Track Weaning Weights. Compare Year Over Year.
205-day adjusted weights calculated automatically. Compare bulls, compare years, identify genetic trends. Make better breeding decisions.
Questions? Email: pavan@cattleos.com
Weaning Weight Analysis Problems
The Problem
- ✗Calves weaned at different ages - hard to compare
- ✗Calculating 205-day adjusted weights manually is tedious
- ✗Can't easily compare bulls across years
- ✗Don't know if genetics are improving
- ✗Proving genetic progress to buyers is difficult
The CattleOS Solution
- 205-day adjusted weights automatic
- Compare bulls, cows, years side-by-side
- Genetic trends graphed over time
- Heifer vs. steer comparisons
- Reports for bull sales and marketing
"Seeing 10-year weaning weight trends convinced me to keep our best bull calves. Now selling bulls for $5,000+ with data to back it up."
Susan W.
Registered Red Angus, Wyoming - 180 cows
How It Works
205-Day Adjustment
Weaned at 180 days? 240 days? CattleOS adjusts all calves to 205 days for fair comparison. Industry-standard formula.
Bull Comparisons
Average weaning weight by sire. See which bulls produce the heaviest calves. Compare to EPDs and birth weights.
Genetic Trends
Graph weaning weights over 5, 10, 15 years. See if your genetics are improving. Prove progress to buyers.
Common Questions
How do you calculate 205-day adjusted weaning weight?
((Actual Weight - Birth Weight) ÷ Age in Days × 205) + Birth Weight. CattleOS calculates automatically for every calf.
Can I compare heifers and steers separately?
Yes. View adjusted weights for steers, heifers, or combined. Bulls typically produce heavier steer calves, so separate analysis is important.
What if I don't have birth weights for all calves?
You can use breed average birth weights for adjustment calculation. More accurate with actual birth weights, but adjustment still works without them.