Company News

Roy G. Snyder, Father of A.I., Passes Away

It is with heavy hearts that Semex announces the passing of one of our founding fathers, Roy G. Snyder.

Commonly referred to as the ‘Father of A.I.,’ Roy’s life story is a testament to the modern dairy industry. Born in 1915 and raised on a dairy farm in Waterloo, Ontario, Roy’s experiences with dairy cattle breeding were his life’s passion and remain unmatched in our industry. Roy served A.I. in nearly every capacity possible, from technician to AI centre manager, as well as chairman of several influential associations including Chairman of the Semen Marketing Committee and Secretary-Manager of the Ontario Association of Animal Breeders.

Through this work, Roy saw the Canadian and global A.I. industry’s potential. After the first export of frozen semen to be flown overseas from Canada to Germany’s University of Munich was made in 1959, Roy followed up with a visit in 1964. He wanted to see these daughters for himself, and reported that their milk production far exceeded the herd average.

As frozen semen exports grew so did Roy’s involvement, overseeing the doubling of exports each year as he became more involved in promotion. This work culminated in one event that would change the A.I. industry’s global landscape, the formation of Semex’s precursor Semex Canada. In his book, Fifty Years of Artificial Insemination in Canada 1934-1984, Roy stated, “One noteworthy day in my career was May 8, 1974, when Semex Canada became a reality.”

“Roy Snyder was a pioneer, and we are all better for having his influence and vision. He is the forefather of Semex and at 99 years of age, Roy continued to take great interest in ... Read More...

Genomax Lineup Grows With New Supersire Son

Genomic testing over 6000 young sires worldwide nets impressive results for Semex's industry-leading Genomax™ lineup. Designed to deliver a consistent source of the world's leading genomic young sires, this program is home to some of the world's most famous and profitable genomic young sires, including the international sensation 0200HO06480 Val-Bisson Doorman and breed-leading progeny proven sires such as Facebook and Numero Uno.

Available now worldwide through this lineup is another outstanding individual bred to deliver profitable production, 0200HO07846 RH Superman (Supersire x Man-O-Man).

A HealthSmart™ and Robot Ready™ sire, Superman is one of Supersire's top sons, ranking as his #7 GTPI son at +2589 with breed-leading +95 PTAF and an extreme +807 NM$. Semex clients will appreciate he ranks as our #1 Supersire, NM$ and PTAF sire with an impressive 162 lbs combined Fat and Protein.

Like all Semex sires, Superman hails from an outstanding maternal line. His dam is a VG-85 Man-O-Man from Willsbro Baxter Pammy VG-87 and then Windy-Knoll-View Pammy the EX-95 Durham from the famous brood cow EX-95 Promis who has 19 Excellent daughters, was the dam of the 2008 All-American Produce, Nominated Global Cow of the Year in 2007 and has numerous sons in AI.

Ask your Semex representative today about Superman or any of Semex's leading genomic young sires in the Genomax lineup today! For additional information on Semex, Genetics for Life, Genomax, HealthSmart, Robot Ready or any of Semex's products or services visit

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Top-Notch Stanton Bulls Join Genomax Program

Semex is pleased to announce that two world-renown genomic sires, Stantons Capital Gain and Stantons High Octane, will join Semex's Genomax™ program in 2015.

Progressive dairymen worldwide count on Semex's Genomax lineup to provide a consistent source of the world's leading genomic young sires. This program is home to some of the world's most famous and profitable genomic young sires, including the international sensation 0200HO06480 Val-Bisson Doorman and breed-leading progeny proven sires such as Facebook and Numero Uno.

"Acquiring these two young bulls underscores our commitment to being the world's leading genetic supplier," says Brad Sayles, Semex Vice-President Global Marketing. "Providing our clients with these industry-leading type and milk McCutchen sons both deepens and compliments our lineup. Very shortly dairymen worldwide will have easy access to both of these sires, putting them to work in their herds, improving their genetic gain and increasing profitability." 

Available worldwide beginning January 1 and March 1 in Canada, both Capital Gain and High Octane offer breed-leading type with high NM$ and high GTPI rankings, and they're from one of the industry's most prolific families... The Chassitys! Their dam is the VG-87 Observer from Chassity the EX-92 GMD DOM 14* Shottle who is the dam of popular sires including Colt 45, Charlie and Gold Chip. Next dam EX-92-2E GMD DOM 6* Cinderella and then the famous Barbie EX-92 GMD DOM 6*.

Sired by the popular McCutchen, Capital Gain has the highest combined PTAT and PTAM figures for any McCutchen son at +3.03 PTAT and +1854 PTAM with a high +2468 GTPI and +121 CFP. Full brother High Octane ... Read More...

