Left to right: Studdah Cirrus-P Dream 8 & Studdah Cirrus-P Dream 12
WWS Designations
World Wide Sires UK recognises the range of criteria our customers use to select sires, based on individual economic and breeding philosophy goals. Within the brochure, utilise these designation icons to easily navigate towards sires that suit your system and refine your selection from our portfolio to best meet your breeding objectives.
Look for the genderSELECTED icon to identify sires with sex-sorted semen available. More heifers is not out of reach with our research-backed gender SELECTED sires. All gender SELECTED semen is processed using Ultraplus technology.
The Elite Sexed Fertility icon designates sires that can help you achieve the highest sexsorted semen conception rates, enhancing your return on investment! This designation identifies gender SELECTED sires with above average conception performance for sexsorted semen in both 2M and 4M products.
RobotPRO identifies sires that transmit the desired traits for robotic milking systems. These sires are selected by focusing on components and milk yield, udder health, longevity and durability, as well as functional udder traits.
The GForce lineup includes sires with elite genomic evaluations based on a combination of traditional pedigree data and genomic data, but does not contain actual daughter data. This combination of data increases the reliability of a young sires’ genetic prediction prior to the availability of actual daughter data.
The GForce+ lineup includes proven and young sires selected based on rigid semen quality standards and their high-ranking Sire Conception Rate (SCR) from progeny test semen usage. GForce+ sires must have outstanding genetic merit, a highly reliable sire stack and actual calving ease observations.
Sires which excel in multiple indicators of mastitis resistance are more likely to deliver genetic improvement. Mastitis ResistantPRO uses a combination of CDCB Mastitis Resistance, CDCB Somatic Cell Score (SCS) and Zoetis Mastitis Resistance.
GrazingPRO sires are selected to improve the profitability of grass-based production systems by transmitting outstanding daughter fertility, greater longevity, mobility, moderate stature and improved component yields.
FeedPRO is a sire selection tool for the dairy producer concerned about feed costs and wanting to improve overall profitability. This index optimizes the selection for increased production and moderate body size while maintaining body condition score, mastitis resistance and daughter fertility. FeedPRO is a revolutionary index that designates sires with the genetics to improve income over feed costs and maintain health and reproductive traits.
FertilityPRO identifies sires with semen that will likely improve pregnancy rates. This designation is assigned by examining industry Sire Conception Rate (SCR) values, along with intensive in-house semen quality evaluations.
Showcase sires earn this designation through outstanding breed-leading Type or show-winning pedigrees. This designation is for customers who want to produce the next show winner or improve the overall Type in their herd.
If you want the most reliable sires available for your breeding program, look for the Progeny Proven icon. This lineup designates sires with an evaluation based on both genomic data and actual daughter performance data.
7
INDEX OF SIRES
Above: SHEEPSTER daughters at OCD Dairy Photo credit: Andrew Hetke
Cover: Md-Locustcrest P Zuriniah Photo credit: Laurens Rutten
UNDERSTANDING OUR SIRE DIRECTORY
The guide below has been designed to help you easily navigate through our Autumn 2025 directory, this we hope will allow you to make a more informed sire selection. We as a company offer the most expansive and transparent range of data available to the UK farmer - utilising both US country of origin and UK data.
OPIE
14HO17659 ADAWAY PHOENIX OPIE-ET
PHOENIX X HAYK X GAMEDAY
HBN: 65003267672901 • AI Code: HO8577 • aAa: 351
Beta Casein: A1A2 • Kappa Casein: AB
Dam: ADAWAY HAYK 3335-ET GP-83
GDam: ADAWAY GAMEDAY 2907-ET GP-82
Key Profit Traits
U.S. Proof information can be found in this section.
TPI (Total Performance Index) is a multi-trait index calculated combining production, type, longevity and fertility into a single value. The higher the value the better.
HHP$ (Herd Health Profit Dollars) Focuses on improving production, cow fertility and mastitis resistance and it places strong emphasis on health traits utilizing health trait PTAs from CDCB. Emphasis is placed on shallow udders with correct teat size and placement and allows for comparisons with all active Holstein sires.
Dam: Adaway Hayk 3335-ET
NM$ (Net Merit) measures the expected profit that offspring will provide over its lifetime. The higher the number, the more potential profit.
DWP$ (Dairy Wellness Profit) is a multi-trait selection index which includes production, fertility, type, longevity and wellness traits, including polled test results. The higher the number, the higher the expected profitability.
WT$ (Wellness Trait) Places economic weights on wellness traits, directly estimating potential profit contribution of these traits for an individual animal. This multi-trait selection index focuses solely on wellness traits with unique formulas used for Holsteins.
PL (Productive Life) is a score used to identify the productive months of life a cow will have compared to herd mates. A PL of 1.0 equates to one additional month of production in the herd. PL gives the greatest weight to the first 305 days (10 months) of lactation, as cows are most profitable and productive in early lactation.
SCR (Sire Conception Rate) is not a genetic trait, but measures the fertility of the bull. An SCR of 1.0 indicates a 1% increase in conception rate when compared to average.
SCE (Sire Calving Ease) is the estimate of the Percentage of Difficult Births in Heifers (DBH) when they calve the first time.
Designations. For a full explanation of Designations see page 5.
U.K. production evaluation information can be found in this section.
PLI (Profitable Lifetime Index) is the national multi-trait index for use in yearround-calving herds. It promotes yield whilst protecting milk quality, and adds emphasis to fertility, longevity and calving performance whilst improving functional type, udder health and lameness. The higher the value the better.
U.K. management evaluation information can be found in this section.
