In-station and on-farm genetic evaluations in bulls

PATBQ plays a key role in genetic evaluation in young purebred bulls , tested both in multisource cattle breeding centers (stations) and in breeders farms.

Measured data on bulls, such as birth weight, weight gain, carcass quality traits (ultrasound measurements), hip height and scrotal circumference, is combined with pedigree data to obtain genetic values (EPD and ABC) which are highly useful in guiding bulls selection and purchase.

Conformation ratings may also be collected to provide additional information on front and back legs and musculature.

photos credits : Éric Lepage (black bull) and Diane Allard (feedlot)

Percentiles of ABCs

Correspondence of the percentile ranks with their ABCs values (imperial system and international unit system)

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Summary of major traits considered in genetic evaluation programs
Simulation showing that using improver bulls for prioritized traits in a business is a winning strategy (Update March 2023)

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