Beef Genetic Management Guide - Angus Journal

BII$: Brahman Influence Index (Hereford) - This index is similar
to BMI$, except Hereford bulls are used in rotational crossing
with Brahman rather than Angus. Greater emphasis placed on
traits deficient in Brahman-cross cattle, (fertility and age at
puberty) and less on acceptable traits (growth and calving ease).
CHB$: Certified Hereford Beef Index (Hereford) - A terminal sire
index where Hereford bulls are mated to British-cross cows and
all offspring are sold as fed cattle on a CHB pricing grid.
Calving Ease Ratings
Angus, Red Angus and Hereford
3333 Top 10 percent of the breed for low birth weight
333 Top 60 percent of the breed for low birth weight
33 Above bottom 10 percent of the breed for low birth weight
3 Bottom 10 percent of the breed for low birth weight
Simmental and Charolais
3333 Top 10 percent of the breed for low birth weight
333 Top 40 percent of the breed for low birth weight
33 Above bottom 10 percent of the breed for low birth weight
3 Bottom 10 percent of the breed for low birth weight
***Calving Ease Ratings take calving ease EPDs and accuracies
into consideration.
Sire Information
Heterozygous Polled - Polled bulls that carry one horned gene.
May sire calves with horns when mated to cows carrying the
horned gene.
Homozygous Polled - Bulls with a 99.9 percent probability of
being homozygous polled, having been DNA tested or test-mated
to horned and heterozygous polled cows. Expect these bulls to
sire all polled calves.
Inconclusive DNA test - Bull was tested, but the lab was unable
to determine whether the animal is homozygous or heterozygous.
Double Polled - Young, unproven sires whose parents are both polled.
Heterozygous Black - Black bulls that carry one red gene. Expect
50 percent black calves when the bull is mated to non-diluted red cows.
Homozygous Black - Bulls with a 99.9 percent probability of
producing all black calves when mated to non-diluted red and
black cows.
Dilution Gene - Cattle carrying the dilution gene will be gray,
red or yellow. Non-dilutor cattle will appear black or darker red.
Beef Staff Recommendations - The Beef Genetics Staff
provides recommendations based on observations of the bull’s
progeny, as well as knowledge of the sires and dams in the
pedigree. Information is only provided on bulls with progeny.
Genex Quest Graduate – The Genex Quest Program is
designed to collect performance and carcass data on Genex
young sires from nationwide sources representing various types
of operations. The Quest Graduate log appears on sires that have
excelled and graduated from the program.
GenChoice – Sires with GenChoice availability are noted
throughout the Beef Genetic Management Guide. The
GenChoice sexed semen product line is available in GenChoice
75 and GenChoice 90 with the options of male- or femalesorted
semen. Product line and gender available vary among sire,
contact your local Genex representative or 888.333.1783.
Our commitment is to your profitability.
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profitability for both U.S. and Canadian customers alike. That same commitment to the beef
industry is why Genex teamed up with Farm Plan in the U.S. and AgLine in Canada to deliver
financing you can count on when you need it most.
Farm Plan and AgLine provide your operation with the purchasing power and flexible payment
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