Ewes are scanned in a standing position in a walk through
trailer. Trailer can be set up inside or outside as power
is supplied by 12 volt battery for scanner. Many of the
hill ewes we scan are scanned on the hill.
Information Provided
Number of Lambs
Ewes are scanned approx 70 to 90 days from the start of
mating. Barren, single, twin and triplet bearing ewes
can be identified. Occasionally quads and quins are seen
and on two occasions in 15 years sextuplets have been
identified.
Barren ewes can be confirmed if the ram has been away from
ewes for 4 weeks. If rams still with flock barren ewes
would need to be rescanned.
Stage of Pregnancy
The scanning machines used enable the stage of the pregnancy
to be confirmed. PAS operators can if required identify
later lambing ewes e.g. ewes lambing after approx 1 month.
This allows more input from the farmer to nutritional
and health management of the flock.
 Ewe Preparation
The main requirement for scanning ewes is that they are
not too full. Ideally ewes should be off all feeding
12 hours prior to scanning. They should if possible not
have their diet changed just prior to scanning as this
can upset the rumen and increase gas production which
can occasionally interfere with scanning.
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