Page 8 - Martin Farming Angus 2021 Catalogue eBook

HEREFORD INDEXES Selected heifers are retained for breeding and so
maternal traits are of importance. Steers target 550 kg
New Zealand Herefords currently report three different live weight (300 kg carcase weight & 7 mm P8 fat) at 20
selection indexes. These are the Hereford Prime Index, months of age, and heifers 475 kg (260 kg carcase weight
Beef Heifer Index and the Dairy Beef Index. These & 8 mm fat depth), at 22 months of age.
Indices relate to typical commercial herds in New Zealand
targeting these specifications. Beef Heifer Index - Estimates the genetic differences
between animals in net profitability per yearling heifer
Index values are reported as EBVs, in units of relative joined for a typical self-replacing commercial herd where
earning capacity ($) for a given market. They reflect both Hereford bulls are joined to either Hereford or other British
the short-term profit generated by a sire through the sale breed heifers. Selected heifers are retained for breeding
of his progeny, and the longer-term profit generated by his and so maternal traits are of importance. Steers target
daughters in a self-replacing cow herd. A selection index 510 kg live weight (280 kg HSCW and 7 mm P8 fat depth)
combines the EBVs with economic information (costs and heifers 450 kg ( 250 kg HSCW and 8 mm P8 fat
and returns) for specific market and production systems depth) at 20 months of age.
to rank animals based on relative profit values. Note that
different types of animals can give similar profit values, so Dairy Beef Index - Estimates the genetic differences
consideration should be given to both the index and the between animals in net profitability per mixed age dairy
component EBVs when selecting animals for a particular cow joined with all progeny destined for slaughter.
production system. Steers and heifer progeny target 550 kg live weight (300
kg carcase weight and 6 mm fat depth) at 24 months of
The Index values are derived using BreedObject technology. age and at 475 kg live weight (260 kg carcase weight and
Hereford Prime Index - Estimates the genetic 7 mm fat depth) at 22 months, respectively.
differences between animals in net profitability per mixed Note that $Index values for individual animals are
age cow joined for a typical self-replacing commercial sensitive to the assumptions used in the BreedObject
herd where Hereford bulls are joined to either Hereford or analysis to calculate the selection index.
other British breed females and targeting the production
of grass finished steers for the Hereford Prime program.

HEREFORD BREEDPLAN EBVs (AVERAGE FOR 2019 BORN CALVES)

Dir Dtrs GL Birth 200 400 600 Mwt Milk SS DtC
+2.1 +1.8 -0.6 +4.1 +33 +55 +78 +67 +17 +2.0 -2.9
Cwt EMA Rib Rump RBY IMF Index Values
+52 +3.5 +0.7 +0.8 +0.8 +0.5 HP +$110 BH +$112 DB +$105
HEREFORD INDEX VALUE KEY HP - Hereford Prime BH - Beef Heifer DB - Dairy Beef

OSH Every effort will be taken by the Vendors, Stock Agents, their staff and assistants, both on the sale day as well as
any visits of inspection to ensure the safety of intending buyers and visitors. We wish however to advise that while this
sale is run under normal management conditions, certain dangers exist in relation to livestock and their environment.
Visitors should take care to ensure their personal safety.

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