Choose Alta G-STARS to fast forward your genetic progress!

Alta G-STAR sires are the newest, elite genetics available from Alta. They offer a wide variety of trait specialties to fit any customized genetic plan. With 70% reliability for production and conformation traits and 65% reliability for health traits you can have confidence using Alta G-STARS.

While each of our G-STAR sires is too young to have a daughter proof for production, health and conformation, some of these bulls have been included in breeding programs long enough to have confirmed pregnancies on farm.


We collect and analyze this sire fertility data from real DairyComp data in our partner herds. When we have gathered enough observations, we award our coveted high fertility CONCEPT PLUS designation to only those sires who most efficiently create pregnancies. G-STAR sires with no CONCEPT PLUS designation are either too new to have real fertility data collected, or are simply at an average level for fertility.

The case for selecting from the elite genomic-proven G-STAR sire line-up is clear. These bulls are chosen to perform in the world’s most progressive environments and provide the most potential to fast forward your herd’s genetic merit.