Onyx Park Rockie represents a blending of the Genex proven sires Dunlouise Cortachy Boy D137 and Dunlouise Jipsey Earl E161. His dam, Dunlouise Ruth H278, is a leading matron in the Dunlouise herd, stemming from the Dunlouise foundation female Ruby 5th of Newcroft.
Rockie is thrice double-bred to both the great breeding bull Rambler of Newcroft and to the noted Ruby of Loanhead. He also traces to the great Evesund of Dupplin, carrying 9% of his genes.

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The extremely rare Ruby family in the Dunlouise program stems from
Ruby 5th of Newcroft who was acquired at 11 years of age by Geordie Soutar to serve as a foundation donor. She stems from a third dam who is a full sister to the great breeding bull Rambler of Newcroft, descending from the noted Ruby of Loanhead.
Granddam of Onyx Park Rockie.

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Evesund of Dupplin is widely regarded as one of the top breeding bulls of his generation. He twice reigned as the prestigious Supreme Champion at the Royal Highland Agricultural Society Show when he won those honors in 1978 and 1979, and was admired as a model of modern Angus breeding while carrying a 100% native origin pedigree. His paternal grandsire, Rambler of Newcroft, was a great breeding bull considered by many to be generations ahead of his time. Evesund of Dupplin is a known red gene carrier.
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Traces to Onyx Park Rockie.

Dunlouise Cortachy Boy is the first of three proven maternal brothers who have served as herd sires in the Dunlouise program and featured as members of the Genex AI Stud where they enjoyed international admiration.
This son of the famous Champagne Cherry Bee B117 by Ashley Eular is a proven calving-ease and high marbling sire who ranks in the top 1% for $Energy ($EN), with nearly 750 progeny recorded in the Angus Herd Improvement Records (AHIR) program in America along with more than 200 progeny evaluated by ultrasound and more than 200 daughters in production.
Sire of Onyx Park Rockie.

Rambler of Newcroft, one of the all-time great breeding bulls ever produced in the UK and considered by many to be generations ahead of his time.
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Thrice double bred to Onyx Park Rockie.

Dunlouise Ruth H278, is a leading matron in the Dunlouise herd, stemming from the Dunlouise foundation female Ruby 5th of Newcroft.
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Dam of Onyx Park Rockie.

Dunlouise Jipsey Earl E161 is internationally the most successful UK bred bull ever and is a Pathfinder Sire in America, the only UK bull ever awarded this status. He ranks among the breed’s most elite for Calving-Ease Direct
(CED), Birth Weight EPD and Milk EPD, along with favorable rankings for Dry Matter Intake (DMI), Docility (DOC), Heifer Pregnancy (HP), Calving-Ease Maternal (CEM), $Energy ($EN), Ribeye (RE), $Weaning ($W) and $Yield Grade ($YG), with more than 1,000 progeny evaluated in the Angus Herd Improvement Records (AHIR) program and 340 daughters in
production.
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Grandfather of Onyx Park Rockie.