SCI (Spring Calving Index) is an across breed genetic index developed for spring block-calving herds, which rely heavily on grazed grass and calve in a tight block, to breed cows that produce lower volumes of milk at higher quality. As the index is across-breed, bulls of different breeds can be compared. SCI promotes milk quality, fertility, longevity, easier calving, selects for reduced maintenance costs and protects functional type.
ACI (Autumn Calving Index) is an across breed genetic index developed for autumn block-calving herds, and reflects the costs for feeding for winter milk production and the higher milk price received at that time of year. As the index is across-breed, bulls of different breeds can be compared. ACI promotes more milk yield than SCI, but has less emphasis on milk quality & health traits. It does have a higher emphasis on female fertility than PLI. It also selects for longevity, easier calving and functional type and reduced maintenance costs.
U.K. type evaluation information can be found in this section.
Zoetis Wellness Traits can be found in this section.
Zoetis Wellness traits are direct predictors for wellness traits related to common disease conditions in dairy production. These genetic predictions are based on data from millions of health records within U.S. commercial herds. Higher values are more desirable for all traits. Use Wellness traits to help you select for a healthier,more trouble-free herd over time.
Top 5 PLI
APRIL 2026 TRAIT LEADERS
PROVEN SIRES
Top 5 Fertility Index
711
675
REX 666
618
613
Top 5 Milk MIKE 1164
1062
968
926
GENOMIC SIRES
Top 5 Fertility Index
Top 5 DWP$
Genetic testing with CLARIFIDE® Plus from Zoetis is a tool that lets you reach your ideal herd faster. Gain insights, gain confidence, gain clarity. Speak to your WWS Genetic Consultant for more information.
CAPONE
RENEGADE X MODESTY X JEDI
HBN: 65003202074756 • AI Code: HO6551 • aAa: 234
Beta Casein: A2A2 • Kappa Casein: BB
Dam: REGAN-DANHOF M CRIMSON-ET VG-86
GDam: REGAN-DANHOF JEDI CASHMERE VG-88
CIRRUS-P
Dtr:
Rump
Dtr: Bokma Capone Jolly
Proven
CONWAY
14HO15223 SANDY-VALLEY R CONWAY-ET
RENEGADE X GRANITE X DRACO
HBN: 65003148929379 • AI Code: HO6550 • aAa: 243
Beta Casein: A2A2 • Kappa Casein: BB
Dam: SANDY-VALLEY COTTON-ET GP-82
GDam: SANDY-VALLEY CALICO-ET EX-90
Dtr: Aurora Conway 23551-ET
ESQUIRE
Beta Casein: A2A2 • Kappa Casein: AB
Dam: SANDY-VALLEY ESCANABA-ET EX-92
GDam: SANDY-VALLEY APNTC EPPIE-ET
Dtr: Beyond Esquire H-Ness 7HO15937 SANDY-VALLEY
Rump
Rump
HARMONY
250HO15955 AOT PARFECT HARMONY-ET
PARFECT X POSITIVE X DELTA
HBN: 65003220248849 • AI Code: HO7353 • aAa: 423
Beta Casein: A1A2 • Kappa Casein: AB
Dam: AOT POSITIVE HALLMARK-ET VG-85
GDam: COOKIECUTTER DTA HABITAN-ET EX-90
Dtr: Heathersgill Harmony UC Asherlin
X HUEY X HOTLINE
65003230499545 •
Beta Casein: A2A2 • Kappa Casein: AB
Dam: SHELAND HUEY LUEY-ET VG-85
GDam: MIDAS-TOUCH HOT LIPS-ET VG-88
Dtrs: Heathersgill Lock Lys and Heathersgill Lock SPL Liza
Rump
Teat
MELLENCAMP
RENEGADE X SAMURI X SUPERSHOT
PARFECT
7HO15085 SIEMERS RENGD PARFECT-ET
HBN: 65003150997179 • AI Code: HO6481 • aAa: 432
Beta Casein: A2A2 • Kappa Casein: BB
Dam: FLY-HIGHER SAMURI MEDRIA-ET GP-82
GDam: FLY-HIGHER SHOT MISTRESS-ET EX-90
Mellencamp Daughter Group at Wintersell Holsteins 7HO15204 FLY-HIGHER MELLENCAMP-ET
RENEGADE X DELTA-LAMBDA X DENVER HBN: 65003200124761 • AI Code: HO6549 • aAa: 324
Beta Casein: A2A2 • Kappa Casein: BB
Dam: SIEMERS LMDA PARIS 27856-ET EX-91
GDam: SIEMERS DENVER PARIS-ET EX-91
Production Data Source: Proven AHDB
Rump
Rump
PAZZLE
250HO16115 SIEMERS RZ PAZZLE 34954-ET TR
ROZLINE X DELTA-LAMBDA X DENVER
HBN: 65003218556317 • AI Code: HO7476 • aAa: 132
Beta Casein: A2A2 • Kappa Casein: BB
Dam: SIEMERS LMDA PARIS 27856-ET EX-91
GDam: SIEMERS DENVER PARIS-ET EX-91
Dtrs: Mystique Pazzle Anieta and Allegro
HBN: 65003150905572 • AI Code: HO7775 • aAa:
Beta Casein: A1A1 • Kappa Casein: AB
Dam: JC-KOW RENEGADE 1453-ET EX-90
GDam: JC-KOW FRAZZLED 1188-ET VG-86
UK
UK
Rump
Rump
Foot
Fore
Udder
Teat
Teat
