April 29, 2013
New labeling of polled Holsteins in the U.S.
New labeling of polled Holsteins in the U.S., which was approved by the Holstein Association USA board of directors at their spring meeting:
- PO Observed polled
- PC Tested heterozygous polled
- PP Tested homozygous polled
- TP Tested free of the polled condition (horned)