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- VanRaden, P.M.
- Journal of dairy science 1992 v.75 no.11 pp. 3136
- dairy cows; inbred lines; heterosis; ancestry; equations; breeding value; algorithms; inbreeding depression
- ... Inbreeding coefficients for 9.3 million registered Holsteins were computed by constructing a small relationship matrix for each animal and its ancestors instead of one large matrix for the whole population. Recent cows averaged 2.0% inbreeding if each pedigree path was extended to the most recent ancestor born before 1960. Inbreeding was underestimated because some pedigrees included unknown ances ...