RAGER-RED
RAITON
7HO16174 LARS-ACRES SSI GD RAITON-ET
X RENEGADE X SLAMDUNK HBN: 65003219743151 • AI Code: HO7474 • aAa: 324
Beta Casein: A2A2 • Kappa Casein: AB
Dam: RI-VAL-RE OBSRVR SALSA-ET VG-88
GDam: RI-VAL-RE ADV WIN-GO-RED-ET EX-90
Dtr: Groves-Vu Rager Tabbey-Red 7HO12344 RI-VAL-RE RAGER-RED-ET
Beta Casein: A1A2 • Kappa Casein: AB
Dam: PRESTON S-S-I 5716 23054-ET VG-88
GDam: S-S-I PR 9494 5716-ET VG-88
Lars-Acres SSI GD Raiton-ET
Production Data Source: Proven AHDB Apr 2026
UK
UK
Stature
Chest
Body
Angularity
Rump
Rump
Rear
Foot
Fore
Udder
Udder
Teat
Teat
RENEGADE
250HO14134 S-S-I PR RENEGADE-ET
JALTAOAK X MILLINGTON X DAVINCI
HBN: 65003142352961 • AI Code: HO5503 • aAa: 213
Beta Casein: A1A2 • Kappa Casein: BB
Dam: S-S-I MLNGTN 10398 11588-ET VG-85
GDam: S-S-I DAVINCI 7514 10398-ET G-77
Renegade daughter group at Eastknook Holsteins
SHEEPSTER
Beta Casein: A1A2 • Kappa Casein: AA
Dam: OCD ACURA SOY 60075-ET EX-90
GDam:
Sheepster Group
SUNDANCE
Beta Casein: A1A2 • Kappa Casein: AB
Dam: T-SPRUCE SSI 12540 1031-ET GP-84
GDam: T-SPRUCE NIGHTSKY 12540-ET GP-83
Dam:
Data Source: Proven AHDB Apr 2026
UK
UK
Rump
Rump
Foot
Fore
Rear
Udder
Udder
Teat
Teat
TAOS
7HO15112 LEANINGHOUSE TAOS-ET TR
RENEGADE X JEDI X TATUM
HBN: 65003151003682 • AI Code: HO6476 • aAa: 324
Beta Casein: A1A2 • Kappa Casein: BB
Dam: LEANINGHOUSE JEDI 22480-ET
GDam: WEBB-VUE TATUM 7533-ET VG-88
Taos daughter group at Wintersell Holsteins
TROOPER
RENEGADE X LEGENDARY X JOSUPER
HBN: 65003149934610 • AI Code: HO8008 • aAa: 432
Beta Casein: A1A2 • Kappa Casein: AB
Dam: PLAIN-KNOLL LEGNDRY 1551-ET VG-86
GDam: PLAIN-KNOLL JOSUPER 794-ET VG-85
Production Data Source: Proven AHDB Apr 2026
Rump
Rump
Teat
TO SUPPORT YOUR HERD’S ECONOMIC GOALS
Genetic progress equates to greater economic sustainability.
Select Sires’ Herd Health Profit Dollars® (HHP$®) is the premier index to achieve your dairy’s financial goals. It is designed to create healthier, longer-living cows to support your herd’s inventory strategy without sacrificing genetic gains.
COMPONENTS
More pounds of fat and protein from fewer cows equates to more lifetime profit per cow.
TROUBLE-FREE AND LONGER-LIVING
Reduce death loss and involuntary culling to align with replacement inventory strategies and spend less time and money treating sick cows. 9%
CONFORMATION THAT COUNTS
Leverage the conformation traits that create easy-to-milk, easy-to-manage, balanced cows. 15%
BREED BACK QUICKLY
By improving pregnancy rate from 19% to 25%, herds can increase profit by $49 per cow per year. 12%
IMPROVE FEED EFFICIENCY
Moderate body size and improved feed efficiency means less feed and less water per pound of milk. 2%
STRENGTHEN MASTITIS RESISTANCE
Incorporate genetic solutions to safeguard against mastitis while improving milk quality. 13%
MIKE
7HO17678 OCD SHEEPSTER MIKE-ET
X FROST BITE X PARFECT
HBN: 65003271294269 • AI Code: HO8682 • aAa: 435
Beta Casein: A2A2 • Kappa Casein: AA
Dam: OCD FROSTBITE MINT 68550-ET GDam: OCD PARFECT MINT 63586-ET VG-86
LEIF
KARL X POWERSTAR X DELUXE
65003287659616 •
Dam: BEYOND POWRSTR 41312-ET
HO8772 • aAa:
Beta Casein: A2A2 • Kappa Casein: AB
GDam: AOT DELUXE HI-LIGHTED-ET EX-91
MGD: AOT Deluxe Hi-Lighted-ET 250HO18112 BEYOND KARL LEIF-ET
Rump
Rump
Foot
Fore
Udder
Teat
Teat
Locomotion
BUBBA
250HO18126 S-S-I
FOUGHTY BUBBA-ET
FOUGHTY X SEAR X DELUXE
HBN: 65003256965294 • AI Code: HO8773 • aAa:
Beta Casein: A1A2 • Kappa Casein: AB
Dam: BEYOND SR 26006 5178-ET GP-82
GDam: AOT DELUXE HI-LIGHTED-ET EX-91
MGD: AOT Deluxe Hi-Lighted-ET
DAY TRIP
aAa: 423
Beta Casein: A1A1 • Kappa Casein: AB
GDam: RMD-DOTTERER SSI 16423-ET G-77
UK
UK
UK
Stature
Chest
Body
Angularity
Rump
Rump
Foot
Fore
Udder Support
Udder
YOUNGSTOCK MONITOR
LIFETIME MONITORING. MAXIMISE PERFORMANCE.
Implement the technology designed to optimise calf rearing and maximise future herd health and productivity. Youngstock Monitor uses lightweight ear sensors to track crucial development stages, helping you improve calf health and welfare now for a strong, productive herd in the future.
