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MLPAO Evaluability of Anti Mullerian hormone

This project aims to increase ewe weaning rates and lifetime productivity by providing sheep producers with a more accurate method of identifying more fertile and fecund ewe lambs before first mating. The proposed marker is anti-müllerian hormone (AMH), which is produced solely by the ovary and can be measured accurately in peripheral blood. Preliminary evidence from Spanish / Italian sheep breeds showed that ewe lambs with high compared with low blood levels of AMH prior to 4 months of age were 12 weeks younger at first lambing, had higher pregnancy rates to first mating (65 versus 33%), and produced 40% more lambs per year and per lifetime. There is also a strong correlation between AMH levels and the number of embryos produced by Merino ewe lambs within juvenile in vitro embryo transfer (JIVET) programs.

Project date

10 Sep 2018-1 Dec 2025

Principal investigator

Dr William van Wettere

Research organisation

The University of Adelaide (UA)

Project led by

Multiple industries
Other rural industries Sheep Wool

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 …

Multiple industries
Other rural industries Sheep Wool
  • Location

    Australia wide

  • Organisation type

    Research funding body

Logo for Australian Wool Innovation (AWI)

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