Weaning EPD (pounds) is calculated from the weight of progeny taken between 80 and 300 days of age. Values are adjusted to 205 days and for age of dam. This EPD is the best single estimate of an animal's genetic merit for growth to early ages.
Yearling EPD (pounds) is calculated from the weight of progeny taken between 301 and 450 days of age, adjusted to 365 days and for age of dam. This EPD is the best single estimate of a sire's genetic merit for yearling weight.
Scrotal Circumference EPD (centimetres) is calculated from measurements of scrotal size in yearling bulls, adjusted to 365 days. Scrotal circumference is a good indicator of puberty, fertility and semen quality/quantity. Increased scrotal size will also result in decreased age of puberty in daughters and greater lifetime production. Positive EPD values indicate larger scrotal circumference.
Milk EPD (pounds) is an estimate of an animal's milking ability. For sires, this EPD indicates the effect of the daughter's milking ability, inherited from the sire, on the weaning and yearling weights of her calves. For dams, it indicates her own milking ability.
Maternal Weaning Weight EPD (pounds) is a combination of Milk and Weaning EPDs and estimates the genetic merit of the animal to produce a calf at weaning.
Fat EPD (inches) is calculated from live animal ultrasound measurements and from carcass measurements of subcutaneous fat depth at the 12/13th rib site. Data is adjusted to a standard 750 lb. carcass weight. Sires with lower EPDs are expected to produce leaner progeny at any particular carcass weight than are sires with higher EPDs.
Rib Eye Area EPD (square inches) is calculated from live animal ultrasound measurements and carcass measurements of rib eye area taken between the 12th and 13th rib, and adjusted to a 750 lb. carcass weight. Rib eye area is closely associated with percent retail product when carcass weight is held constant. Sires with more positive Rib Eye Area EPDs are expected to produce better muscled and higher percentage yielding progeny at the same carcass weight than will sires with lower Rib Eye Area EPDs.
Marbling Score EPD is calculated from numeric scores assigned to each carcass quality grade division. Data is adjusted to a standard carcass weight of 750 lb. Positive EPD values indicate greater numeric marbling scores at the same carcass weight.
Retail Yield EPD (percent) estimates the genetic differences between animals in percentage retail beef yield for a standard carcass weight of 750 lb. Positive EPD values indicate a higher percentage retail yield at the same carcass weight.
Carcass Weight EPD (pounds) is calculated from carcass weight data from the progeny of sires, adjusted to 450 days of age. Positive values indicate heavier carcass weights at the standard age of 450 days.
Stayability EPD is calculated from calving and pedigree information. It predicts genetic differences in the likelihood that daughters will remain in production until six years of age or beyond. EPDs are expressed as deviations from a 50% probability.
Docility EPD is calculated from measurements of temperament score.
Positive EPD values indicate a tendency towards more acceptable temperament.
Accuracy - Each EPD is presented with an associated accuracy figure. Accuracy expresses the reliability of the EPD and is presented as a number between .01 and .99
# Herds - is the number of herds from which progeny data on the animal has been analysed.