GHRL and Anorexia: However, some microorganisms that were differentially dominant in the butyrate group, such as g__Coriobacteriaceae_UCG-002, g__Faecalibaculum, and g__CAG-352, may have inhibited the release of intestinal pro-inflammatory factors while promoting intestinal epithelial barrier development and ghrelin release, thereby avoiding weaning-related anorexia in the rabbits.