›› 2014, Vol. 41 ›› Issue (9): 221-224.

Previous Articles     Next Articles

Study on Relationship between Intestinal Epithelium Tight Junction Proteins mRNA Expression and Piglets Weaning Diarrhea

ZHANG Ying-chao, WANG Xi-biao, CUI Shi-quan, DI Sheng-wei, GUAN Sen   

  1. College of Animal Science and Technology, Northeast Agricultural University, Harbin 150030, China
  • Received:2014-02-26 Online:2014-09-20 Published:2014-09-24

Abstract: The experiment was carried out to compare diarrhea status between Min pig and Landrace pig in a week after weaning, detect two varieties piglets jejunum, ileum and colon tight proteins Zonula occludens-1(ZO-1)and Occludin mRNA expression before and after weaning. The intention was to discuss the relationship between tight proteins expression and piglets weaning diarrhea. The results showed that Min piglets diarrhea rate, diarrhea frequency were very significantly lower than Landrace pig within one week after weaning (P<0.01), diarrhea days was significantly lower than Landrace pig within one week after weaning (P<0.05);Min piglets not weaning group ileum and colon ZO-1 and Occludin mRNA expression was very significantly higher than Landrace pig not weaning group (P<0.01);Min piglets weaning diarrhea group ileum and colon ZO-1 and Occludin mRNA expression was significantly higher than weaning health group (P<0.05). The results indicated that Min piglets intestinal tight junction proteins mRNA high expression before weaning might be had relation with guarantee piglets intestinal health and decrease occurrence diarrhea;Min pig fast recover intestinal mucosa function and rehabilitation by increased tight junction proteins mRNA expression after weaning. So tight junction proteins mRNA high expression before and after weaning had an important significance for piglets to resist weaning diarrhea.

Key words: ZO-1; Occludin; Min pig; Landrace pig; weaning diarrhea

CLC Number: