even though USDA yield grade is
1975; Jones et al., 1990; Shackelford et al., 1995), producers continue to distrust use of yield grade in
At present, beef carcass value is a function of USDA quality grade, a subjective estimate of meat palatabil-
pricing formulas because of its subjectivity. Thus, it is widely believed that development of an accurate, objective method of estimating carcass composition would facilitate value-based marketing (Value Based Marketing Task Force, 1990; Cross and Savell, 1994).
Figure 3. Comparison of the ability of image analysis and yield grade to predict retail product weight (n = 66).