StockMins-EweLamLac HE Trial

StockMins-EweLamLac HE Trial

An independent lambing supplement trial was conducted where the performance of single bearing ewes and their lambs, offered a traditional supplement of Causmag®, Lime and Salt (CLS) from late-pregnancy to early-lactation, was compared to single bearing ewes and their lambs offered StockMins-EweLamLac HE (ELL-HE) over the same period.

Key Points:

  • Supplementing with StockMins-EweLamLac HE boosted production by 30%
  • StockMins-EweLamLac HE saw a 3.3% increase in the number of lambs weaned
  • Lambs were an average of 25% or 6.1 kg heavier at weaning
  • Ewes were an average of 4.8 kg heavier at weaning
  • Based on this trial, supplementing with StockMins-EweLamLac HE resulted a increase in returns of $21 per ewe*


Independent trial conducted by Anthony Shepherd, Sheepmatters, Cootamundra, 2016

  • Class of livestock: Pregnant single bearing Merino ewes
  • Number of livestock: Control flock (CLS) 228 ewes. Trial flock (ELL) 197 ewes
  • Feed on offer: Lucerne and ryegrass mix, ELL = 702kg DM/ha, CLS = 750kg DM/ha
  • Supplementation period: 98 days (4 weeks pre-lambing, 6 week lambing period, 4 weeks postlambing)
  • Feeding method: Free-access in clean tubs (20L drums cut in half). 1 tub per 50 ewes
  • Data collection: Average live weights of all lambs and ewes were compared at scanning (ewes only), lamb marking and weaning. Lamb mortality data was recorded on a daily basis. 


3.3% More Lambs Weaned

The flock offered CLS recorded a total of 18 lamb mortalities(7.89%), with a weaning percentage of 92.1%. In the flock offered ELL-HE, a total of 9 lamb mortalities (4.57%) were recorded resulting in a weaning percentage of 95.4%.

3.3% more lambs weaned

Average 6.1kg Heavier Lambs at Weaning

Lambs were weaned 35 days after marking. At weaning, lambs from the flock offered CLS averaged 24.1kg/hd. The lambs from the flock offered ELL-HE averaged 30.2kg/ha at weaning, a recorded increase of 6.1kg/hd or 25.3%.

Lambs were 25% heavier at weaning

Average 4.8kg Heavier Ewes at Weaning

During the lambing period, ewes supplemented with ELL-HE had an average of 702kg DM/ha available for grazing, while CLS ewes had 750kg DM/ha. Despite lower feed accessibility, ewes supplemented with CLS lost an average of 11.2kg (20%) body weight from scanning to weaning, while ewes supplemented with ELL-HE lost an average of 7.1kg (12.5%) body weight over the same period.

What do these results mean?

Total lamb production per 100 ewes was 661kg lwt more with StockMins-EweLamLac

Giving single bearing ewes access to StockMins-EweLamLac HE significantly improves lambing performance against all key performance indicators (KPI’s):

  • Improved weaning percentage
  • Higher weaning weights
  • Greater weight retention in ewes

When combining a 3.3% higher weaning percentage and 25% higher average weight of lambs at weaning, supplementing with StockMins-EweLamLac HE improved production by 30% per ewe or 661kg per 100 ewes. This accounted for $21.50 higher returns per ewe when supplemented with StockMins-EweLamLac HE compared to Causmag, Lime & Salt.

Looking to boost lambing results this season?

Call the team at AusFarm Nutrition: 0412 048 055 or Contact

Read our feature on Lambing: Boost survival during lambing

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