中文摘要：

日粮纤维具有多种理化特性，日粮中添加适量的纤维可改善妊娠母猪的繁殖性能，降低刻板行为的发生率，防止便秘，降低无乳症的发生率，在养猪生产中具有重要的意义。本文主要介绍了日粮纤维的定义、理化特性及其对母猪的繁殖性能、行为和健康水平的有益作用、不利影响及可能的作用机制。

英文摘要：

Dietary fiber possesses manifold physical-chemical characteristics. In diets of pregnant sows, supplementation with proper dietary fiber could improve the reproductive performance,reduce the incidence of stereotypic behavior, prevent constipation and reduce the incidence of periparturient hypogalactic syndrome of sows. Definition, physical-chemical characteristics of dietary fiber, beneficial influences and adverse effects of dietary fiber on reproductive performance, behavior and health level of sows, and possible mechanisms of action were mainly stated in this article. [Chinese Journal of Animal Nutrition, 2006,18（Suppl） ：334-340 ]