RESEARCH PAPER

Effects of Compound Lactic Acid Bacteria Fermented Feed on Growth Performance, Fecal Microflora, Serum Immune and Antioxidant Indexes of Growing Pigs

  • LIU Hui ,
  • JI Haifeng ,
  • WANG Sixin ,
  • ZHANG Dongyan ,
  • WANG Jing ,
  • ZHANG Wei ,
  • WANG Yamin
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  • Institute of Animal Husbandry and Veterinary Medicine, Beijing Academy of Agriculture and Forestry Sciences, Beijing 100097, China

Received date: 2021-06-29

  Online published: 2022-02-15

Abstract

To evaluate the effects of compound lactic acid bacteria fermented feed on growth performance, fecal microflora, serum immune and antioxidant indexes of growing pigs, a total of 90 Landrace×Yorkshire crossbred growing pigs with an average body weight of (40.69±1.16) kg were divided into 3 groups with 3 replicates per group and 10 pigs per replicate. Pigs in the control group were fed a basal diet, and the others in experimental groups were fed the basal diet supplemented with 1% (experimental group Ⅰ) and 3% (experimental group Ⅱ) compound lactic acid bacteria fermented feed, respectively. The trial lasted for 34 days. The results showed that, compared with control:1) the average daily gain (ADG) was significantly increased in experimental group Ⅰ (P<0.05), while the feed/gain (F/G) was significantly decreased in experimental groups Ⅰ and Ⅱ (P<0.05); 2) the number of fecal lactic acid bacteria was significantly increased (P<0.05), while the numbers of Escherichia coli and Staphylococcus aureus were significantly decreased in experimental groups Ⅰ and Ⅱ (P<0.05); 3) the relative abundance of Clostridium_sensu_stricto_1 in experimental groups Ⅰ and Ⅱ was significantly increased (P<0.05), while the relative abundance of Bacteroidetes in experimental groups Ⅰ and Ⅱ and Streptococcus in experimental group Ⅱ were significantly decreased (P<0.05); 4) serum total protein (TP) and globulin (GLB) contents were significantly increased (P<0.05), while the contents of urea nitrogen (UN) and total cholesterol (TC), and the alanine transaminase (ALT) activity were significantly decreased in experimental groups Ⅰ and Ⅱ (P<0.05), and the serum aspartate aminotransferase (AST) activity was significantly decreased in experimental group Ⅰ (P<0.05); 5) the contents of immunoglobulin G (IgG) and immunoglobulin M (IgM), and the activities of superoxide dismutase (SOD) and glutathione peroxidase (GSH-Px) in serum were significantly increased (P<0.05), while the malonaldehyde (MDA) content was significantly decreased in experimental groups Ⅰ and Ⅱ (P<0.05). In summary, dietary 1% compound lactic acid bacteria fermented feed can improve the growth performance and the intestinal microbial composition of growing pigs, and enhance the body's immune function and antioxidant ability.

Cite this article

LIU Hui , JI Haifeng , WANG Sixin , ZHANG Dongyan , WANG Jing , ZHANG Wei , WANG Yamin . Effects of Compound Lactic Acid Bacteria Fermented Feed on Growth Performance, Fecal Microflora, Serum Immune and Antioxidant Indexes of Growing Pigs[J]. Chinese Journal of Animal Nutrition, 2022 , 34(2) : 783 -794 . DOI: 10.3969/j.issn.1006-267x.2022.02.013

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