Once again, Genosource Captain has demonstrated his supremacy, boosting his GTPI level to an impressive +3331 GTPI, and maintaining his position as the breed’s #1 daughter-proven GTPI bull. Right behind him, albeit with a gap of 110 points, is RMD-Dotterer SSI Gameday, coming in at +3221 GTPI. Completing the top three, we have Plain-Knoll Renegad Trooper, holding steady at +3201 GTPI.
Siemers Renegad Parfect also performed well, jumping to the 8th spot. He added 1,514 daughters to his index, bringing his total to +3121 GTPI, an increase of +77 GTPI. Coupled with a PTAT of +2.40, Parfect is now the #1 PTAT sire in this ranking within the top 100 International GTPI bulls.
On the genomic sire lists, Ocd Thorson Ripcord emerged as the leading GTPI sire over 12 months with a robust +3416 GTPI, paired with +1509 NM$. Following close behind, Progenesis Watchman holds the second spot at +3408 GTPI, and S-S-I Sheepster Mican rounds out the top three at +3401 GTPI.
- Top 100 TPI® International Bulls
- High Ranking Sire Report
- High Ranking TPI® Genomic Young Bulls – August 2024
- High Ranking DWP$ Genomic Young Females August 2024
- 12 months & NAAB-code – 08/24″>USA – GTPI – >12 months & NAAB-code – 08/24
- 12 months & NAAB-code – 08/24″>USA – Net Merit – >12 months & NAAB-code – 08/24
- USA – GTPI – Dtr Proven – 08/24
- 12 Months – 08/24″>USA – PTAT Bulls = >12 Months – 08/24
- 12 months & NAAB-code 08/24″>USA – Top *RC GTPI >12 months & NAAB-code 08/24
- 12 months & NAAB-code 08/24″>USA – Top R&W GTPI >12 months & NAAB-code 08/24
- 12 Mths – 08/24″>USA – Top R&W & *RC PTAT Bulls >12 Mths – 08/24
As you dive into the new genetic evaluations, it’s essential to understand how the implementation of 305-AA has influenced PTAs.
For Holsteins, there’s good news! An increase in Predicted Transmitting Ability (PTA) for Milk, Fat, and Protein results in a slight upward trend, adding about +10 to +15 NM$, depending on the bull group (genomic or proven).
Jerseys, however, have experienced a notable decline. Their PTAs for Milk, Fat, and Protein have dropped significantly (around -100, -6, and -6 pounds, respectively). This decrease translates into a reduction in NM$, averaging between -70 and -50 NM$.
Brown Swiss, Guernsey, and Ayrshire bulls, on the other hand, have remained relatively stable, with only minor fluctuations around zero.
The introduction of 305-AA (Average Age) stands out as the most significant change in the August 2024 evaluations. This new standardization for yield records has moved from the 305-ME mature equivalent to a 36-month average age. Age, parity, and season adjustment factors have been updated. Season adjustments are now based on five U.S. climate regions rather than the previous three, providing a more accurate reflection of environmental differences. Importantly, these new factors are breed-specific, meaning each breed has experienced different impacts from this change.