Real-time alerts ensure each calf receives the attention it needs, leading
Intelligence and continuously evolving algorithms, the system adapts to your specific farm and the unique behaviour of each calf.
With CowManager's Lifetime Monitoring system, you can support the full lifecycle of your herd – from calf to cow – ensuring optimal health, growth, and performance at every stage.
SCAN NOW
Genomic
ABNER
Beta Casein: A1A2 • Kappa Casein: AB
Dam: S-S-I SHF ONO 39224-ET VG-88
GDam: RMD-DOTTERER S-S-I 12796-ET EX-91
MGD: RMD-Dotterer S-S-I 12796-ET
ALCATRAZ
aAa: 432
Beta Casein: A2A2 • Kappa Casein: AA
UK
UK
Stature
Chest
Angularity
Rump
Rump
Rear
Foot
Fore
Udder
Udder
Teat
Teat
ARLO
HBN:
Beta Casein: A1A2 • Kappa Casein: AA
CHUCK
Dam: KENYON-HILL GAMEDAY ONIA-ET VG-88
GDam: KENYON-HILL PURSUIT NIA EX-90
Dam: Kenyon-Hill Gameday Onia-ET 250HO17190 KENYON-HILL
aAa: 453
Beta Casein: A2A2 • Kappa Casein: BB
Dam: WILRA SSI GAMEDAY 2250-ET GP-83
GDam: WILRA LIONEL 1913-ET GP-83
UK
UK
Stature Chest
Rump
Rump
Foot
Fore
Rear
Udder
Teat
Teat
Genomic Holstein
CONFAY
250HO17433 SANDY-VALLEY CONFAY-ET
EASTON X PARFECT X LEGACY
HBN: 65003267428997 • AI Code: HO8403 • aAa: 432
Beta Casein: A2A2 • Kappa Casein: BB
Dam: SANDY-VALLEY CONFUSION EX-90
GDam: SANDY-VALLEY CONFUZZLE-ET VG-88
Dam: Sandy-Valley Confusion
CRUCIATE
HBN: 65003267428722 • AI Code: HO8575 • aAa:
Beta Casein: A1A2 • Kappa Casein: BB
Dam: RMD-DOTTERER BSHOT 17798-ET
GDam: S-S-I RMD 7613 4044-ET GP-81
MGGD: Pine-Tree 9839
Rump
Rump
Foot
Fore
Rear
Udder
Udder
Teat
Teat
Locomotion
ESKIL
250HO17108 T-SPRUCE ESQUIRE ESKIL-ET
ESQUIRE X CONWAY X LIONEL
HBN: 65003260815034 • AI Code: HO8009 • aAa: 354
Beta Casein: A2A2 • Kappa Casein: AA
Dam: T-SPRUCE CONWAY 15574-ET GP-84
GDam: MERCEDES LIONEL LASS-ET
MGGD: Endco Yoder L7933 9839-ET
Beta Casein: A2A2 • Kappa Casein: AB
GDam:
UK
Body
Rump
Rump
Rear
Foot
Fore
Rear
Udder
Udder
Teat
Teat
Locomotion
RobotPRO identifies sires that transmit the desired traits for robotic milking systems. These sires are selected by focusing on components and milk yield, udder health, longevity and durability, as well as functional udder traits.
“Select Sires is continually reviewing designation criteria to meet the evolving needs of dairy farmers. In August 2024, the formula was updated to include Canadian evaluations for Udder Floor and Milking Temperament. Cows with extreme reverse tilt make it difficult for robot sensors to locate rear teats. We’ve also heard the concerns from dairy farmers regarding nervous cows. They require more time for the robot to attach the units and more time for re-attachments. Adding consideration for these traits will improve the usefulness of this designation in dairies around the world.”
– Chuck Sattler Vice President of Genetic Programs, Select Sires Inc.
YOUR SOLUTION FOR AUTOMATED MILKING SYSTEMS
Offspring will be robot-reliable
Geared toward critical robot management factors
Formulated with an emphasis on health and wellness
RobotPRO assures correct Rear Teat Placement and Teat Length for your robots.
Genomic Sires
Proven Sires
HABULOUS-P
250HO17298 SIEMERS HABULOUS-P-ET
X
HBN: 65003257574731 • AI Code: HO8378 • aAa: 321
Beta Casein: A2A2 • Kappa Casein: BB
Dam: SIEMERS PAR HANAN 36296-ET EX-90
GDam: SIEMERS LSTR HANAN 33317-ET EX-91
HADER
250HO17215 DUCKETT HAYK HADER-ET
HAYK X PARFECT X DOC HBN: 65003260843021 • AI Code: HO8146 • aAa: 234
Beta Casein: A1A2 • Kappa Casein: BB
Dam: DUCKETT PARFECT HALLIE-ET EX-92
GDam: S-S-I DOC HAVE NOT 8784-ET EX-96
