• Driving piglet performance through improved maternal nutrition is a cost effective way to maximise lifetime performance and health of growing piglets as piglets lost prior to weaning represent an economic loss as well as a welfare target.
  • This work is part of the Anpario’s 4R approach (Review, Reduce and Replace antimicrobials Responsibly) which helps manage gut health and support healthier livestock through the use of natural products.
  • This trial showed that Orego-Stim is able to support sow lactation performance leading to improved piglets weaned per sow and a return on investment (ROI) of 8:1.
  • Orego-Stim is a high quality, eubioitic containing 100% natural oregano oil.
  • Previous findings have shown that dietary supplementation of oregano essential oil (OEO) in sows can decrease oxidative stress and improve piglet growth performance (Ariza-Nieto et al. (2012) and Tan et al. (2015)).
  • In this study Orego-Stim was fed to sows throughout gestation and lactation and their performance, and that of their progeny was compared with a negative control group fed no additives.

Anpario conducted a randomized, blinded non-crossover trial with a commercial herd in Midwest, USA managed by Carthage Innovative Swine Solutions (CISS, IL. USA). The trial was designed to evaluate the efficacy of Orego-Stim supplemented feed in improving sow and piglet performance. A total of 200 sows were balanced for parity between the two treatment groups at service and fed either the basal gestation and lactation ration or Orego-Stim supplemented at 500g/tonne until weaning. At farrowing the total number of piglets born, numbers born alive, and piglet birth weight were recorded for each sow. Sow feed intake, BCS and health status was monitored for all sows throughout the trial. Weaning was carried out at ~19 days of age at which time number of piglets weaned per litter, litter weaning weight was recorded for both groups.


Piglet losses and removals per treatment Fig. 1 Piglet losses and removals per treatment (A-B letters denote statistical significant difference by ANOVA (p<0.1)Fig.2 Piglets weaned per treatment (~represents significantly improved likelihood of weaning (RR= 1.73, p=0.0001))

  • Average number of piglets born alive was conserved across both groups (14.61 vs 14.36 for Control and Orego-Stim respectively).
  • At weaning, average piglet weight was similar but litter weight was numerically heavier for Orego-Stim due to an increased number of piglets weaned.
  • Removals were significantly reduced with Orego-Stim supplementation with an increased number of weaned piglets (by 11%) and a 2% reduction in pre-weaning mortality compared to the control.
  • These differences provide a significant benefit to piglets weaned per sow, providing a margin over feed value of £59 per sow per year.

Eubiotics such as Orego-Stim provide a natural tool for the improvement of sow and progeny health and performance. Improving weaning performance and health which can have significant effects on lifetime performance and medication use.