Combined Value ($C), an index expressed in dollars per head, includes all traits that make up both $M and $B with the objective that commercial producers will replace 20% of their breeding females per year with replacement heifers retained within their own herd. The remaining cull heifer and steer progeny are then as- sumed to be sent to the feedlot where the producers retain ownership of those cattle and eventually sell them on a quality-based carcass merit grid. Beef Value ($B), expressed in dollars per carcass, represents the expected aver- age differences in the progeny postweaning performance and carcass value com- pared to progeny of other sires. This index assumes commercial producers wean all male and female progeny, retain ownership of these animals through the feedlot phase, and market these animals on a quality-based carcass grid. Weaned Calf Value ($W), expressed in dollars per head, provides the expected difference in future progeny preweaning performance from birth to weaning. In- creased selection pressure on $W increases weaning and maternal milk traits while increasing mature cow size. Maternal Weaned Calf Value ($M), an index expressed in dollars per head, pre- dicts profitability differences in progeny due to genetics from conception to weaning. $M is built off of a self-replacing herd model where commercial cattlemen replace 25% of their breeding females in the first generation and 20% in subsequent gen - erations. Remaining cull females and all male progeny are sold as feeder calves. Increased selection pressure on $M aims to decrease overall mature cow size and improve foot structure and fertility while maintaining weaning weights consistent with today’s production. Ribeye Area (RE), expressed in square inches, is a predictor of the difference in ribeye area of a sire’s progeny compared to progeny of other sires. Marbling (Marb), is expressed as a fraction of the difference in USDA marbling score of a sire’s progeny compared to progeny of other sires. Maternal Milk (Milk), is a predictor of a sire’s genetic merit for milk and mother- ing ability in his daughters compared to daughters of other sires. In other words, it is that part of a calf’s weaning weight attributed to milk and mothering ability.
Expected Progeny Difference (EPD), is the prediction of how future progeny of each animal are expected to perform relative to the progeny of other animals listed in the database. EPDs are expressed in units of measure for the trait, plus or minus. Interim EPDs may appear on young animals when their performance has yet to be incorporated into the American Angus Association National Cattle Evaluation (NCE) procedures. This EPD will be preceded by an “I”, and may or may not include the animal’s own performance record for a particular trait, depending on its availability, appropriate contemporary grouping, or data edits needed for NCE.
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M R A BLOCKADE 5128
BD: 1/16/25
Reg No: 21460339
Birth Wt.
Adj. Scrotal 1283 / 114 41.8 Adj. YW / Ratio Adj. WW / Ratio 91 721 / 113
Sire: 4M B lockade 120 { { Dam M R A BLACKBIRD 0131 M R A BLACKBIRD 7244 SITZ ALPINE 11076
KM BROKEN BOW 002
BALDRIDGE JENNINGS Z064 SITZ ELLUNAS ELITE 1874
MR BLACKBIRD 8241
CED BW WW YW Milk Marb RE +6 +1.6 +81 +137 +28 +0.73 +0.84 $M $W $B $C +109 +92 +153 +307 Yearling Weight (YW), expressed in pounds, is a predictor of a sire’s ability to trans- mit yearling growth to his progeny compared to that of other sires. Weaning Weight (WW), expressed in pounds, is a predictor of a sire’s ability to transmit weaning growth to his progeny compared to that of other sires. Birth Weight (BW), expressed in pounds, is a predictor of a sire’s ability to trans- mit birth weight to his progeny compared to that of other sires. Calving Ease Direct (CED), is expressed as a difference in percentage of unas- sisted births, with a higher value indicating greater calving ease in first-calf heifers. It predicts the average difference in ease with which a sire’s calves will be born when he is bred to first-calf heifers.
MT. RUSHMORE ANGUS RANCH PRODUCTION SALE 3
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