Dam: Duckett Parfect Hallie-ET
UK
UK
Rump
Rump
Rear
Udder
Teat
HANDLEIT
7HO17655 COOKIECUTTER HANDLEIT-ET
SUNDANCE X GAMEDAY X EINSTEIN
HBN: 65003228893921 • AI Code: HO8681 • aAa: 435
Beta Casein: A1A2 • Kappa Casein: BE
Dam: COOKIECUTTER GDY HEIRDAY-ET VG-85
GDam: COOKIECUTTER HEIRDO-ET VG-87
Cookiecutter Handleit-ET
HYOID
250HO17332 S-S-I SIEMER MIMIC HYOID-ET
MIMIC X PARFECT X BUNDLE HBN: 65003267429067 • AI Code: HO8296 • aAa: 324
Beta Casein: A1A2 • Kappa Casein: AB
Dam: WA-DEL PARFECT LISA-ET EX-91
GDam: WA-DEL BUNDLE GLORIA-ET VG-88
MGGD: Ben-Akers RWF Luise2C39-ET
UK
UK
Stature
Chest
Body
Angularity
Rump Angle
Rump Width
Rear Legs (side view)
Foot Angle
Fore Udder Attachment
Rear Udder Height
Udder Support
Udder Depth
Front Teat Placement
Teat Length
Rear Teat Placement
Teat Side Position
KEUKA
250HO18257 AURORA KNACK KEUKA-ET TR
KNACK X HOLYSMOKES X CONWAY
HBN: 65003291039797 • AI Code: HO8774 • aAa: 531
Beta Casein: A1A2 • Kappa Casein: AB
Dam: AURORA HOLYSMOKES 25888-ET GP-83
GDam: AURORA CONWAY 23551-ET VG-88
MGD: Aurora Conway 23551-ET
KICKSTART
Beta Casein: A2A2 • Kappa Casein: BB
Dam: GENOSOURCE PARFCT ORIOLE-ET VG-88
GDam: GENOSOURCE POSITIVE 8442-ET VG-87
Synergy Kickstart-ET
Rump
KNACK
250HO17022 BEYOND FIGARO KNACK-ET TR
FIGARO X DELUXE X BIGGELO
HBN: 65003253835727 • AI Code: HO8375 • aAa: 243
Beta Casein: A1A2 • Kappa Casein: AB
Dam: AOT DELUXE HI-LIGHTED-ET EX-91
GDam: AOT BIGGELO HASKEL2-ET EX-92
Dam: AOT Deluxe Hi-Lighted-ET
LUSBY
HBN: 65003252524205 • AI Code: HO8683 • aAa: 324
Beta Casein: A1A2 • Kappa Casein: AA
Dam: WELCOME WHEELHOUSE LAEN-ET VG-85
GDam: WELCOME MAXIMUS LYNC-ET GP-81
Welcome Lusby-ET
UK
UK
Stature
Chest
Body
Angularity
Rump
Rump
Rear
Foot
Fore
Rear
Udder
Udder
Teat
Rear
Teat
Locomotion Condition
MADMAX
REAPER X OVERDO X GAMEDAY
MIRKO
HBN: 65003283756721 • AI Code: HO8685 • aAa:
Beta Casein: A1A2 • Kappa Casein: AB
Dam: TERRA-LINDA OVERDO 1604-ET GP-83
GDam: TERRA-LINDA GAMEDY 11292-ET GP-83
Sire: S-S-I Siemers GS Reaper-ET 250HO17774 TERRA-LINDA REAPR MADMAX-ET
Beta Casein: A2A2 • Kappa Casein: AA
Dam: WET PAYLOAD MINK-ET VG-87
GDam: WET RENEGADE MELANIA-ET VG-87
Rump
Rump
Teat
OPIE
OZARK
14HO17393 KENYON-HILL SHEEP
SHEEPSTER X GAMEDAY X PURSUIT
HBN: 65003267801952 • AI Code: HO8265 • aAa: 435
Beta Casein: A1A1 • Kappa Casein: AA
Dam: KENYON-HILL GAMEDAY ONIA-ET VG-88
GDam: KENYON-HILL PURSUIT NIA EX-90
Dam: Kenyon-Hill Gameday Onia-ET
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Calf Perk® is an easy to use, immediate energy stimulant for newborn calves that naturally increases body temperature and respiration rates to perk them up.
• Naturally increases body temperatures and respiration rates in newborn calves
• Enhances calf vigor and suckle reflex
• Based on recommendations from human medicine for infant support
PAMAZE-RED
7HO17428 SIEMERS PAMAZE-RED-ET
FREESTYLE-RED X GAMEDAY X MARK *RC
HBN: 65003267428205 • AI Code: HO8481 • aAa: 465
Beta Casein: A1A2 • Kappa Casein: AA
Dam: SIEMERS GD PARIS 36374-ET VG-85
GDam: SIEMERS MARK PARIS 31989-ET VG-85
Siemers Pamaze-Red-ET
PATOOTIE
HBN: 65003284827393 • AI Code: HO8688 • aAa: 234
Beta Casein: A2A2 • Kappa Casein: AB
Dam: SIEMERS RZLN PARIS 34969-ET VG-87
GDam: SIEMERS LMDA PARIS 27856-ET EX-91
UK
UK
Stature
Chest
Body
Angularity
Rump
Rump
Rear
Foot
Fore
Udder
Udder
Teat
Rear
Teat
Locomotion Condition
PHLEGON
250HO17885 SIEMERS SSI TRNS PHLEGON-ET
TRANSFER X HOLYSMOKES X CONWAY
HBN: 65003284828149 • AI Code: HO8687 • aAa: 231
Beta Casein: A2A2 • Kappa Casein: BB
