New procedures have recently introduced in the UK to evaluate beef bulls used to inseminate dairy cows. Univariate threshold model analyses are used to predict the Transmitting Ability for both calving ease and calf quality. These assessments are based on survey data for calving difficulty and calf conformation as recorded in commercial dairy farms, using heritability estimates from within the same data set.

B. J McGuirk, I. Going, A. R Gilmour

Proceedings of the World Congress on Genetics Applied to Livestock Production, Volume 17. Genetics and breeding of dairy and beef cattle, swine and horses, , 165–168, 1994
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