Perinatal short-chain fructo-oligosaccharide supplementation to sow affects colostrum quality, and consequently microbiota composition and performances of progeny

Lay Summary The nutrition of sows during late pregnancy and lactation can influence the gut microbiota colonization of their piglets, which is important for their future growth performance. This study examined whether supplementing short-chain fructo-oligosaccharides (scFOS), a prebiotic fiber, in the diet of sows during the last weeks of gestation and the lactation period could improve the quality of the milk and support the growth of their piglet. Sows were fed a standard diet or a diet supplemented with low or moderate doses of scFOS. Composition of colostrum and milk, gut microbiota in sows and piglets, and piglet growth up to 67 days of age, were analysed. Results showed that scFOS improved colostrum quality by increasing protein and some immune components. Changes in the gut microbiota were limited in sows, while beneficial bacteria populations increased in the piglets of the supplemented sows. These piglets also tended to use feed more efficiently after weaning. In conclusion, adding scFOS to the diet of sows during the perinatal period enhances colostrum quality and improves feed efficiency of the piglets, by promoting their gut health.