Original Coverage & Source Attribution: www.foodagribusiness.world
Strategies to support maternal gut health
Nutrition is one of the most effective tools available for influencing the gut microbiome. Prebiotics, including yeast-based mannan-rich fraction (MRF) technologies, have attracted considerable attention because of their ability to help maintain balanced and diverse gut microbiota. By promoting a more favourable microbial environment, MRF can enhance microbial diversity, support gut health and contribute to a more stable intestinal ecosystem. These changes may be particularly valuable during gestation and lactation, when nutrient demands are high and maintaining gut health is essential for both sow productivity and piglet development.
Evidence from a Danish commercial farm
Recent research at a Danish commercial pig farm investigated whether maternal supplementation with MRF throughout gestation and lactation could influence the sow’s microbiome and subsequent piglet performance under commercial conditions. A total of 40 multiparous sows were randomly assigned to either a control diet or a diet supplemented with MRF from service through to weaning. Fresh faecal samples collected at farrowing were analysed using shotgun metagenomic sequencing to characterise changes in the gut microbiome, while sow reproductive performance and piglet growth were also monitored. This approach enabled researchers to evaluate both microbial diversity and bacterial community composition alongside production performance.
Healthier microbial balance
The study demonstrated that MRF supplementation significantly influenced maternal gut microbiota. Sows receiving MRF exhibited greater microbial richness than the control animals, indicating a more diverse microbial community. Diversity is widely recognised as an important characteristic of gut health and performance, because diverse microbial populations are generally better able to adapt to environmental and nutritional challenges while maintaining normal gut function.
Compared with the control group, MRF-supplemented sows showed several notable changes in gut microbiota composition (Figure 1):
- Greater microbial richness, indicating a more diverse microbial community.
- A distinctly different overall bacterial community composition, suggesting that maternal nutrition can meaningfully shape the gut microbiome.
- A lower relative abundance of Escherichia coli at farrowing (p<0.05).
Figure 1 – Relative abundance of Escherichia coli detected in fecal samples of control and MRF-supplemented sows at farrowing. Wilcox tests were performed between groups to test for significant differences (p<0.05).
One of the most notable findings was that the relative abundance of E. coli was lower (p<0.05) in MRF-supplemented sows than in the sows in the control group at farrowing. Members of the Enterobacteriaceae family, including Escherichia, can be considered pathobionts, organisms that normally exist within the gut but can become problematic when the microbial balance is disrupted.
As livestock production continues to prioritise responsible antibiotic use, nutritional strategies that support a stable gut microbiome are becoming increasingly important. By promoting a more balanced microbial community and lowering the abundance of opportunistic organisms, such as E. coli, MRF supplementation may help create a more stable intestinal environment amidst the stresses of late gestation and farrowing. By focusing on supporting normal gut function and microbial balance rather than treating disease, this approach aligns with current perspectives on microbiome management.
Piglet performance
A key finding of the study was the association between changes in sow gut microbiome and piglet performance. Sows supplemented with MRF produced, on average, 0.85 more live-born piglets per litter, and experienced 0.93 fewer stillbirths. Importantly, this advantage extended beyond birth. Piglets born to MRF-supplemented sows had significantly greater average body weights at nine days of age compared with piglets from control sows (2.254 versus 2.125 kg; p< 0.05) (Figure 2).
These findings suggest that supporting the maternal gut microbiome during gestation and lactation may help create conditions associated with changes in early-life growth and development in piglets.
Figure 2 – Average piglet weight at Day 9 of age in experimental groups. Comparison of mean piglet body weight at Day 9 between treatment groups, assessed using the Wilcoxon test (p<0.05).
Looking ahead
Modern pig production continues to evolve toward more holistic approaches to health management, recognising that productivity is closely linked to maintaining a resilient gastrointestinal ecosystem. Rather than focusing solely on addressing challenges after they arise, producers are increasingly adopting nutritional strategies that support normal biological function throughout the production cycle.
The findings from this Danish commercial study demonstrate that maternal supplementation with MRF can positively influence gut microbial diversity and bacterial community composition while being associated with differences in reproductive performance and early piglet growth. These findings reinforce the growing body of research behind MRF technology, which has consistently demonstrated benefits for gut health, microbial balance and animal performance. The present study adds further evidence, highlighting the importance of the maternal microbiome as a key contributor to sow productivity and offspring development.
As our understanding of maternal gut health continues to expand, supporting the maternal microbiome during gestation and lactation is emerging as a practical nutritional strategy to optimise both maternal and offspring outcomes. By fostering balanced and resilient gut microbiota in sows, producers have an opportunity to influence early-life piglet development while improving the efficiency and sustainability of the sows.
While further research will continue to refine our understanding of these complex microbial interactions, the evidence to date suggests that supporting maternal gut health represents a promising nutritional strategy to optimise sow performance, support early piglet development and contribute to more sustainable pig production.
Product availability will vary per region. Product descriptions and any associated claims are not applicable to all markets.
