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Swine Nutrition and Feed Technology
Asian-Australasian Journal of Animal Sciences 2009;22(2): 246-253.
DOI: https://doi.org/10.5713/ajas.2009.80358    Published online January 6, 2009.
Chinese Medicine Granule Affects the Absorption and Transport of Glucose in Porcine Small Intestinal Brush Border Membrane Vesicles under Heat Stress
Xiaozhen Song, Jianqin Xu, Tian Wang*, Fenghua Liu
Correspondence:  Tian Wang,
Abstract
This study was conducted to investigate the effects of Chinese medicine granule (CMG, including Cortex Phellodendron, Atractylodes Rhizome, Agastache Rugosa and Gypsum Fibrosum) on absorption and transport of glucose in porcine small intestinal brush border membrane vesicles (BBMVs) under heat stress. Forty-eight 2-month-old Chinese experimental barrows were screened according to weight and litter origin, and then allotted to three groups and treated as follows: Normal temperature control group (NTCG; 23C), high temperature control group (HTCG; 26C for 19 h, 40C for 5 h); Chinese medicine granule anti-stress group (CMGG; 26C for 19 h, 40C for 5 h) (n = 16 per group). The results showed that high temperature treatment decreased (p<0.05) the growth performance and intestinal glucose absorption but there was no change (p>0.05) in the expression of SGLT1 and GLUT2 genes in the small intestine of pigs compared with the NTCG. Dietary supplementation with CMG improved the growth performance, and increased the activity of disaccharidases in duodenum and jejunum of heat stressed pigs (p<0.05). CMG treatment increased (p<0.05) the protein levels of SGLT1 and GLUT2 in the small intestine, and up-regulated (p<0.05) the expression of SGLT1 and GLUT2 genes in the duodenum and jejunum but without changing (p>0.05) them in the ileum compared with the HTCG. These results indicated that CMG treatment significantly improved porcine growth performance, and increased intestinal glucose absorption and transport by BBMVs under heat stress, in addition to up-regulating the expression of SGLT1 and GLUT2 genes in porcine duodenum and jejunum.
Keywords: Chinese Medicine Granule; Heat Stress; Pig; Intestinal BBMVs; Glucose Absorption
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