Jetstream

April 2023

Sires Report

Mr Salvatore RC: Transformer of the Global Red Holstein Population

His early daughters – by now in their fourth lactation – have already produced 60,000 kg/130,000 lb milk. And in the meantime, his breeding influence in the international Red Holstein...

January 2023

Sires Report

BullTalk - January 2023

As of late, the lineup of sires in the absolute top from AI Total has grown significantly; in that abundant offering, we turn our attention here to the young Wet...

October 2022

Sires Report

Intriguing Sires DP - October 2022

‘Yolo is very popular; his semen is sold out every month, both sexed and conventional,’ says Roger Turner from Jetstream Genetics about the Bandares son Yolo, who with more than...

September 2022

Management

10 Years of Peak: A Constantly Evolving Genetic Program

The prefix Peak is now a constant on sire ranking lists, not just in the US but other countries too. The number of studs that include bulls bred by Peak...

March 2022

Management

Unique HI Overview: These are the 92 Most Sold Holstein Sires at AI Companies Worldwide

Who were the most sold Holstein sires in 2021? The answer follows here, in a unique overview with 92 bestsellers from 38 breeding organizations in thirteen different countries. As well...

January 2022

Management

Beta-casein A2A2: Extensive Supply of Elite Holstein Sires is Guaranteed

Beta-casein. More and more AI companies are including this trait prominently in their sire presentations. Reason: following New Zealand, Australia and Asia, also in North America and Europe, there is...

December 2021

Sires Report

From An American Dairyman: Suggestions for Sire Selection

An American Dairyman continues his series of contributions for Holstein International and now brings some interesting suggestions for sire selection. He also adds some actual sire names to his suggestions...

November 2021

Sires Report

Focus on... November 2021

Good conformation heritability is still a trait that a large portion of dairy farmers pay attention to. Bulls that separate themselves from the rest of the population but also improve...