Page 10 - Dandaloo Sale Catalogue eBook.pdf

Scrotal Size EBV (cm) is calculated from the circumference of the at the same carcase weight than will sires with lower EMA EBVs.
scrotum taken between 300 and 700 days of age and adjusted to Rib Fat and Rump Fat EBVs (mm) are calculated from
400 days of age. This EBV is an estimate of an animal’s genetic merit measurements of subcutaneous fat depth at the 12/13-rib site
for scrotal size. There is also a small negative correlation with age and the P8 rump site (from live animal ultrasound scans and
of puberty in female progeny and therefore selection for increased from abattoir carcases) and are adjusted to a standard 400 kg
scrotal size will result in reduced age at calving of female progeny. carcase. These EBVs are indicators of the genetic differences in
Days to Calving EBV (days) indicates the fertility of the fat distribution on a standard 400 kg carcase. Sires with low, or
daughters of the sire. It is the time interval between the day negative, fat EBVs are expected to produce leaner progeny at any
when the female is first exposed to a bull in a paddock mating to particular carcase weight than will sires with higher EBVs.
the day when she subsequently calves. A negative EBV for days Retail Beef Yield EBV (%) indicates genetic differences between
to calving indicates a shorter interval from bull-in date to calving animals for retail yield percentage in a standard 400 kg carcase.
and therefore higher fertility. Sires with larger EBVs are expected to produce progeny with higher
Carcase Weight EBV (kg) is based on abattoir carcase records yielding carcases.
and is an indicator of the genetic differences in carcase weight at Intramuscular Fat EBV (%) is an estimate of the genetic
the standard age of 750 days. difference in the percentage of intramuscular fat at the 12/13th rib
Eye Muscle Area EBV (sq cm) is calculated from measurements site in a 400 kg carcase. Depending on market targets, larger more
from live animal ultrasound scans and from abattoir carcase data, positive values are generally more favourable.
adjusted to a standard 400 kg carcase. This EBV estimates genetic Docility EBV (%) is an estimate of the genetic differences
differences in eye muscle area at the 12/13th rib site of a 400 between animals in temperament. Docility EBVs are expressed as
kg dressed carcase. More positive EBVs indicate better muscling differences in the percentage of progeny that will be scored with
on animals. Sires with relatively higher EMA EBVs are expected to acceptable temperament (ie. either “docile” or “restless”).
produce better-muscled and higher percentage yielding progeny
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