Two different transducers, rather than the one described inthe published manuscript (J. Anim. Sci. 2004. 82:24282441),were used to evaluate carcasses with the Animal Ultrasound ServicesCarcass Value Technology (CVT) system (Animal Ultrasound Services[AUS] Inc., Ithaca, NY). Carcasses in Rep. 1 (n = 146) of theGenetics of Lean Efficiency project were evaluated with theCVT system with the model UST-5044 3.5-MHz, 17.2-cm transducer.Carcasses in Rep. 2 of the Genetics of Lean Efficiency projectand those in the NBS00 project (n = 102) were evaluated withthe CVT2 system with the model UST-5011 3.5-MHz, 12.5-cm transducer.In addition, measurements were made with the transducer placedlongitudinally between the 10th and last rib, approximately5.0 cm off the midline of the carcass, not 6.4 cm as describedin the manuscript. Reanalysis of the data collected by the AUSprocedure indicated that the accuracy of predicting the weightof carcass fat-free lean did not differ for the CVT (residualstandard deviation [RSD] = 3.45 kg) and CVT2 (RSD = 3.51 kg)transducers. The RSD for the AUS procedure in the publishedmanuscript was 3.46 kg.