New Proofs – New Sires

Balance and Diversity!

STgenetics released 33 Holstein sires following the December 2025 Genetic Evaluations. These sires averaged +3401 GTPI and +999 NM$, providing a well-balanced portfolio of diversity being sired by 18 different bulls. Included in this group are:

  • 24 sires > +150 CFP
  • 21 sires > +3.0 PL and +.49 CC
  • 29 sires positive for UDC
  • 2 Slick sires
  • 2 Polled Sires
  • 2 Red Carriers


All these new release sires are available in Ultraplus High Purity™, the most innovative and fertile female-sorted semen, with 96-97% gender accuracy.

To view full information in PDF format, please click blue button "Open File" below.