ACTA VETERINARIA ET ZOOTECHNICA SINICA ›› 2018, Vol. 49 ›› Issue (1): 203-210.doi: 10.11843/j.issn.0366-6964.2018.01.023

Previous Articles     Next Articles

Effects of Hericium Erinaceus Polysaccharide on Ileal Morphology and Permeability of Piglets under Oxidative Stress

ZHANG Jian-long1, QIU Fu-an2, DONG Xing1, QIN Tao1, MA Yu-fang2, HUANG Yi-fan1*, LI Jian1*   

  1. 1. Fujian Key Laboratory of Traditional Chinese Veterinary Medicine and Animal Health, Fujian Agriculture and Forestry University, Fuzhou 350002, China;
    2. University Key Laboratory for Integrated Chinese Traditional and Western Veterinary Medicine and Animal Healthcare in Fujian Province, Fuzhou 350002, China
  • Received:2017-07-19 Online:2018-01-23 Published:2018-01-23

Abstract:

This study aims to investigate the effects of feeding Hericium erinaceus polysaccharide (HEP) to weaned piglets on ileal morphology and permeability under oxidative stress. Forty-five healthy long-white weaned piglets with similar weight were randomly divided into five groups (every group had 9 replications). Control group and model group were fed with basic diet only, meanwhile the other three test groups were fed with basic diet added with 0.2%, 0.4% or 0.6% HEP. On the 21st day, piglets in model group and three test groups were injected with 100 μg·kg-1·BW lipopolysaccharide, meanwhile, piglets in control group were injected with equal dose sterilized normal saline. Blood samples were collected to detect antioxidant functions and intestinal mucosal integrity. The piglets were slaughtered and the ileums were collected to observe the morphological changes by HE staining; the expression of tight junction proteins of ileum were detected by qPCR methods and Western blot methods. The results showed that, compared with the model group, HEP could significantly improve the decrease of serum antioxidant indexes caused by LPS (P<0.05), significantly increase glutamine (GLN) content (P<0.05) and reduce diamine oxidase (DAO) activity (P<0.05); and significantly recovery the decrease of tight junction protein expression in ileum epithelial cells induced by LPS stress (P<0.05). Supplementation of HEP can effectively improve the permeability of ileal morphology under oxidative stress.

CLC Number: