Setting Breeding Objectives

A breeding objective describes animals you would like to breed that are appropriate for your production system and market.

By setting a breeding objective—as part of your overall business planning and management—you can identify your genetic priorities and plan the genetic selection methods that will allow you to reach this goal.

Your breeding objective should target characteristics (traits) that:

  • can continue to be improved within the limitations of your environment and production system;
  • deliver wool, meat or sheep products to suit a particular market;
  • contributes the most to your profit;
  • are heritable and have sufficient genetic variation to enable progress to be made.

Also note that the more traits that you include, the progress for each will be slower, however the progress against the objective can still be high.

Breeding objectives generally include the characteristics of importance, the level they should achieve and the time frame in which this will be achieved. for example:

Within 5 years, 80% of ewes at first shearing (11 months) will have:

  • Fibre Diameter: between 17.5 and 19.5 microns
  • Greasy Fleece weight: more than 4.5 kg
  • Body weight: more than 40 kg
  • Breech Wrinkle: 1 or 2 score
  • Wool Colour: 1 or 2 score

A common fault when setting breeding objectives is to have no timelines or levels to achieve. For example: White, bright, fine wool, with heavy fleece weights on large-framed sheep that are resistant to flystrike.

By adding levels you can more easily monitor your progress towards the objective and know where changes need to occur in your selection to help achieve your goal.

For Merino breeders focused on wool, fibre diameter, fleece weight and body weight have the most influence on profit.

For prime lamb producers, focus on weaning and postweaning weight, fat score and reproduction rate (number of lambs weaned per ewe joined).

 

Choose from the tabs below to find more detailed information.


Practical Wisdom Notes / Fact Sheets

PW4.1 New Opportunities in Genetics and Genomics

In this series:

  1. Genomics and DNA testing: new tools for ram breeders to accelerate genetic gain
  2. Breeding towards a poll flock with the Sheep CRC Poll test

  3. Sheep CRC genomic test for Merinos —what are the benefits?

  4. Sheep CRC genomic test for maternal breeds —what are the benefits?

  5. Sheep CRC genomic test for terminal breeds —what are the benefits?

  6. Using Australian Sheep Breeding Values

  7. Fat and eye muscle depth in Merino breeding programs

  8. Benefits of Reproductive Technologies in  Closed Nucleus Sheep Breeding

  9. Merinotech: Strategies to achieve a 100% PP nucleus

  10.  Using selection decisions to improve ASBVs

  11. Genomic testing ram lambs helps increase rates of index genetic gain by 50% at Centre Plus

  12. Genomic testing and artificial insemination helps increase LEQ index gains138% faster than industry average – Melton Vale Poll Dorsets


