| Rank | Bull | APEX Score | Tier | Verdict |
|---|---|---|---|---|
| 1 | Newry Balance King K42 | 4.7 | Elite | STRONG ALIGNMENT |
| 2 | Binnowie Efficiency E18 | 4.5 | Elite | STRONG ALIGNMENT |
| 3 | Pavey Maternal Pride P09 | 4.3 | High-End | STRONG ALIGNMENT |
| 4 | Cluden Growth G55 | 4.1 | High-End | MONITOR |
| 5 | Lawsons Extreme L21 | 3.2 | Specialist | STEER PROGENY ONLY |
Why Lawsons Extreme L21 Assessed Lower
Despite strong growth EBVs and high percentile positions for 200-day and 400-day weight
Birth Weight EBV of +5.8 kg exceeds the heifer biological hard limit (+5.5 kg). Calving difficulty risk is unacceptable for heifer joinings and elevated for mature cows.
MCW of +112 kg places daughters well above optimum for self-replacing herds. Increased feed cost, later maturity, and reduced fertility efficiency are likely.
High growth stacked on weak calving ease creates antagonistic pressure. The genetic gain from growth is offset by increased calving intervention and calf loss risk.
Multiple antagonistic trait combinations detected: BW vs Calving Ease, Growth vs Fertility, Frame vs Body Condition. Combined penalty reduced final score significantly.
The BeefAI™ Difference
BeefAI™ does not reward extremes blindly. A bull with Top 1% growth but Bottom 10% calving ease is not an elite sire — it is a liability for self-replacing herds. Traditional assessment by single-trait percentile ignores the biological trade-offs that determine profitability.
BeefAI™ evaluates every bull against biological guardrails, antagonistic trait interactions, and breeding objective alignment. The result is a system-fit assessment you can trust — because it reflects how genetics actually work in a cowherd, not just on a spreadsheet.
Getting Your Catalogue into BeefAI™
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Assessed by the BeefAI™ APEX engine — Angus Percentile Excellence scoring with biological guardrails. Upload your own catalogue. Assess every bull in minutes.
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