Semex's Genomax Success Continues With December Evaluations

With the December genetic evaluation, Semex is more confident than ever that our programs offer our clients everywhere what they’re looking for through our lineup of newly released daughter proven sires, high reliability sires and the very youngest and brightest genomic superstars.

Semex highlights include the industry’s first Genomic Giant, 0200HO7450 Amighetti Numero Uno (Man-O-Man x Shottle x Iron) receiving his first official proof, ranking him as the #6 TPI sire! He’s in good company at the top of the list, joining 0200HO03753 Marbri Facebook (#4 TPI and #1 LPI sire), 0200HO02698 Misty Springs Supersonic (Superstition x Shottle Satin x Sizzle) graduating at #13 TPI and Millionaire Sire 0200HO00402 Mainstream Manifold in the top 20 GTPI sires in the world.

Genomax™: Led by household names including 0200HO06480 Val-Bisson Doorman and the program’s most famous graduates to date, Facebook and Numero Uno, our rigorous selection standards ensure that Semex’s Genomax sires are the industry’s finest, most desirable and profitable young bulls available anywhere:

0200AY00777    LAROC EQUINOX



New technologies are always coming along that claim a host of benefits. Seldom, however, do such technologies deliver on or surpass their original claims. Immunity+ is a special innovation that does indeed meet or exceed original expectations. And, with a 25% heritability, Immunity+ sires can help improve a herd's overall health and longevity.

Based on the HIR technology developed by Dr. Bonnie Mallard and her colleagues at the University of Guelph, the research surrounding this technology spans decades. It shows that HIR cows have 19-30% lower disease incidence compared to herd averages. These cows also respond better to commercial vaccines and produce higher quality colostrum. As a result, they are more profitable by bringing in more revenue, lowering costs and wasting less of the dairyman's time. And, most importantly, Immunity+ works.

"There is a lot of on-going research in the immune response field, and in each case, the findings further validate the many benefits of Immunity+," says Jay Shannon, Semex Global Dairy Solutions Manager. "High immune response technology and Immunity+ sires have shown their potential to be one of the most significant innovations in the genetics industry, having a profound effect on a dairy's strategy to improve overall animal health."

Joining the proven Immunity+ lineup following the December 2014 genetic evaluation are:

  • 0200HO02654    MISTY SPRINGS BRACKLEY


In August 2009, the HealthSmart™ lineup was launched as a means for Semex clients to quickly identify bulls that would sire the most valuable and profitable cows on the dairy. Five years later, the HealthSmart brand still represents sires that provide fertile and healthy daughters, but also more feed efficient cows.

“By including Feed Efficiency in HealthSmart, we’re further emphasizing moderate-sized cattle, healthy cattle, efficient cattle and all around good commercial cows,” says Jay Shannon, Semex Global Dairy Solutions Manager. “These cows are the profitable kind. They have more efficient production, lower maintenance costs, lower health costs, better fertility and lead longer, more productive lives. They’re exactly what dairymen are looking for and what we’re talking about when we talk about Genetics for Life.”

The HealthSmart lineup includes these popular sires: 

  • 0200HO03753  MARBRI FACEBOOK
  • 0200HO00528  SILDAHL JETT AIR

The following Genomax™ bulls are also designated HealthSmart:

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December 2014 Proofs Online At Semex

The December 2014 LPI & TPI proofs are now online on Semex's website at!      

Semex is dedicated to our customers' success and profitability, whether they're seeking GLPI, GTPI, Type, Net Merit $, Calving Ease, Immunity+ or any of the other traits that drive profitability at the farm gate. We believe that this is Genetics for Life. Each genetic evaluation confirms this commitment and drives us towards future success.

Holstein Highlights:

  • 0200HO03753 Marbi Facebook is #1 LPI sire & #4 TPI sire
  • 0200HO02692 Gibbs-I Claynook Dude #2 Conf sire
  • Semex's #1 new release TPI bull 0200HO07450 Amighetti Numero Uno
    • #6 TPI sire overall
  • Semex's #2 new release TPI bull 0200HO02698 Misty Springs Supersonic
    • #13 TPI sire overall

Jersey Highlights:

  • 0200JE00470 Comestar JDF Beautifull
    • #5 GLPI sire overall
    • One of only two double digit bulls for conformation in the top 30  at +12 with +11 mammary and +13 feet and legs
  • 0200JE00183 Sunset Canyon David  
    • Semex's #1 new release Genomax™ graduate
    • Will rank in the top 15 active sires in the USA for GJPI
    • Three of the top six and five of the top 15 young bulls for Genomic Parent Average for LPI in Canada and three of the top four for Conformation
  • 0200JE00912 Gabys Archer is a top 10 young sire in USA for GJPI with semen available

Ayrshire Highlights:

  • Semex #1 new release LPI bull 0200AY00723 La Sapiniere Facykie
    • #4 LPI sire overall
    • #2 Fat % in Top 10 at ... Read More...

