Journal of Food, Agriculture and Environment

Effect of dietary wheat with arabinoxylanase supplementation on intestinal morphology of weaned pigs

Author(s):

Min Gong ^{1, 2#*}, Jinjin Liu ^2#, Zhichun Zhan ^3#*, Ying Zhou ^3#*, Ruan Zheng ^1*

Recieved Date: 2011-09-14, Accepted Date: 2012-01-08

Abstract:

The objective of the study was to investigate the mechanism how dietary wheat with arabinoxylanase supplementation affected the growing performances of weaned pigs. In this experiment, 32-28 day old male pigs with approximately 7.74±1.03 kg initial body weight were divided into four dietary treatment groups randomly. Four groups; control group (basic diet), low-dose group (basic diet+0.5 g enzyme/kg wheat), middle-dose group (basic diet+1.0 g enzyme/kg wheat) and high-dose group (basic diet+1.5 g enzyme/kg wheat) were fed for 12, 24 and 30 days. Eventually intestinal villus length, crypt depth, intestinal epithelial columnar cell lymphocyte count and the number of goblet cells were tested. The results from the experiment showed that the jejunum villus length value of the middle jejunum in the control group was maximal, it was significantly different with that of the low-dose and middle-dose groups (P<0.05). The villus length value and the crypt depth value of terminal ileum in low dose group were higher than that of the middle and high-dose groups, which were significantly different (P<0.05). The number of lymphocytes on the intestinal epithelium of the terminal ileum in the control group was higher than that of the middle and high-dose groups, which was also significantly different (P<0.05). The number of goblet cells and lymphocytes on the intestinal epithelium in the control group and the low-dose group for the terminal ileum was higher obviously than in the middle jejunum; there were significant differences between groups (P<0.05). With the age increasing, the ratio of villus length and the crypt depth was amplifying in both middle jejunum and the terminal ileum. In conclusion, dietary wheat with arabinoxylanase could reduce the stimulation of nonstarch polysaccharides (NSP) on intestinal tract of weaned pigs. Intraepithelial lymphocytes and goblet cells were mainly distributed in the ileum, the intestinal absorption function increased ceaselessly over time. 

Keywords:

 Wheat, arabinoxylanas, weaned pigs, intestinal morphological apparent index

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Journal: Journal of Food, Agriculture and Environment
Year: 2012
Volume: 10
Issue: 1
Category: Agriculture
Pages: 365-371

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