ANGUS EPD AND $VALUE DEFINITIONS
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HOW TO READ THE REPORT Each bull listed in this report is comparable to every other bull in the database. The analysis takes into account only the differences expressed in each herd in which the bulls were used. For example, bull A has a weaning EPD of +30 lb. and bull B has a weaning EPD of +20 lb. If you randomly mate these bulls in your herd, you could expect bull A’s calves to weigh, on average, 10 lb. more at weaning than bull B’s progeny (30 - 20 = 10).
PRODUCTION
MATERNAL
REGISTRATION BIRTH DATE
CED Acc
BW Acc +2.4 .99
WW Acc
YW Acc +98 .99
RADG Acc
DMI Acc +.27 .99
YH Acc
SC Acc
HP Acc
CEM Acc
MW Acc +19 .98
MH Acc
Milk Acc
MKH MkD
TATTOO
NAME
$EN
80
Animal Name (Individual detail link)
98765435251 07/08/80
+10 .99
+59 .99
+.16 .99
+.3 .99
+1.06 .99
+13.1 .80
+10 .95
+.3 .99
+23 .99
+3
2681 11634
MANAGEMENT
CARCASS
Claw Acc
Doc Acc
Angle Acc
PAP Acc
HS Acc +.56 .48
CW Acc +37 .89
Marb Acc
RE Acc +.22 .89
Fat Acc
C Grp/Pg
U Grp/Pg
+.50 .85
+6 .99
+.51 .85
+1.14 .43
+.55 .90
+.017 .88
17 51
5 10
ANGUS-ON-DAIRY $VALUES
$VALUES
$AxH %
$AxJ %
$C
$M
$W
$F
$G
$B
-133 95%
-134 95%
+168
+45
+60
+46
+29
+95
EXPECTED PROGENY DIFFERENCE (EPD), Expected Progeny Difference (EPD) , is the predic- tion 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.
YEARLING HEIGHT EPD (YH), is a predictor of a sire’s ability to transmit yearling height, expressed in inches, compared to that of other sires.
SCROTAL CIRCUMFERENCE EPD (SC), expressed in centimeters, is a predictor of the difference in transmitting ability for scrotal size compared to that of other sires.
MATERNAL EPDs HEIFER PREGNANCY (HP), is a selection tool to increase the probability or chance of a sire’s daughters becoming pregnant as Àrst-calf heifers during a normal breeding season. A higher EPD is the more favorable direction and the EPD is reported in percentage units. CALVING EASE MATERNAL (CEM), is expressed as a difference in percentage of unassisted births with a higher value indicating greater calving ease in Àrst-calf daughters. It predicts the average ease with which a sire’s daughters will calve as Àrst-calf heifers when com - pared to daughters of other sires. MATERNAL Milk EPD (Milk), is a predictor of a sire’s genetic merit for milk and mothering ability as expressed 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.
EPDs are enhanced by genomic results generated by:
$VALUE INDEX ($VALUE), an economic selection index allows multiple change in several different traits at once pertaining to a speciÀc breeding objective. The $Value is an estimate of how future progeny of each sire are expected to perform, on average, compared to progeny of other sires if the sires were randomly mated to cows and if calves were exposed to the same environment. ACCURACY (ACC), is the reliability that can be placed on the EPD. An accuracy of close to 1.0 indicates higher reliability. Accuracy is impacted by the number of progeny and ancestral records included in the analysis. PRODUCTION EPDs CALVING EASE DIRECT (CED), is expressed as a difference in percentage of unassisted births, with a higher value indicating greater calving ease in Àrst-calf heifers. It predicts the average difference in ease with which a sire’s calves will be born when he is bred to Àrst-calf heifers.
HERDS (MkH), indicate the number of herds from which daughters are reported.
DAUGHTERS (MkD), reÁects the number of daughters that have progeny weaning weight records included in the analysis.
MATURE WEIGHT EPD (MW), expressed in pounds, is a predictor of the difference in mature weight of daughters of a sire compared to the daughters of other sires.
BIRTH WEIGHT EPD (BW), expressed in pounds, is a predictor of a sire’s ability to transmit birth weight to his progeny compared to that of other sires.
MATURE HEIGHT EPD (MH), expressed in inches, is a predictor of the difference in mature height of a sire’s daughters compared to daughters of other sires.
WEANING WEIGHT EPD (WW), expressed in pounds, is a predictor of a sire’s ability to transmit weaning growth to his progeny compared to that of other sires.
COW ENERGY VALUE ($EN), expressed in dollar savings per cow per year, assesses differ- ences in cow energy requirements as an expected dollar savings difference in daughters of sires. A larger value is more favorable when comparing two animals (more dollars saved on feed energy expenses). Components for computing the cow $EN savings difference include lactation energy requirements and energy costs associated with differences in mature cow size. MANAGEMENT EPDs DOCILITY (Doc), is expressed as a difference in yearling cattle temperament, with a higher value indicating more favorable docility. It predicts the average difference of progeny from a sire in comparison with another sire’s calves. In herds where temperament problems are
YEARLING WEIGHT EPD (YW), expressed in pounds, is a predictor of a sire’s ability to transmit yearling growth to his progeny compared to that of other sires.
RESIDUAL AVERAGE DAILY GAIN (RADG), expressed in pounds per day, is a predictor of a sire’s genetic ability for postweaning gain in future progeny compared to that of other sires, given a constant amount of feed consumed.
DRY MATTER INTAKE (DMI), expressed in pounds per day, is a predictor of difference trans- mitting ability for feed intake during the postweaning phase, compared to that of other sires.
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Tanner Farms
November 7, 2020
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