Page 7 - Storth Oaks Angus Catalogue ebook

A BRIEF DESCRIPTION OF EBVs

Birth

Calving Ease Direct % Genetic differences in the ability of a sire’s calves to be Higher EBV’s indicate fewer calving
born unassisted from 2 year old heifers difficulties in 2 year old heifers.
Calving Ease Daughters% Genetic differences in the ability of a sire’s daughters Higher EBV's indicate fewer calving
to calve unassisted at 2 years of age. difficulties in 2 year old heifers.
Gestation Length days Genetic differences between animals in the length of Lower EBV’s indicate shorter
time from the date of conception to the birth of the gestation length.
calf.
Birth Weight kg Genetic differences between animals in calf weight at Lower EBV's indicate lighter birth
birth weight.

Growth
200 Day Growth kg Genetic differences between animals in live weight at Higher EBV's indicate heavier live
200 days of age due to genetics for growth weight.
400 Day Growth kg Genetic differences between animals in live weight at Higher EBV's indicate heavier live
400 days of age. weight.
600 Day Growth kg Genetic differences between animals in live weight at Higher EBV's indicate heavier live
600 days of age. weight.
Mature Cow Weight kg Genetic differences between animals in live weight of Higher EBV's indicate heavier live
cows at 5 years of age. weight.
Milk kg Genetic differences between animals in live weight at Higher EBV's indicate heavier live
200 days of age due to the maternal contribution of its weight.
dam.

Fertility
Days to Calving days Genetic differences between animals in the time from Lower EBV's indicate shorter time
the start of joining period (i.e. when the female is to calving.
introduced to a bull) until subsequent calving.
Scrotal Size cm Genetic differences between animals in scrotal Higher EBV's indicate larger scrotal

circumference at 400 days of age. circumference.
Carcase

Carcase Weight kg Genetic differences between animals in hot standard Higher EBV’s indicate heavier
carcase weight at 750 days of age. carcase weight.
Eye Muscle Are cm2 Genetic differences between animals in eye muscle area at Higher EBV's indicate larger eye
the 12/13th rib site in a 400kg carcase. muscle area.
Rib Fat mm Genetic differences between animals in fat depth at the Higher EBV's indicate more fat.
12/13th rib site in a 400kg carcase
Rump Fat mm Genetic differences between animals in fat depth at the P8 Higher EBV's indicate more fat.
rump site in a 400kg carcase
Retail Beef Yield % Genetic differences between animals in boned out saleable Higher EBV's indicate higher yield
meat from a 400kg carcase
Intramuscular Fat % Genetic differences between animals in intramuscular fat Higher EBV's indicate more
(marbling) at the 12/13th rib site in a 400kg carcase intramuscular fat.

Selection Indexes
Self Replacing Index $ Genetic differences between animals in net profitablity per Higher selection index values
cow joined in a typical commercial self replacing herd indicate greater profitability.
using Angus bulls.
AngusPure Index Genetic differences between animals in net profitability per Higher selection index values
cow joined in a commercial self replacing herd targeting indicate greater profitability.
premium grassfed prime beef programs