Metagenomic sequencing for the gut contents of newborn piglets delivered by sows supplemented with ATRA at different levels from day 12 to day 95 after artificial insemination.
After breeding, sows were fed ATRA with different gradient concentrations within 12 to 95 days of gestation. To observe the effects of ATRA on piglets after delivery. Metagenomic sequencing of intestinal contents samples was performed