Does the Graders Accuracy Explain the Increase in Called Yield Grades 4’s and 5’s?

W. Darrell Busby; Maro Ibarburu; John D. Lawrence

doi:10.31274/ans_air-180814-410

Beef

Does the Graders Accuracy Explain the Increase in Called Yield Grades 4’s and 5’s?

Authors: W. Darrell Busby (Iowa State University) , Maro Ibarburu (Iowa State University) , John D. Lawrence (Iowa State University)

Abstract

Carcass data from more than 38 thousand cattle was used to compare the called and measured yield grade in two different periods: before and after the slaughter plant incorporated another grader in the line to improve grading accuracy. The study shows that the graders accuracy significantly increased. The higher accuracy effected all yield grades, but most notably resulted in more called yield grade 4 and 5 carcasses. This analysis may be a forecast of the impact of instrument grading that will be more accurate than previously called grades.

Keywords: ASL R2192

How to Cite: Busby, W. D. , Ibarburu, M. & Lawrence, J. D. (2007) “Does the Graders Accuracy Explain the Increase in Called Yield Grades 4’s and 5’s?”, Iowa State University Animal Industry Report. 4(1). doi: https://doi.org/10.31274/ans_air-180814-410