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Rate of Genetic Gain in Reducing Breech Wrinkle

Flystrike remains one of the major diseases adversely affecting the Australian sheep industry. Flystrike in the breech (crutch and tail) region of the sheep accounts for the majority of incidence in most years. Breeding more resistant sheep will play a critical role in controlling breech and tail strike.

This project modelled the rate of genetic gain in breeding for breech flystrike resistance, using the data from the AWI Breeding for Breech Flystrike Resistance Program. It extends earlier findings, by predicting genetic gains in breech flystrike incidence from selection using all available indicator traits of breech wrinkle, dag and breech cover scores for three different breech objectives within three different environments.

Project date

15 Feb 2018-30 Jun 2019

Principal investigator

Dr Forbes Brien

Research organisation

The University of Adelaide (UA)

Project led by

Australian Wool Innovation (AWI)

Australian Wool Innovation is a not-for-profit enterprise that conducts research, development and marketing along the worldwide supply chain for Australian …

  • Location


Logo for Australian Wool Innovation (AWI)

Focus areas



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