ORIGINAL PAPER
The effect of plant polyphenols on the antioxidant defence system of weaned piglets subjected to an Escherichia coli challenge
X. R. Jiang 1,   H. J. Zhang 2,   G. Mantovani 1,   G. L. Alborali 3,   J. M. Caputo 1,   G. Savoini 1,   V. Dell’Orto 1,   V. Bontempo 1  
 
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1
Università degli Studi di Milano, Department of Health, Animal Science and Food Safety, Department of Health, Animal Science and Food Safety, Via Celoria 10, 20133 Milan, Italy
2
Chinese Academy of Agricultural Sciences, Key Laboratory of Feed Biotechnology of the Ministry of Agriculture, Zhongguancun Nandajie 12, 100081 Beijing, China
3
Lombardy and Emilia Romagna Experimental Zootechnic Institute, Via Bianchi 9, 25124 Brescia, Italy
CORRESPONDING AUTHOR
V. Bontempo   

Università degli Studi di Milano, Department of Health, Animal Science and Food Safety, Department of Health, Animal Science and Food Safety, Via Celoria 10, 20133 Milan, Italy
Publication date: 2014-11-27
 
J. Anim. Feed Sci. 2014;23(4):324–330
 
KEYWORDS
ABSTRACT
The goal of this study was to evaluate the effect of an optimized plant polyphenol (PP) mixture consisting of polyphenols extracted from apples, grape seeds, green teas and olive leaves on the systemic antioxidant capacity in piglets orally challenged with Escherichia coli (E. coli). A total of 24 piglets were weaned at 28 days and allocated to 4 groups for a 42-d experiment with a 2 × 2 factorial design comparing different dietary treatments [a basal diet without (CTR) or with 0.1% of the optimized PP mixture (PP)] and oral E. coli challenges on days 21 and 25 (saline or E. coli). On days 25, 27 and 34 of the trial, one piglet from each pen was selected for blood sampling. The E. coli challenge decreased the gain-to-feed ratio (G:F) from day 21 to day 42 (P < 0.10), reduced plasma superoxide anion (SAIC) and hydroxyl radical (HRIC) inhibiting capacities, and increased the plasma ceruloplasmin content on day 27 (P < 0.10). PP supplementation increased the G:F ratio from day 21 to day 42 (P < 0.10). Compared with the CTR diet, PP supplementation increased plasma GSH-Px activity on day 25 and plasma T-AOC activity on day 27 (P < 0.10), and dietary PP increased plasma SAIC on day 27 and plasma HRIC on day 34 (P < 0.10). These results suggest that PP supplementation may improve the antioxidant status of post-weaning piglets and counteract some of the negative effects that occur when piglets are challenged with E. coli.
 
CITATIONS (3):
1.
Effect of an essential oils blend on growth performance, and selected parameters of oxidative stress and antioxidant defence of Escherichia coli challenged piglets
X.R. Jiang, X.L. Li, A. Awati, H. Bento, H.J. Zhang, V. Bontempo
Journal of Animal and Feed Sciences
 
2.
Red Grape Pomace Rich in Polyphenols Diet Increases the Antioxidant Status in Key Organs—Kidneys, Liver, and Spleen of Piglets
Veronica Chedea, Laurentiu Palade, Rodica Pelmus, Catalin Dragomir, Ionelia Taranu
Animals
 
3.
Supplemental-coated zinc oxide relieves diarrhoea by decreasing intestinal permeability in weanling pigs
Xinyang Dong, Qianqian Xu, Chao Wang, Xiaoting Zou, Jianjun Lu
Journal of Applied Animal Research
 
ISSN:1230-1388