Page 9 - Orari Gorge 2021 Catalogue ebook

SELECTION INDEXES FOR NEW ZEALAND EBV GRAPH FOR THE AVERAGE OF

Selection Indexes rank animals for a single production goal – PROFIT. They THE ORARI GORGE SALE BULLS
take the hard work out of determining how much emphasis to give each of
the available growth, maternal, carcase and fertility EBVs, when selecting
parent animals. An Index is a composite EBV ( EBV for Profit) for traits best
suited to a particular production system and/or target market. There are TRAIT
three breed-specific Indexes for Hereford cattle: CED - Harder +2.4 Easier
1. Hereford Prime Index – Estimates the genetic differences between CEM - Harder +2.1 Easier
animals in net profitability per mixed age cow joined for a typical self- GL - Longer -0.4 Shorter
replacing commercial herd where Hereford bulls are joined to either
Hereford or other British breed females and targeting the production of BW - Heavier +3.9 Lighter
grass finished steers for the Hereford Prime program. Selected heifers 200 - Lighter +35.8 Heavier
are retained for breeding and so maternal traits are of importance. 400 - Lighter +63.4 Heavier
Steers target 550 kg live weight (300 kg carcase weight & 7 mm P8 fat)
at 20 months of age, and heifers 475 kg (260 kg carcase weight & 8 mm 600 - Lighter +88 Heavier
fat depth), at 22 months of age. MAT - Lighter +67.7 Heavier
2. Beef Heifer Index – Estimates the genetic differences between animals MILK - Lower +19.4 Higher
in net profitability per yearling heifer joined for a typical self-replacing
commercial herd where Hereford bulls are joined to either Hereford or SS - Smaller +2.5 Bigger
other British breed heifers. Selected heifers are retained for breeding DTC - Larger -4.7 Shorter
and so maternal traits are of importance. Steers target 510 kg live CWT - Lighter +60.4 Heavier
weight (280 kg HSCW and 7 mm P8 fat depth) and heifers 450 kg ( 250
kg HSCW and 8 mm P8 fat depth) at 20 months of age. EMA - Smaller +3.8 Bigger
3. Dairy Beef Index – Estimates the genetic differences between animals RIB - Leaner +1.4 Fatter
in net profitability per mixed age dairy cow joined with all progeny +1.7
destined for slaughter. Steers and heifer progeny target 550 kg live RUMP - Leaner Fatter
weight (300 kg carcase weight and 6 mm fat depth) at 24 months of age IMF - Lower +0.9 Higher
and at 475 kg live weight (260 kg carcase weight and 7 mm fat depth) HP - Lower +137.7 Higher
at 22 months, respectively.
BH - Lower +131.8 Higher
ACCOMMODATION DB - Lower +111.3 Higher
100 90 80 70 60 50 40 30 20 10 0
Andorra Motels, Geraldine offer 10% Discount if stated you are attending
the Orari Gorge Sale at Orari Gorge Station.
50th Percentile is the Breed Avg. EBVs for 2019 Born Bulls
Tel: (03) 693-8622, Fax: (03) 693-9731, Freephone: 0800-263-677,
Email: andorra.motel@xtra.co.nz
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