The effect of week (relative to lambing date) on FEC was highly significant. However, diet did not influence FEC at any stage either pre- or post-partum. The changes in BW and BCS from 6 weeks before lambing to weaning were not affected by the concentration of DUP in the supplement, but ewes on treatments involving the higher level of supplementation lost less BW and BCS.
The results of this study indicate that the level of DUP supplementation during the last 6 weeks of pregnancy does not affect FEC, BW or BCS of housed ewes with a naturally acquired GIN infection.
Read abstract from Veterinary Parasitology (February 2017).