Pregnancy scanning for multiples every year is strongly encouraged and should be seen as an investment rather than a cost.
Figure: Ultrasound scan of a ewe carrying twin lambs.
Scanning and separating ewes based on condition score and the number of lambs they carry enables better allocation of paddocks and pasture to sheep. It is more efficient to run 3-5 year old ewes together and draft on ewe condition and pregnancy status than age groups.
Ewes that are empty at scanning need to be marked and drafted off. These ewes are not productive and should be culled.
Reducing the loss of ewe condition through the early lactation period is essential to ensure plenty of milk is available for lambs. As peak milk consumption occurs about 3 weeks into lambing, ewes should be fed as much as they can eat at this time.
Additionally, increased parasitic challenge during late pregnancy and early lactation means that FEC should be monitored prior to management milestones such as set stocking and lamb marking, and worming strategies should be practiced to minimise pasture contamination.
Note that lambs born to ewes that are in poor condition and hence lactate poorly, will eat pasture earlier and be subject to the negative effects of parasite challenge earlier.