Products & Training Resources

ASBV Pocket Guide

ASBVs - A guide for ram buyers

Marketing your sheep with genetic data

Sheep DNA Testing Information

Reports, Articles and Presentations

Getting Started with Sheep Genetics

Sheep CRC Genomics Breakfast Workshop - LambEx 2012

News Releases

RamSelect drives demand at Ella Matta ram sale
The genetic selection app RamSelect was a key plank of the promotional platform for the Ella Matta White Suffolk and Merino stud which recorded its best-ever sale results late last year. The Kangaroo Island stud recorded its highest grossing sale, its highest ever top-priced ram at $16,000, and an improved overall average of $1459 / ram, despite increasing its sale offering by more than 10% to 200 White Suffolks, 40 Poll... Click Here To Read Full Article » https://www.sheepcrc.org.au/information/news/ramselect-drives-demand-at-ella-matta-ram-sale-08-02-2018.php
MERINOSELECT now mainstream practice and growing fast
Use of the objective genetic assessment tool, Australian Sheep Breeding Values (ASBVs), has grown so rapidly in the Merino industry in the last five years that close to 50% of all Merino rams are now sold by studs that are members of MERINOSELECT. Recent analysis by the Cooperative Research Centre for Sheep Industry Innovation (Sheep CRC) reveals that studs in MERINOSELECT now provide around half of the Merino rams used by... Click Here To Read Full Article » https://www.sheepcrc.org.au/information/news/merinoselect-now-mainstream-practice-and-growing-fast-02-02-2018.php
DNA Flock Profile test takes gut feel out of farming
DNA testing has taken the guesswork out of breeding for Victorian sheep mixed farmer Todd Martin, who now has a clear picture of how his flock compares to the rest of the industry and the decisions he needs to make to improve its performance. Click Here To Read Full Article » https://www.sheepcrc.org.au/information/news/dna-flock-profile-test-takes-gut-feel-out-of-farming-15-01-2018.php
DNA Flock Profile cements the foundations for new flock
Developing a flock with the right mix of genetics can take generations to perfect, but DNA testing has put Geelong sheep and wool producer Jack Briscoe on the fast track to success. Mr Briscoe is only a year into breeding his own Merino flock after branching out from his sheep contracting business by cobbling together a mixture of 800 home-bred and yard-bought ewes as his breeding base. Click Here To Read Full Article » https://www.sheepcrc.org.au/information/news/dna-flock-profile-cements-the-foundations-for-new-flock-28-11-2017.php
RamSelect keeps track of flock performance at Parkes
The RamSelect app is not only assisting with better genetic decisions for the Dunn family of Parkes, NSW, but also assisting with their inventory management and industry benchmarking activities. The Dunn family, trading as Reedy Creek Partners, operates a mixed farming enterprise between Manildra and Parkes, and has been using the app since it was first launched in 2015 to assist with their ram selections. Click Here To Read Full Article » https://www.sheepcrc.org.au/information/news/ramselect-keeps-track-of-flock-performance-at-parkes-30-10-2017.php
Faster sheep DNA testing with new Australian GeneSeek lab
Sheep breeders using DNA testing to improve their genetic selections can look forward to faster turnaround times for test results thanks to Neogen Corporation’s decision to establish a genomic testing laboratory within Australia. GeneSeek Australasia, a wholly owned subsidiary of United States-based parent company Neogen, has acquired the assets of the Animal Genetics Laboratory (AGL), based at the Gatton campus of the... Click Here To Read Full Article » https://www.sheepcrc.org.au/information/news/faster-sheep-dna-testing-with-new-australian-geneseek-lab-04-09-2017.php
Dramatic increase in early season searches on RamSelect
Inquiry for rams through RamSelect has never been stronger with a dramatic increase in the number of buyers searching the site so far this season compared to last year. More than 1129 ram searches were conducted on RamSelect during July, compared to just 154 at the same time last year. Click Here To Read Full Article » https://www.sheepcrc.org.au/information/news/dramatic-increase-in-early-season-searches-on-ramselect-22-08-2017.php
DNA testing to drive new era of ewe competitions
The traditional ewe competition is set to enter the innovation era with the inclusion of DNA Flock Profile tests as part of next year’s Doug Bicket Memorial Ewe trial in Parkes, NSW. The Cooperative Research Centre for Sheep Industry Innovation (Sheep CRC) will provide DNA profiling for all flocks entering the 2018 competition, currently valued at $800 plus GST per flock, as a means of supporting improved genetic selection... Click Here To Read Full Article » https://www.sheepcrc.org.au/information/news/dna-testing-to-drive-new-era-of-ewe-competitions-18-07-2017.php
The predictive power of ASKBILL immortalised in song
An off-the-cuff comment and a spur of the moment decision to “have a go” have resulted in the sheep industry’s new predictive app, ASKBILL, being brought to life in song by Uralla musician Rhonda Brooks. Performed in a bush ballad style by Coffs Harbour musician Mal Winckle, the track is proving a popular addition to the ASKBILL website, helping to capture producers’ imagination as to the possibilities on offer... Click Here To Read Full Article » https://www.sheepcrc.org.au/information/news/the-predictive-power-of-askbill-immortalised-in-song-10-07-2017.php
RamSelect moves towards commercial business model
The popular RamSelect app will move to a commercial funding model ahead of this season’s ram sales, as a first step towards ensuring the genetic selection tool’s financial viability and availability to producers in the long-term. RamSelect Plus is an easy to use web-based application, www.ramselect.com.au, which allows ram buyers to find and rank rams based on Australian Sheep Breeding Values (ASBVs) that match their own... Click Here To Read Full Article » https://www.sheepcrc.org.au/information/news/ramselect-moves-towards-commercial-business-model-03-07-2017.php
Click Here To Read More News Articles »

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