Effects of Sour Soup on Growth Performance, Immune Performance, Antioxidant Performance and Intestinal Microflora of Weaned Piglets

  • LU Shengyong ,
  • CHEN Shengchang ,
  • ZHANG Taotao ,
  • LU Xiaoluo ,
  • LI Jingshang ,
  • LI Haixia
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  • College of Animal Science, Guizhou University, Guiyang 550025, China

Received date: 2020-07-07

  Online published: 2021-02-04

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Abstract

The aim of this experiment was to explore the effects of sour soup on growth performance, immune performance, antioxidant performance and intestinal microflora of weaned piglets. Forty-five healthy weaned piglets at the age of 31 days with body weight of (5.34±0.86) kg were randomly divided into 5 groups and each group had 3 replicates with 3 piglets per replicate. Piglets in trial group Ⅰ as the control group were fed a basal diet, while those in trial groups Ⅱ, Ⅲ, Ⅳ and Ⅴ were fed diets adding with 0.5%, 1.0%, 1.5% and 2.0% sour soup based on the basal diet, respectively. The preliminary test was 7 d and the formal test was 40 d. The results showed that average daily gain (ADG) in trial groups Ⅱ, Ⅲ, Ⅳ and Ⅴ was significantly higher than that in trial group Ⅰ (P<0.05). The diarrhea rate in trial group Ⅴ was significantly lower than that in trial groups Ⅱ, Ⅲ and Ⅳ (P<0.05). The content of serum immune globulin G (IgG) in trial group Ⅴ was 2.86 g/L and significantly higher than that in trial groups Ⅰ, Ⅱ and Ⅲ (P<0.05). The activity of serum superoxide dismutase (SOD) in trial group Ⅴ was significantly higher than that in trial groups Ⅰ, Ⅱ, Ⅲ and Ⅳ (P<0.05). The activity of serum glutathione peroxidase (GSH-Px) in trial group Ⅳ was significantly higher than that in the other groups (P<0.05). The content of serum malondialdehyde (MDA) in trial group Ⅳ was significantly lower than that in trial groups Ⅰ and Ⅱ (P<0.05). The villus height/crypt depth of jejunum in trial group Ⅴ was significantly higher than that in trial group Ⅰ (P<0.05). Dietary supplemented with sour soup had an increasing trend on Firmicutes relative abundance and had a decreasing trend on Bacteroidetes relative abundance. The relative abundance of Lactobacillus in cecum in trial group Ⅳ was significantly higher than that in trial group Ⅰ (P<0.05). Based on above results, adding proper amount of sour soup into diets can improve the growth performance, immune performance and antioxidant performance of weaned piglets, promote the small intestine morphological development and improve the cecum microflora structure of weaned piglets in some extent. Furthermore, sour soup can be used as feed additive of weaned piglets.

Cite this article

LU Shengyong , CHEN Shengchang , ZHANG Taotao , LU Xiaoluo , LI Jingshang , LI Haixia . Effects of Sour Soup on Growth Performance, Immune Performance, Antioxidant Performance and Intestinal Microflora of Weaned Piglets[J]. Chinese Journal of Animal Nutrition, 2021 , 33(2) : 769 -778 . DOI: 10.3969/j.issn.1006-267x.2021.02.018

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