Scanning is used to identify multiple pregnancies to better manage twin bearing ewes and to identify and remove empty ewes. Careful consideration needs to be made of the costs and benefits of pregnancy scanning to achieve a management and economic gain. Benefits will differ with season, reproductive rate of the flock and how scanned ewes are managed. Industry estimates are that over 100 contractors are now scanning almost 40% of the national ewe flock. Scanning is best done between 80 to 100 days after removal of the rams from concise joining period. See tool 10.7 in the Making More From Sheep manual for a discussion of some of the benefits and disadvantages of scanning, or visit the Sheep CRC website Pregnancy Scanning pages for more detailed resources, including contractor contact details.