1 minute read

INFORMATION

AOD: The actual age of the dam when she calved the bull offered for sale.

CE: Calving Ease, U =Unassisted

Advertisement

BW: Actual weight at birth

WW: Weaning weight in lbs. Adjusted to 205 days.

WI: Weaning Index - Weaning weight as a % of average WW of contemporaries.

YW: Yearling weight in lbs. - calculated as adjusted 205 day weight + (ADG on feed x 165 days)

YI: Yearling Index - Weight gain from Weaning to Yearling as a % of average gain of contemporaries. NOTE: All Indexes are calculated within herds, as management may differ somewhat.

EPD s : EXPECTED PROGENY DIFFERENCES

EPDs are a powerful tool that is available for making genetic progress. EPDs incorporate the performance of the individual, along with the performance of all its relatives.

CE: Calving ease - the higher number predicts more calving ease.

BW: Birth. A lower EPD predicts lower birthweights.

WW: Weaning. High weaning EPDs predict higher weaning weights.

YW: Yearling. Higher yearling EPDs indicate greater expected yearling weights.

MILK: Milk EPD should be used to predict the milking ability of the daughters of the bulls in question. Higher milk EPDs project more milk.

REA: Rib Eye Area in sq. in. Describes difference in rib eye size.

MARB: Marbling. Describes marbling potential of calves expressed as difference in grade score.

FAT: Fat thickness in inches. Predicts difference in fat measured at the 12th rib.

CW: Carcass weight in lbs. Predicts differences in hot carcass weight of progeny.

Percentile Tables have been added to take some of the confusion out of the EPDs. A trait listed as 5% would mean that bull is in the top 5% of the breed for that trait. 49% would be slightly higher than breed average, while 51% would be slightly lower than breed average.

TEST INCLUDES PARENT VERIFICATION

This article is from: