06/03/2026
CWJLS beef is up this week! Nice 28 day age on these bad boys! Tag 158
Yield Grade
With a 735 lb hot carcass weight, 0.75" backfat, and 10 sq. in. ribeye area, I can get much closer on the Yield Grade estimate.
Using the USDA Yield Grade formula:
Yield Grade = 2.50 + (2.5 × fat thickness) + (0.20 × KPH) + (0.0038 × HCW) − (0.32 × REA)
Assuming a typical 2.5% KPH:
Fat thickness = 0.75"
HCW = 735
REA = 10.0
KPH = 2.5
Estimated Yield Grade:
YG ≈ 4.0
Carcass Evaluation
Quality Grade
Marbling appears Low Choice to Average Choice
Estimated marbling score: Small 20–50
Likely grades USDA Choice
Yield Grade
Estimated YG 4.0
The biggest factor hurting cutability is the 0.75" backfat.
A 10 sq. in. ribeye on a 735 lb carcass is somewhat small, which also pushes the yield grade higher.
Show Carcass Perspective
For a junior livestock carcass contest:
Strengths
✅ Choice quality grade
✅ Attractive ribeye shape
✅ Good marbling distribution
✅ Moderate carcass weight
Weaknesses
❌ Excess external fat (0.75")
❌ Smaller ribeye area relative to carcass weight
If this steer had:
0.40–0.50" backfat instead of 0.75"
12–13 sq. in. ribeye
it would likely move into a YG 2–3 and score significantly better in most carcass competitions.
Overall, based on the photo and data provided, I'd call this carcass:
🥩 USDA Choice, Yield Grade 4
That's still a very marketable carcass with strong eating quality, but it carries more fat than packers generally prefer today.
Here is chat gpt information. It measured 10 sq in ribeye and a .75in fat cover.