Page 12 - Okaka Angus Sale 2021 ebook

Accuracy

Accuracy (%) is based on the amount of performance information available on
the animal and its close relatives - particularly the number of progeny analysed.
Accuracy is also based on the heritability of the trait and the genetic correlations
with other recorded traits. Hence accuracy indicates the “confidence level” of
the EBV. The higher the accuracy value the lower the likelihood of change in the
animal’s EBV as more information is analysed for that animal or its relatives.
Even though an EBV with a low accuracy may change in the future, it is still the
best estimate of an animal’s genetic merit for that trait. As more information
becomes available, an EBV is just as likely to increase in value, as it is to
decrease.
Accuracy values range from 0-99%.
As a rule, animals should be compared on EBVs regardless of accuracy.
However, where two animals have similar EBVs the one with higher accuracy
could be the safer choice, assuming other factors are equal.
For further information please contact NZ Angus or TACE.

2021 Breed Average EBV’s
for 2019 born calves

Calving Calving Gesta- Birth Scrotal
Ease Ease tion Weight Milk Size
DIR DTRS Length
+1.8 +2.1 -4.4 +4.2 +16 +1.9

200 400 600 Mat Days to Carcase
Day Day Day Cow
Weight Weight Weight Weight Calving Weight
+46 +84 +110 +95 -4.2 +61

Eye
Retail
Muscle Rib Fat Rump Fat Beef Yield IMF%
Area
+5.4 +0.1 -0.2 +0.4 +1.8

Self Replacing AngusPure Heifer / Dairy
Index Index Terminal Index

+$100 +$104 +$102

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