Dam: BADGER SHF HOLY 40122-ET GP-84
GDam: BADGER SSI CONWAY 17530-ET
Sire: S-S-I Beethoven Transfer-ET
PUFFIN
250HO17842 BEYOND SSI NITRUS PUFFIN-ET
X POWERSTAR X
HBN: 65003284827290 • AI Code: HO8770 • aAa: 351
Beta Casein: A2A2 • Kappa Casein: AB
Dam: BEYOND POWRSTR 41312-ET
GDam: AOT DELUXE HI-LIGHTED-ET EX-91
MGD: AOT Deluxe Hi-Lighted-ET
UK
UK
Stature
Chest
Body
Rump
Rump
Foot
Fore
Udder
Udder
Teat
Teat
RAINMAN
RECHARGE X ENGINEER X CAPTAIN
REDEMPTION
HBN: 65003271294577 • AI Code: HO8578 • aAa: 423
Beta Casein: A2A2 • Kappa Casein: AB
Dam: OCD ENGINEER RAE 68528-ET VG-85
GDam: OCD CAPTAIN RAE 64355-ET
MGD: OCD Captain Rae 64381-ET 250HO17683 OCD RECHARGE RAINMAN-ET
HO8771 • aAa:
Beta Casein: A2A2 • Kappa Casein: BB
Dam: DICKLANDS DYNASTY 4235
GDam: DICKLANDS RENEGADE 3865 VG-86
Sire: S-S-I Earlybird Sundance-ET
Rump
Rump
Udder
Teat
RUFUS *RC
HBN: 65003261835781 • AI Code: HO8291 • aAa: 435
Beta Casein: A1A2 • Kappa Casein: BB
Dam: TRENT-WAY RESBIT-ET EX-90
GDam: TRENT-WAY-JS REDZONE-RED-ET EX-91 Dam: Trent-Way Resbit-ET 7HO17285 TRENT-WAY RUFUS-ET
SCOTTY
Beta Casein: A1A2 • Kappa Casein: BB
Dam: ADAWAY HAYK 3335-ET GP-83
GDam: ADAWAY GAMEDAY 2907-ET GP-82
UK
Rump
Rump
Foot
Fore
Udder
Udder
Teat
Teat
Locomotion
SOETEBIER-P
7HO17365 S-S-I SHEEPS SOETEBIER-P-ET
SHEEPSTER X BEDROCK-PP X
HBN: 65003272648764 • AI Code: HO8398 • aAa: 534
Beta Casein: A1A2 • Kappa Casein: AA
Dam: S-S-I BEDROCK-PP 11605 3842 GP-82
GDam: S-S-I TRY ME 4273 11605-ET
S-S-I Sheeps Soetebier-P-ET
SPRINGSIDE
7HO17910 AURORA
X MAGNUM X CONWAY HBN: 65003271807656 • AI Code: HO8615 • aAa: 432
Beta Casein: A2A2 • Kappa Casein: BB
Dam: AURORA MAGNUM 25354-ET VG-86
GDam: AURORA CONWAY 23556-ET VG-88
MGD: Aurora Conway 23556-ET
Production Data Source:
Stature
Chest
Body
SUNSUN
250HO17295 SANDY-VALLEY SUNSUN-ET
ZOAR X PARFECT X LEGACY
HBN: 65003257574400 • AI Code: HO8295 • aAa: 216
Beta Casein: A2A2 • Kappa Casein: AB
Dam: SANDY-VALLEY SUGARPLUM-ET EX-90
GDam: SANDY-VALLEY SUGAR HIGH-ET VG-85
Dam: Sandy-Valley Sugarplum-ET
TENTASTIC
SANDY-VALLEY TENTASTIC-ET
HBN: 65003250768379 • AI Code: HO8012 • aAa: 432
Beta Casein: A1A2 • Kappa Casein: AB
Dam: SANDY-VALLEY TENCEL-ET EX-93
GDam: SANDY-VALLEY CHENILLE-ET VG-88
Dam: Sandy-Valley Tencel-ET
UK
UK
Stature
Chest
Body
Angularity
Rump
Rump
Rear
Foot
Fore
Rear
Udder
Udder
Teat
Rear
Teat
Genomic
TUBMAN
WOLFF
7HO18017 S-S-I SIEMERS HADZ WOLFF-ET
X PARFECT X RAPID
HBN: 65003259995104 • AI Code: HO8404 • aAa:
Beta Casein: A2A2 • Kappa Casein: AB
Dam: AURORA PARFECT 23719-ET VG-88
GDam: AURORA RAPID 21849-ET VG-88
Dam: Aurora Parfect 23719-ET 250HO17513 AURORA TUBMAN-ET
• AI Code: HO8731 • aAa:
Beta Casein: A1A2 • Kappa Casein: BB
Dam: BEYOND SHPSTER 42065-ET VG-85
GDam: AOT DELUXE HI-LIGHTED-ET EX-91
Dam: Beyond Shpster 42065-ET
UK
UK Udder
Stature
Chest
Body Depth
Angularity
Rump Angle
Rump Width
Rear Legs (side view)
Foot Angle
Fore Udder Attachment
Rear Udder Height
Udder Support
Udder Depth
Front Teat Placement
Teat Length
Rear Teat Placement
Teat
ADDITIONAL SIRES ALSO AVAILABLE
MOTIVATED TO HELP FARMERS
“BUILD
A BETTER HERD”
◆ Risk Management
◆ Precision Breeding Strategy
◆ Genetic Audit
◆ Harness the Power of Genomic Data
◆ Tailored to Your Operation
Why WMS?
“We have used the WWS Mating Program for many years and quite simply it takes the guess work out of breeding cows!
Avoiding inbreeding, correctively mating major type traits and setting parameters for milk, fat and protein ensures the progress of the breeding strategy for our herd.”
