Molecular Nutrition

Effects of Pediococcus acidilactici on Growth Performance, Intestinal Antioxidant Function, Morphological Structure and Microflora of Finishing Pigs

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  • 1. College of Animal Science and Veterinary Medicine, Shanxi Agricultural University, Shanxi Collaborative Innovation Center for High-Productive and Safe Livestock, Taigu 030801, China;
    2. Northwest A&F University, Yangling 712100, China;
    3. Tianjin Agricultural University, Tianjin 300384, China

Received date: 2017-02-01

  Online published: 2017-08-02

Abstract

This study was conducted to investigate effects of Pediococcus acidilactici on growth performance, intestinal antioxidant function, morphological structure and microflora of finishing pigs. Forty-eight crossed-bred (Duroc×Landrace×Yorkshine) finishing pigs with similar body weight [(62.57±1.20) kg] were selected and randomly allotted to 2 groups with 4 replicates per group and 6 pigs per replicate (half male and half female). Control group was fed a basal diet and experimental group was fed the basal diet supplemented with 0.1 g/kg Pediococcus acidilactici (1.0×1010 CFU/g). The experiment lasted for 56 days. The results showed that, compared with control group: 1) the supplementation of Pediococcus acidilactici had no significant effects on average daily feed intake, average daily gain, feed to gain ratio (P>0.05). 2) Glutathione peroxidase activity in duodenum, total superoxide dismutase, total antioxidant capacity activity of jejunum, and catalase of ileum were significantly increased by the supplementation of Pediococcus acidilactici (P<0.05). 3) The supplementation of Pediococcus acidilactici significantly decreased crypt depth of duodenum, significantly increased mucosal thickness, intestinal thickness and villus height/crypt depth of duodenum (P<0.05); the supplementation of Pediococcus acidilactici significantly decreased crypt depth of jejunum (P<0.05), and significantly increased villus height/crypt depth (P<0.05); the supplementation of Pediococcus acidilactici significantly increased villus height of ileum (P<0.05). 4) The supplementation of Pediococcus acidilactici significantly increased lactobacillus count and colonization resistance, and significantly decreased E.coli count of jejunum (P<0.05). In conclusion, the supplementation of 0.1 g/kg Pediococcus acidilactici (1.0×1010 CFU/g) can improve intestinal microflora and morphological structure, enhance oxidation resistance, and improve the intestinal health of finishing pigs.

Cite this article

QIN Hong, ZHAO Yan, CHE Xiangrong, LI Minhua, CAI Chuanjiang, GUO Liang . Effects of Pediococcus acidilactici on Growth Performance, Intestinal Antioxidant Function, Morphological Structure and Microflora of Finishing Pigs[J]. Chinese Journal of Animal Nutrition, 2017 , 29(8) : 2953 -2960 . DOI: 10.3969/j.issn.1006-267x.2017.08.040

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