Sim/SimAngus EPDs

by getpenned

Units of Measure:

EPD DEFINITIONS FROM SIMMENTAL.ORG

  • CE: Reported as the difference in percentage of calves being born unassisted out of first-calf heifers, with higher values representing greater calving ease.
  • BW: Reported as the difference in pounds of calf birth weight.
  • WW: Reported as the difference in pounds of progeny weaning weight.
  • YW: Reported as the difference in pounds of progeny yearling weight.
  • ADG: Reported as the difference in post-weaning pounds gained on a daily basis.
  • DMI: Reported as the difference in pounds of daily dry matter intake.
  • MCE: Reported as the difference in percentage of daughters calving unassisted as first-calf heifers.
  • MILK: Reported as the difference in maternal pounds of weaning weight from an individual’s daughters due to milk.
  • MWW: Reported as the pounds of weaning weight expressed in daughters’ progeny due to the milk production of the daughter and the direct genetic effect for weaning growth.
  • STAY: Reported as the difference in probability of a sire’s daughters staying in the herd until 6 years of age, given that they calved as a 2-year-old.
  • DOC: Reported as the difference in yearling-age progeny temperament, represented as a difference in probability that progeny will be scored as a 1, rather than a 2–6 on the docility scale (1 = docile disposition; 6 = extremely aggressive).
  • CW: Reported as the difference in pounds of progeny carcass weight.
  • YG: Reported as the difference in progeny USDA Yield Grade score units (1–5).
  • MARB: Reported as the difference in progeny carcass marbling score.
  • BF: Reported as the difference in inches of external backfat at the 12th and 13th rib.
  • REA: Reported as the difference in square inches of ribeye area between the 12th and 13th rib.
  • $API: Evaluates sires for use on the entire cow herd (bred to both Angus first-calf heifers and mature cows) with the portion of their daughters required to maintain herd size retained and the remaining heifers and steers put on feed and sold on a grid (carcass grade and yield).
  • $TI: Evaluates sires for use on mature Angus cows with all offspring put on feed and sold on a grid (grade and yield).
  • $GAIN: A prediction designed to identify animals that are more profitable in the feedlot by converting feed into weight. $Gain is a combination of DMI and ADG, where ADG is weighted by the value of a pound of gain, and DMI is negatively weighted by the cost of a pound of dry matter. $Gain is expressed as the dollar difference per head per day during the post-weaning period.