Neonatal and maternal dietary interventions driving microbiota and functionality in piglet gut compartments

Area of Science:

• Animal Science
• Gut Health
• Immunology

Background:

• Early-life gut health is crucial for piglet development and performance.
• Traditional feed additive administration occurs post-weaning, potentially missing critical developmental windows.
• The impact of administration route (maternal vs. neonatal) on gut functionality remains underexplored.

Purpose of the Study:

• To compare the effects of maternal (lactation feed) versus neonatal (oral gavage) administration of feed additives on piglet gut functionality.
• To investigate the influence of medium chain fatty acids (MCFA), beta-glucans (BG), and galacto-oligosaccharides (GOS) on gut health markers.
• To determine the optimal administration route for different feed additives in early-life piglets.

Main Methods:

• Comparison of maternal and neonatal administration routes for MCFA, BG, and GOS in piglets.
• Analysis of gut microbial diversity (alpha and beta diversity) at different time points.
• Differential gene expression (DEG) analysis to assess molecular responses in the gut.
• Pathway enrichment analysis to identify affected biological processes.

Main Results:

• Maternal MCFA administration altered alpha diversity and gene expression related to immune processes and metabolism.
• Neonatal MCFA administration primarily affected genes related to cell adhesion.
• Significant differences in diversity and gene expression were observed when comparing administration routes, with MCFA showing a more pronounced differential response.
• BG and GOS also induced distinct gene expression patterns associated with metabolism and immune signaling depending on the administration route.

Conclusions:

• Both the type of feed additive and the route of administration significantly influence piglet gut functionality.
• MCFA demonstrated a more complex and differential response based on administration route compared to BG and GOS.
• Determining the optimal administration route is critical for maximizing the benefits of nutritional interventions in young pigs.