Sire · Purebred
Butler Mayura M07
Mayura L0089 × Butler Q14
Semen available- 400-Day Wt
- +38
- Eye Muscle Area
- +5.2
- Milk
- +6
- Marble Score
- +2.4
Our Stud & Genetics
A seedstock program built on records, not just reputation.
Proven bloodlines, recorded breeding values, and sires selected for marbling fineness, growth and quiet temperament.
Our genetics are the heart of Butler Grazing. Every animal in the stud is recorded, and every sire we stand is selected to move the herd forward, on the traits that matter to producers and to the premium beef supply chain alike.
What we breed for
- Marbling fineness: the defining trait of premium Wagyu.
- Growth & carcase: cattle that finish efficiently to specification.
- Calving ease & structure: sound, functional, long-lasting females.
- Temperament: quiet cattle that handle and finish better.
Recorded & transparent
Each sire carries a full bloodline and current estimated breeding values (EBVs). We’re happy to share progeny records and carcase data so you can buy with confidence.
The sires
Standing this season
Sire · Wagyu
Butler Itoshigenami K12
Itoshigenami TF148 × Butler M2
- 400-Day Wt
- +31
- Calving Ease
- +4
- Eye Muscle Area
- +3.3
- Marble Score
- +1.9
Sire · Wagyu
Butler Tajima Q24
Tajima Y3 × Butler H8
Semen: limited- 600-Day Wt
- +44
- Marbling Fineness
- +0.9
- Eye Muscle Area
- +4.1
- Marble Score
- +2.7
Standout females
Foundation cows & donors
Foundation dam · Purebred
Butler Q14
Itoshigenami × Butler H8
- 400-Day Wt
- +29
- Milk
- +7
- Eye Muscle Area
- +3.8
- Marble Score
- +2.1
Donor · Purebred
Butler H8
Tajima × Butler foundation
- 600-Day Wt
- +35
- Milk
- +5
- Eye Muscle Area
- +3.2
- Marble Score
- +2.5