Tasmanian farmers have been invited to take part in the National Lambing Density Project.
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The project is a partnership between Australian Wool Innovation, Meat & Livestock Australia and industry organisations to assess the effects of mob size and stocking rate on lamb survival.
Data will be collected from producers who pregnancy scan for multiples, and run singles and twins in separate mobs until marking.
A national network of farmers will submit on-farm observations on practices and results of lambing.
The project information sheet explained that data needed was: paddock size and shelter, number of ewes in mob and their pregnancy status, average ewe condition score at lambing, family of origin at lambing and number of lambs marked.
“A survey of sheep producers in Victoria showed that for each additional 100 twin‐bearing ewes in the mob at lambing, lamb survival decreased by 3.5 per cent. Lamb survival also decreased by 0.7% for each additional ewe per hectare,” the sheet said.
Participants will receive a summary report with their data and regional and national findings.
If you would like to provide data for your farm complete your details at www.surveymonkey.com/r/lambingdensityTas