Page 10 - Red Hill Farms 14th Annual Red Angus Bull Sale – March 16, 2019

Red Angus Guide to EPDs

HB ...... HerdBuilder Index – Need bulls for developing CEM .... Calving Ease Maternal – Another number to
a profi table cowherd and maximizing the value of pay attention to if you are retaining heifers. Selecting
marketed progeny? Select a bull with a high HB value. bulls with a high CEM will increase the probability of
those daughters calving unassisted.
GM ...... GridMaster Index – If you market all of your
calf crop and want to increase the value of that calf STAY.... Stayability – The most important trait if your
crop, select a bull with a high GM value to maximize goal is developing cows that stay productive, thus
your profi t. increasing your profi tability. Bulls that have a high
Stay EPD are expected to sire daughters that remain
productive in the herd until at least 6 years of age.
CED ..... Calving Ease Direct – Breeding Heifers? Select
bulls with a high CED to increase the probability that
the heifers will calve unassisted. MARB .. Marbling Score – Select bulls with high MARB
EPD to increase the number of progeny that grade
Choice or Prime.
BW...... Birth Weight – Predicts differences in birth
weight. BW is included in the CED EPD, so simplify
your decisions by selecting bulls based on CED instead YG ...... Yield Grade – Marketing calves on a grid?
of BW. Placing selection pressure on YG EPD will decrease
the number of YG discounts on grid-marketed
progeny.
WW ..... Weaning Weight and YW ....Yearling Weight –
Predicts differences in weight at weaning and yearling.
While selection based on these growth measures can CW...... Carcasss Weight – Selecting bulls with a
increase your payweight, be cautious what the bull’s high CW EPD will increase the weight of the hanging
other EPDs are. carcass, which directly impacts revenue.

Milk .... Milk – Predicts differences in weaning weight REA ..... Rib Eye Area – Need to add muscle? Select
of daughter’s progeny due to milk production. bulls with a high REA EPD to increase rib eye area,
which favorably increases Yield Grade.
ME ...... Maintenance Energy – Selecting bulls with a
lower ME EPD will decrease the amount of feed his FAT ..... Backfat – Need to reduce waste in carcasses?
daughters will require to maintain body weight. Select bulls with a low FAT EPD to reduce backfat,
which favorably increases Yield Grade.
HPG..... Heifer Pregnancy – Retaining heifers? Select
bulls with a high HPG to increase the percentage of
exposures that result in a calving observation.

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8 – Red Hill Farms