Effects of Different Levels of Licorice Residue and Sweet Sorghum on Pellet Feed Quality, Intestinal Morphology, Cecal Volatile Fatty Acids, and Microorganisms in Meat Rabbits

< 0.05). At the phylum level, Firmicutes were most enriched. At the genus level, Faecousia and SFMI01 abundance increased with higher licorice residue. LEfSe analysis confirmed that varying licorice residue levels influenced cecal microbial composition from phylum to genus. The addition of 25% licorice residue to the diet can improve the growth performance of meat rabbits and improved both intestinal tissue morphology and the cecal microbiota of meat rabbits.