Messrs F G & M R Martin Lords Plain Farm Levens, Kendal Cumbria
Renegade daughters: L.P Renegade Moyra, L.P. Renegade Beryl 2, L.P. Renegade Etta 6, L.P. Renegade Joy
Learn more about the beef sires available from WWS UK
ANGUS QUINN
Blackhaugh Quinn X688
AI Code: AA1910 • Ear-Tag: UK560182300688
Breed Code: 21 • Herdbook No. UK560182300688
Source: Enhanced Calving Survey (on Holsteins), November 2024
Gestation Length Observations: Country of origin: UK
Calving Ease Difficult
Gestation Length Longer
Easy
ANGUS SUMMATION
Quaker Hill Summation 2U21
AI Code: AA2134 • Ear-Tag: 2U21
Breed Code: 21 • Herdbook No. 20689081(US)50
Source: US EPD (Angus)/UK Breedplan (Angus), March 2026
Country of origin: USA
Calving Ease Difficult
FULL CIRCLE
E W A Full Circle 9126
AI Code: AA2162 • Ear-Tag: 9126
Breed Code: 21 • Herdbook No. 19643643(US)50
Source: US EPD (Angus), March 2026
Country of origin: USA
Calving Ease
ANGUS KRAKEN
Morpheus Kraken Z130
AI Code: AA2026 • Ear-Tag: UK173454300130
Breed Code: 21 • Herdbook No. UK173454300130
Source: Calving Survey, February 2026
Country of origin: UK
Calving Ease Difficult
ANGUS LAREDO
E W A Laredo L017B
AI Code: AA2208 • Ear-Tag: L017B
Breed Code: 21 • Herdbook No. 20701697(US)50
Source: US EPD (Angus), March 2026 Country of origin: USA
Calving Ease Difficult
Three Bulls in One Straw
TRY ME
Iz Try Me
AI Code: BB2160 • Ear-Tag: UK740488301801
Breed Code: 37 • Herdbook No. UK740488301801
Source: UK Breedplan (Blue), March 2026
Gestation Length Observations: Country of origin: UK
Calving Ease Difficult
Gestation
BLUE INCREDIBLE
Boroside Incredible AI Code: BB1459 • Ear-Tag: IE371479981207
Breed Code: 37 • Herdbook No. IE371479981207
Source: UK Breedplan (Blue), February 2026
Gestation Length Observations: 188 Country of origin: N. Ireland
Calving Ease Difficult Very Easy
Gestation Length Longer
Learn more about the beef sires available from WWS UK
BLUE RANDALL
Calin Et De Ronsart
AI Code: BB2032 • Ear-Tag: BE158786369
Breed Code: 37 • Herdbook No. BE158786369
Source: Aberekin Calving Survey (on Holsteins), March 2026
Gestation Length Observations: 146 Country of origin: Spain
Calving Ease Difficult Very Easy
Gestation Length Longer
Kelowna Randall
AI Code: BB1925 • Ear-Tag: B-20210269
Breed Code: 37 • Herdbook No. UK102530601456
Source: Enhanced Calving Survey (on Holsteins), November 2024
Gestation Length Observations: Country of origin: UK
Calving Ease Difficult Very Easy
Gestation Length Longer Shorter
SHERMAN
CBL Sherman
AI Code: BB2000 • Ear-Tag: B-20220696
Breed Code: 37 • Herdbook No. UK102530301488
Source: Enhanced Calving Survey (on Holsteins), November 2024
Gestation Length Observations: Country of origin: UK
Calving Ease Difficult
Easy Gestation Length Longer
Learn more about the beef sires available from WWS UK
Dora Lee’s Jack FF73F (PP)
AI Code: SG1410 • Ear-Tag: DLD 73F
Breed Code: 23 • Herdbook No. P1250879
Source: US EPD (Simmental), November 2025
Country of origin: USA
Calving Ease Difficult
SIMMENTAL NEMO
Springfield Nemo 22
AI Code: SG1451 • Ear-Tag: UK180278700489
Breed Code: 23 • Herdbook No. M105433
Source: UK Breedplan (Simmental), February 2026
Gestation Length Observations: G Country of origin: UK
Calving Ease Difficult
Gestation Length Longer
DUNCAN P
Gouldingpoll 1 Duncan P
AI Code: H9215 • Ear-Tag: IE214806891239
Breed Code: 19 • Herdbook No. 372214806 891239
Source: Enhanced Calving Survey (on Holsteins), March 2025
Gestation Length Observations: Country of origin: UK
Calving Ease Difficult
Gestation
VELOCITY
Huth Velocity
AI Code: H9152 • Ear-Tag: F023
Breed Code: 19 • Herdbook No. P43940428
Source: US EPD (Hereford), December 2025
Gestation Length Observations: Country of origin: USA
Calving Ease Difficult
Ricochet
AI Code: CH3756 • Ear-Tag: FR4243242143
Breed Code: 18 • Herdbook No. FR4243242143
Source: Genes Diffusion Genomic Assessment, March 2026
Gestation Length Observations: Country of origin: France
Calving Ease Difficult
THEODEN
Greensons Theoden PP
AI Code: LN3095 • Ear-Tag: UK232449/500179
Breed Code: • Herdbook No. GAT22-0179
Source: UK Breedplan (Limousin), December 2025
Gestation Length Observations: Country of origin: UK
Calving Ease Difficult
Learn more about the beef sires available from WWS UK
HULK
AI Code: PENDING • Ear-Tag: FR7121602098
Breed Code: 18 • Herdbook No. FR7121602098
Source: Genes Diffusion Calving Survey, February 2026
Gestation Length Observations: Country of origin: France
Calving Ease Difficult Very Easy
Gestation Length Longer Shorter
Tomschoice Scorpion
AI Code: LN3086 • Ear-Tag: UK124148400660
Breed Code: • Herdbook No. CJL21-0660
Source: UK Breedplan (Limousin), December 2025
Gestation Length Observations: Country of origin: UK
Calving Ease Difficult
Gestation
CHAROLAIS
Tajax
available N. Ireland only
AI Code: LN3204 • Ear-Tag: ES001510471892
Breed Code: • Herdbook No. ES001510471892
Sire: Majax
Source: Aberekin Calving Survey (on Holsteins), March 2026
Gestation Length Observations: 51 Country of origin: Spain
Calving Ease
Gestation
WAGYU
Learn more about the beef sires available from WWS UK
HARU
OCD Haru 44418E ET
AI Code: MS0111 • Ear-Tag: OCD 44418E
Breed Code: • Herdbook No. FB28774
Source: USA Performance Data (Wagyu)/UK Breedplan (Wagyu), Nov. 2025
Gestation Length Observations: 20 Country of origin: USA
Calving Ease Difficult
Gestation Length Longer
As a growing business World Wide Reproductive Solutions works in partnership with farmers to deliver complete fertility management on farm. Our focus is simple- increasing pregnancy rates, improving efficiency and profitability.
