The use of independent culling levels and selection index procedures in selecting future sires for artificial insemination

Predicting daughter milk production from dam index

“…Most of those do not differ in conclusion. Butcher (1973) Using data from seven bull studs Vinson (1971) reported regression co efficients between breeding values for milk yield of son and sire, son and dam, and son and midparent (sic) to be 35% to 45% of expected regressions.…”