Newly Revised Specht Report Breeding Performance Summary Available
Posted: Dec 31, 2008
The Sire-Son and Prefix reports were developed at Penn State University by Dr. Larry Specht and first published in the mid 1970s. The reports have been used to compare the performance of a sire with his sons and provide a list of the prefixes that are providing the top Holstein bulls to the A.I. industry in the US. The Bull-Mother report is a spin-off from the original Sire-Son and Prefix reports and lists dams that have provided the top Holstein bulls.
Sire-Son and Prefix reports were developed at Penn State University by Dr. Larry Specht and first published in the mid 1970s. The reports have been used to compare the performance of a sire with his sons and provide a list of the prefixes that are providing the top Holstein bulls to the A.I. industry in the US. The Bull-Mother report is a spin-off from the original Sire-Son and Prefix reports and lists dams that have provided the top Holstein bulls.
