Acronyms and Index
Categories and Segments
Segments / Blonde d’Aquitaine Bull Category:
Balance:
Bulls with the most comprehensive profiles for both producing high-performing weaned calves and efficient replacement heifers.
Easy Calving:
Bulls with confirmed calving ease for use on heifers.
Morphology:
Bulls that stand out in their production for the great homogeneity in the phenotype of their descendants. From dual-purpose breeding to dual-purpose meat, they make their mark on production.
Morphology:
Bulls that stand out in their production for the great homogeneity in the phenotype of their descendants. From dual-purpose breeding to dual-purpose meat, they make their mark on production.
Avant-1ère:
Bulls with very favorable genomic trends, resulting from genetic combinations developed by AURIVA program technicians on cow lines with proven production potential.
Early Meat:
Bulls used for terminal crossing (in purebred as well as crossbred) and intended for the production of veal calves.
Aurizon:
Bulls offered exclusively to VA4 breeders to evaluate the offspring of the best new-generation males on-farm.
Segments / AUBRAC, GASCON, BAZADAIS Bull Category
Station-Evaluated:
Recently tested young bulls, selected for their morphology, functional aptitudes, and growth potential. They provide genetic renewal with modern, measured, and standardized profiles from the station.
Confirmed on Weaning Values:
Proven bulls whose meat performance, growth, and morphology are validated on their offspring at weaning. Ideal for ensuring the production of consistent, heavy, and well-conformed weaned calves.
Confirmed on Maternal Values:
Bulls whose daughters have proven their breeding qualities: fertility, pelvis, conformation, and milking ability. This segment is preferred for producing functional, durable females suitable for replacement.
Segments / YPERIOS Bull Category
Secure:
Bulls that ensure easy calving, short gestations, and calves that start very quickly. The ideal segment to guarantee peace of mind, ease of work, and maximum safety for both heifers and cows.
Optimize:
Bulls that offer the best compromise between ease of birth, calf quality, and added value at sale. Consistent, compact, and well-conformed profiles, designed to improve profitability without complicating herd management.
Maximize:
Bulls selected to make a difference in growth and conformation from the first weeks. To produce premium, heavy, muscular calves highly sought after in veal production.
Segments / Abondance Bull Category
Rates:
Bulls very high in protein/fat content and a range dedicated to cheese production. Ideal for optimizing PDO yields and enhancing milk quality.
Milk:
Bulls selected to be part of this highly productive category with an entry ticket of +800 kg of milk. For farms seeking direct progress in volume without sacrificing udder, rates, or functional traits.
Frame:
Bulls providing power, width, and a very good frame (height + pelvis). To strengthen the robustness, feed intake capacity, and functionality of the animals.
Udder:
Bulls that transmit udders with low volume, good attachment, and functional teats. For durable cows, easy to milk, and suitable for mountain pastures.
Functional Traits:
Bulls focused on fertility, udder health, longevity, milking speed, and temperament. A range designed to reduce costs and improve working comfort.
Segments / Tarentaise Bull Category
Cheese Quality:
Bulls distinguished by their rates, combining very high protein and fat content with complete morphology. To produce females perfectly meeting the requirements of cheese industries.
Milk Production:
Very dairy bulls (> +600 kg) with high levels of protein and fat. Perfect for farms seeking a direct gain in liters of milk.
Frame:
Bulls powerful in body, width, and musculature, while maintaining good milk potential. Ideal for restoring capacity and robustness to cows in mountain systems.
Udder:
Bulls specialized in udder structure quality: high attachments, pronounced median suspensory ligament, and well-placed teats. For functional udders, suitable for walking and mountain pasture systems.
Reliability:
Bulls focused on essential functional traits: udder health, longevity, and reproduction. Designed to secure herd economics with durable, healthy, and consistent cows.
Serenity:
Bulls combining milking speed and calm temperament for an easy-to-manage herd. Ideal for improving milking comfort and daily work fluidity.
Beef Indexes
Maternal Quality Indexes
CR: Growth Potential (at 18 months)
DM: Muscular Development (at 18 months)
DS: Skeletal Development (at 18 months)
IMOCR: Morphology Growth Synthesis
IFER: Fertility Synthesis IVEL: Calving Ability Synthesis
IMER: Incidence of Mother at Weaning Synthesis
Plait: Milk Production
IQM: Maternal Qualities Synthesis
Iboval Index
IFNAIS: Calving Ease
CR sev: Growth Potential at Weaning
DM sev: Muscular Development at Weaning
DS sev: Skeletal Development at Weaning
ISEVR: Weaning Selection Synthesis
CD: Coefficient of Determination
AVel: Daughters’ Calving Abilities
ALait: Milking Ability
IVMAT: Synthetic Maternal Value at Weaning
FOSsev: Bone Fineness
Young Beef Indexes on
Farm
ICRCjbf: Growth Potential
CONFjbf: Conformation
IABjbf: Carcass Traits Synthesis
Calculated from bull performance
ICRCvbf: Growth Potential
Post-Weaning Farm Indexes
CRpsf: Post-Weaning Growth
COMPsev: Calf Behavior at Weaning Scoring
DMpsf: Post-Weaning Muscular Development
DSpsf: Post-Weaning Skeletal Development
Afpsf: Post-Weaning Functional Traits
BASpsf: Post-Weaning Pelvis
RENOUV: Replacement Potential
IVV: Calving-to-Calving Interval
Terminal Crossbreeding Indexes
IFNxt:
Calving Ease in Dairy Cows
MPv3s:
Early Muscularity at 3 weeks
CONFvbf:
Conformation evaluated on veal calves on farm
VIAxt:
Improved Calf Viability
GCxt:
Short Gestation Periods
FERTIxt:
Most Fertile Bulls
FOSv3s: Bone Fineness at 3 weeks
ICRCvbf: Growth evaluated on veal calves on farm
COULvbf: Meat Color evaluated on veal calves on farm
IABvbf: Carcass Traits evaluated on veal calves on farm
% light coats: % Light Coat Color of Calves
% solid coats: % Solid Coat Color (no spots)
Dairy Indexes
Production Index
CPF: Female Parentage Coefficient
ISU: Unique Synthesis Index
ISUO: Unique Synthesis Index Originality
INEL: Dairy Economic Index
MP: Protein Content
MG: Fat Content
TP: Protein Rate
TB: Butyric Rate
LAIT: Milk Production
Morphology Index
MO: Morphology
HS: Sacrum Height
LP: Chest Width
PP: Chest Depth
PF: Flank Depth
LB: Pelvis Length
LT: Trochanter Width
IB: Pelvis Inclination
AP: Conformation
AJ: Hock Angle
ET: Heel Thickness
OJ: Hock Opening
MA: Udder
VO: Volume
EQ: Balance
AA: Fore Udder Attachment
AH: Rear Udder Height
AL: Rear Udder Width
SI: Suspensory Ligament
EA: Teat Placement (Fore)
OR: Orientation
TR: Teats
LO: Teat Length
FO: Teat Shape
Functional Indexes
AB: Carcass Traits (in Abondance)
MU: Carcass Traits (in Tarentaise)
VT: Milking Speed
TE: Temperament
LGF: Longevity
NAI: Calving Ease
STMA: Udder Health
CEL: Cells
MACL: Clinical Mastitis
REPRO: Reproduction
FERV: Fertility
FERG: Heifer Fertility
IVIA 1: Calving to AI 1 Interval
VEL: Calving Ease