Semex Dominates The Royal

As one of the dairy industry's 'must attend' events, the 92nd Royal Agricultural Winter Fair was one for the record books for Semex. Very similar to 2013, a commanding 57% of all Holsteins shown by 27 different sires were 200HO sired! Impressively, even more Semex-sired daughters placed in the top 10 in their classes in 2014 than 2013, with 97 receiving a ribbon. Forty-six placed in the top five, 12 won their classes and Semex sired eight champions.

Like no other sire ever, Braedale Goldwyn continued his show ring dominance, capturing both Premier Sire Banners, and sired nine class winners, 49 top 10 placers and the DHI Production Award Winner. And, for the fifth consecutive year a he sired the Grand & Senior Champion Female as 1st Mature Cow, RF Goldwyn Hailey, continued her winning streak, capturing the traditional blanket of roses at the end of the day.   

Semex Genomax™ sires made their mark at the Royal as well. Making his Royal debut, Genomax™ and Immunity+™ sensation 0200HO06480 Val-Bisson Doorman sired the 1st Intermediate Calf & HM Junior Champion, Belfast Doorman Lovestruck. Placing 2nd in the same class was Repa Jenna Doorman, with seven other Doormans showing in the young heifer classes, gaining appreciation for Semex top seller. December 2014 proven sire prospect, 0200HO02770 Sully Hart Meridian's daughter Val-Bisson Meridian Doriane (a sister to Doorman himself) attracted a lot of attention in her stall at the Semex Walk of Fame and placed 3rd in the highly competitive Milking Yearling Class.



Semex is pleased to announce the opening of a new bull isolation facility in Brockville, Ontario.

With capacity of housing 230 young bulls and the goal of providing individual care to valuable young sires, this new facility will serve as an entry point for all bulls coming into stud.

“Traditional isolation facilities are generally at or very near production facilities. We chose to place this facility in a central location,” says Robert McRae, Semex Chief Operating Officer. “This ensures we have fulltime, dedicated staff that will ensure the best care and testing of these young bulls. And, we want to reduce any biosecurity risks at our production facilities, so having this facility at a separate location makes perfect sense.”

In the fast-paced genomic era, minimizing risk is just one goal of this new state-of-the-art facility. Semex is also working hard to get its valuable young sires into production sooner, impacting both Semex’s genetic suppliers and its clients.   

“We plan to be able to bring bulls into testing sooner and get them moving towards production even faster,” says Brad Sayles, Semex Vice President Global Marketing. “We’re doing everything to not only control this period in a bull’s life, but to also emphasize individualized care. Our end goal is to continue providing our clients worldwide with the best genomic young sires and proven sires in the world. This facility underscores our commitment to our clients, our genetic suppliers and our EastGen member owners in eastern Ontario that have been longtime partners in our success.”

“Our research and studies show that this is an extremely important part of a bull’s ... Read More...

2014 International Friend of Dairy Cattle Breeding Awarded to Semex's Nelson Eduardo Ziehlsdorff

The International Friend in Dairy Cattle Breeding Award is a recognition that highlights the important contributions of a person outside of Canada in promoting Quebec dairy cattle breeding. During the first edition of the Supreme Dairy Show, the organizing committee presented this award to Semex’s Nelson Eduardo Ziehlsdorff.

Nelson is an accomplished businessman, leading five companies, including Semex Brazil where he has been President and CEO since 2007. Based in Blumenau/Santa Catarina, Semex Brazil specializes in the marketing of bovine, goat and sheep genetics. With over 90 representatives throughout Brazil, Nelson manages a team that not only offers genetics, but also technical advice on management, reproduction, nutrition and genetic solutions focusing on fertility, longevity, performance and long-lasting partnerships.

Extremely active in the dairy cattle industry, Nelson is also the director of the Association of Jersey Breeders of Brazil, President of the Association of Cattle Breeders of Santa Catarina and the director of the Brazilian Association of Artificial Insemination. He is also Board President of the Tairana Central Insemination Center and is also a partner of Cenatte Embryos, a company specialized in embryo transfer and in vitro fertilization.

Additionally, Nelson is a well-recognized dairy cattle breeder owning SCR Farms, a herd of approximately 120 cattle with an additional 60 Holstein and Jersey donor cows housed in Canada and the United States.

Nelson has been key in the organization and accompaniment of numerous Brazilian ... Read More...