By this stage, forage alone often falls short of providing sufficient energy and protein, especially for ewes carrying multiple lambs. Strategic supplementation can help bridge the gap, ensuring healthy lamb development whilst maintaining the ewe’s condition.
Start by evaluating the quality of your conserved or grazed forage. Analyse your silage or hay for energy (metabolizable energy, ME) and protein levels, using results to plan supplementation accurately. Target an overall daily intake of 12-16MJ ME per kilogram of dry matter, with crude protein levels of at least 16%. High-energy concentrates are typically necessary, especially for ewes carrying twins or triplets.
Introduce concentrates gradually, starting with 200-300g per ewe per day and increasing by 100g weekly until twin bearing ewes are receiving 600-800g daily by lambing. For triplet-bearing ewes, higher intakes may be required. Higher levels may also be required if forage quality is low too.
Once more than 500g per ewe per day is reached, this needs to be split into two feeds to prevent acidosis and maximise utilisation. Using a high-quality concentrate containing digestible fibre and bypass protein, which are critical for lamb growth and ewe health is best for both sheep and farmer.
Ensure all ewes have sufficient feeding space (medium ewes need a minimum of 45cm of trough space per ewe) to reduce competition, particularly for those in lower body condition or carrying multiples. Always provide ad- lib access to clean water, as hydration is vital for nutrient absorption and milk production. Supplement diets with appropriate minerals and vitamins, focusing on magnesium, calcium, selenium, and vitamin E to support metabolic health and reduce the risk of issues like hypocalcaemia or weak lamb syndrome.
Regularly assess body condition scores (BCS) and adjust rations as necessary. Seek professional guidance if scanning shows a high proportion of multiple- bearing ewes, as their requirements will demand a tailored approach.
Consistent attention (and alteration if required) to supplemental feeding pays off in strong, healthy lambs and productive ewes.