#PolledPlace

TESTING FOR POLLED

UC-DAVIS POLLED TEST

There are 2 independent origins of polled, one found in Holstein-Friesian and Jersey breeds (Pf), the other in many European breeds of Celtic origin (Pc) such as Angus, Blonde d’Aquitaine, Dexter, Limousin, Charolais, and Hereford, among others. Polledness is dominant; a polled animal can have one or two copies of the gene. All offspring of a bull with 2 copies of polled (homozygous) will be polled.  Genetic testing is a cost-effective means to determine if a polled animal has 1 or 2 copies of the gene. The Veterinary Genetics Laboratory offers a test for the polled gene to assist breeders in selecting cattle that have 2 copies of Polled gene. H/H HORNED- No copies of either Polled molecular marker are present. Pf/H POLLED- One copy of the Polled-Friesian molecular marker is present.  At least 50% of the offspring will be polled.Pf/Pf    POLLED. Two copies of the Polled-Friesian molecular marker are present. All offspring will be polled. Pc/H POLLED- One copy of the Polled-Celtic molecular marker is present. At least 50% of the offspring will be polled. Pc/Pc POLLED- Two copies of the Polled-Celtic molecular marker are present.  All offspring will be polled. Pc/Pf POLLED- One copy of Polled-Celtic and 1 copy of Polled-Friesian molecular markers are present. All offspring will be polled.


how polled works

polled is a dominant trait

PP = Homozygous Polled or True Polled

Pp = Heterozygous Polled or Polled

pp = Horned



BREED ASSOCIATION CODES FOR POLLED

HOLSTEIN ASSOCIATION USA

PO = Polled Observed; PC = Polled Confirmed; PP = Homozygous Polled

HOLSTEIN CANADA 

Brown Swiss USA  

P = Polled (previously NP = Naturally Polled)


#polledplace - your source for polled dairy cattle

your source for POLLED DAIRY CATTLE

HISTORY OF POLLED

HOLSTEIN HISTORY

by Dr. Larry Specht


JERSEY HISTORY

by Jay E. Herron


POLLED PIONEERS

by Ronald F. Eustice - available on Amazon