In the recovery of pig production capacity, special attention should be paid to the intestinal health of pigs. Many nutrients are closely related to the intestinal health of pigs, among which dietary fiber is one of the important nutrients affecting intestinal health of pigs. Dietary fiber plays an active role in regulating intestinal microecological environment. The appropriate fiber level in the diet can improve the microbial diversity, regulate the composition of microbial community, maintain the microecological balance of the intestinal tract, improve the feed conversion rate, promote the growth and development of pigs and prevent diseases. In this paper, the composition and nutritional function of dietary fiber, the main action mechanism of dietary fiber on pig intestine and its impact on the microecological environment of pig intestine were reviewed, aiming to provide theoretical reference for further research and application of dietary fiber in pig production practice. |