Homozygous Polled - These bulls have been proven to produce all polled
calves. They have been mated to horned and heterozygous polled cows and have
produced all polled calves. If a bull is bred to 10 horned cows and produces
all polled calves, he is said to have a 99.9% probability of being
homozygous polled.
Homozygous Black - These are bulls that have proven to produce all
black bodied or black factored bodied progeny. The spotting gana, which is a
separate gene, is responsible for the white color in the face, feet, tails,
underline, ect. A homozygous black bull, therefore, may sire black or
black factored progeny that have white on their face, feet, or underline but do
have a black or black factored body color. Homozygous black bulls should produce
black of black factored progeny when bred to black, black factored, red, or
yellow females.
Quality Grade