Our dedicated, highly skilled team is continuously trained to deliver the highest standards, the latest technology and the best practice on every farm.
OUR SERVICES
Walk & Chalk - Reliable, consistent heat detection carried out by skilled technicians
Activity based heat detection - Monitoring heats accurately via supported apps
Heifer Synchronisation programmes - Well planned sync programmes to achieve the best results possible
Fertility management - clear data, regular fertility reviews and practical advice to keep the herd moving forwards using herd software Bovisync
CONTACT:
Great Britain
Steve Whitford-Williams
07715 676 291
swhitford-williams@wwsires.co.uk
Northern Ireland
James Woods
07354 201256
jwoods@wwsires.co.uk
WE ARE HIRING.
Positions available in South Scotland, South Wales, SW England & N. Ireland.
MEET THE TEAM
NORTHERN GENETIC CONSULTANTS
Richard Graham
WWS UK North Sales & Business Development Manager 07827 925984 rgraham@wwsires.co.uk
Campbell McNicol Scotland 07553 457306 cmcnicol@wwsires.co.uk
Rory Scott Scotland 07514 266354 rscott@wwsires.co.uk
Steven Carruthers North England 07821 124352 scarruthers@wwsires.co.uk
Tony Burton North England 07812 416960 tburton@wwsires.co.uk
Sam Evington North / Central England & N. Wales 07521 309491 sevington@wwsires.co.uk
Phil Arrell
Central England 07843 842036 parrell@wwsires.co.uk
Phil Rusby East England 07354 201359 prusby@wwsires.co.uk
Matt Fisher WMS Evaluator 07514 266353 mfisher@wwsires.co.uk
CUSTOMER ENQUIRIES
01352 746810 enquiries@wwsires.co.uk N. Ireland 028 90406100
SOUTHERN GENETIC CONSULTANTS
Dan Warman
WWS UK South Sales & Business Development Manager 07891 853737 dwarman@wwsires.co.uk
Rob Braithwaite
Central England & Wales 07540 052025 rbraithwaite@wwsires.co.uk
Ian Dennis
South West England 07495 652794 idennis@wwsires.co.uk
Stuart Perry South West England 07926 699856 sperry@wwsires.co.uk
Martyn Smith South England 07813 716289 msmith@wwsires.co.uk
Gerwyn Jones Wales 07870 589892 gjones@wwsires.co.uk
Greg Duthie
South Wales 07932 669716 gduthie@wwsires.co.uk
TECHNICAL SPECIALISTS
Rob Braithwaite Genetic Solutions Manager 07540 052025 rbraithwaite@wwsires.co.uk
Lizzie Herbert
Genetic Data Specialist 07584 169430 lherbert@wwsires.co.uk
Amy Hall-Brown
Genetic Data Specialist 07989 097231 ahall-brown@wwsires.co.uk
NORTHERN IRELAND GENETIC CONSULTANTS
James Woods NI Sales & Business Development Manager 07354 201256 jwoods@wwsires.co.uk
Dennis Torrens WMS Evaluator 07955 999129 dtorrens@wwsires.co.uk
Allister McCullough Antrim 07711 089600 amccullough@wwsires.co.uk
Bryan Graham Antrim 07855 663731 bgraham@wwsires.co.uk
Andrew Kennedy Antrim 07762 168039 akennedy@wwsires.co.uk
William Bolton Antrim & Londonderry 07821 062030 wbolton@wwsires.co.uk
Jonny Lyons Antrim & Londonderry 07709 430517 jlyons@wwsires.co.uk
Rachel Pepper South Antrim & Down 07724 310541 rpepper@wwsires.co.uk
COWMANAGER
General Enquiries 01516 620351 cowmanager@wwsires.co.uk
Ben Nottage CowManager Sales 07983 509195 bnottage@wwsires.co.uk
Christo Steyn CowManager Specialist 07429 100981 csteyn@wwsires.co.uk
Ashley Ames CowManager Specialist 07724 310542 aames@wwsires.co.uk
NORTHERN IRELAND GENETIC CONSULTANTS
Scott Cromwell Armagh & Down 07596 094868 scromwell@wwsires.co.uk
Paul Dunn Armagh & Down 07837 383040 pdunn@wwsires.co.uk
Andrew Magowan Armagh & Down 07710 525893 amagowan@wwsires.co.uk
Richard Charles Tyrone & Londonderry 07837 349364 rcharles@wwsires.co.uk
Matthew Breen Fermanagh & Tyrone 07702 495299 mbreen@wwsires.co.uk
Richard Walker Londonderry, Tyrone & Fermanagh 07354 201257 rwalker@wwsires.co.uk
WORLD WIDE SIRES REPRODUCTIVE SOLUTIONS
Steve Whitford-Williams Service Operations Manager 07715 676291 swhitford-williams@wwsires.co.uk
GLOBAL DAIRY SOLUTIONS
Dr. John Cook BVSC DCHP MRCVS RCVS Global Technical Consultant 07777 640319 jcook@wwsires.com
Jo Burton BSc. MSc Geneticist 07772 151406 jburton@wwsires.co.uk
Ervin McKinstry WWS UK General Manager 07754 480402 emckinstry@wwsires.co.uk
Brian Cullen Business Development Manager 07745 205215 bcullen@wwsires.co.uk