525HO129 Triple-Hil
Black Eagle
aAa: 624153 | BC: A1/A2 | KC: AB
Reg: 840003140786326 | DOB: 11/21/2016
Pedigree Analysis
Black Eagle is a fancy Black Ice son from a EX Durham daughter that we developed in the Triple-Hil herd.
Behind this Durham daughter is the well-known “E” family at Ridgedale that produced the first three generations of EX-95 point cows in history. The Estelle family has produced some great sires including Ridgedale Escalate, a solid-breeding Outside son from Taurus Services.
Black Ice, a Canadian Juror son from a Stardust that has repeatedly impressed us when we travel the country with beautiful mature daughters that are still living in herds today.
Black Eagle is an impressive young black-hided bull from five EX dams.
His first milking daughters are just starting to calve in and we are excited to see what the next year holds for him.
| Sire: | Browndale Black Ice (VG) |
|---|---|
| Dam: | D-V-C PHA Durham Eliza-ET (EX-90 4yr) |
| 2nd Dam: | Ridgedale Etta-ET (EX-91 2E) |
| 3rd Dam: | Ridgedale Estelle-ET (EX-95 3E) |
| 4th Dam: | Ridgedale Fond Example (EX-95 3E) |
| 5th Dam: | Ridgedale Quality Extra (EX-90 5yr) |
| 6th Dam: | Ridgedale SS Emmy (VG-87 6yr) |
| MILK | FAT% | FAT LBS. | PRO% | PRO LBS. | M. SPEED | NMS | TPI |
|---|---|---|---|---|---|---|---|
| -2,072 | 0.05% | -74 | -0.03% | -74 | 6.6 | -708 | 1,588 |
| MILK | FAT% | FAT LBS. | PRO% |
|---|---|---|---|
| -2,072 | 0.05% | -74 | -0.03% |
| PRO LBS. | M. SPEED | NMS | TPI |
|---|---|---|---|
| -74 | 6.6 | -708 | 1,588 |
| SCS | DPR | CCR | HCR | PL | LV |
|---|---|---|---|---|---|
| 2.81 | 0.4 | -1.3 | -1.4 | 1.2 | 1.1 |
| — | 82%R | 83%R | 59%R | 84%R | 56%R |
| SCS | DPR | CCR |
|---|---|---|
| 2.81 | 0.4 | -1.3 |
| — | 82%R | 83%R |
| HCR | PL | LV |
|---|---|---|
| -1.4 | 1.2 | 1.1 |
| 59%R | 84%R | 56%R |
| PTAT | UDC | FLC |
|---|---|---|
| -0.84 | -1.85 | 0.58 |
| SIRE CALV. EASE | DAU. CALV. EASE |
|---|---|
| 3.1 | 2.9 |
| 89%R | 78%R |
comparable PTAT bulls
305-AA is the standardized milk, fat, and protein yield estimate used by CDCB to compare cows of different ages, parities, breeds, and regions on equal footing. According to CDCB and USDA AGIL, it represents “a 305-day lactation record at 36 months of age” — hence “Average Age,” or AA.
It replaced 305-ME (Mature Equivalent) in June 2024 for published records and was implemented in the calculation of CDCB genetic evaluations effective August 13, 2024. ME had been the standard since 1935.
How it is calculated
The new factors are applied as a series of separate multipliers for age-parity, season, previous days open, and milking frequency. Lactation records are adjusted upward or downward to what the cow would have been expected to produce as a 36-month-old, milked twice daily for 305 days.
Key adjustments include:
- Age-parity: Standardized to 36 months rather than ME’s mature range of 61–86 months depending on breed.
- Season/climate: Seasonal effects are now estimated within five regions defined by the average climate zone scores for each state, replacing the old three east-to-west geographic regions.
- Milking frequency: Still standardized to 2x milking, unchanged from ME.
- Previous days open: The methodology for this adjustment is also unchanged from ME.
Sources: CDCB/USDA AGIL, “August 2024 Evaluations: What’s New?” (July 11, 2024); CDCB, “Introducing 305-AA: The New Standardized Yield Measurement” (June 21, 2024).




