日粮纤维在猪日粮中的应用研究进展

Research progress on the application of dietary fi ber in swine diet

日粮纤维,一方面会降低养殖成本及养分利用率和猪只生长性能;另一方面,可以通过肠道微生物发酵与抑制病原菌定植提高猪只肠道健康水平。高日粮纤维猪只日粮的负面影响受纤维来源、类型和添加水平影响,而合理使用日粮纤维能改善仔猪肠道健康并提高母猪繁殖性能;添加纤维降解酶可以缓解日粮纤维的抗营养作用,以保证其对仔猪肠道健康的改善作用。文章就日粮纤维类型、使用方法及对猪只营养、肠道健康的影响进行了综述,以期为日粮纤维的有效利用提高养殖生产效益提供参考和依据。

Dietary fi ber,on the one hand,can reduce breeding costs,nutrient utilization ratio and pig growth performance;on the other hand,it can promote intestinal microbial fermentation and inhibit the colonization of pathogenic bacteria.The negative effects of high-fi ber diets are affected by the source,type and added level of fi ber.The rational application of dietary fiber can improve piglet intestinal health and reproductive performance of sows;adding fiber degrading enzymes can alleviate the anti-nutrition of dietary fi ber to ensure its improvement effect on intestinal health of piglets.This review summarized the dietary fiber types,usage methods and their effects on pig nutrition and intestinal health,providing references and basis for the effective utilization of dietary fi ber to improve the effi ciency of breeding production.