SWINE NUTRITION AND FEED

Effects of Plant Essential Oil Compounds on Growth Performance, Serum Biochemical Parameters, Fecal Microbial Numbers and Volatile Fatty Acid Contents of Weaned Piglets

  • WANG Renjie ,
  • ZHAO Jinbiao ,
  • LAI Jinhua ,
  • FU Huiyang ,
  • LEI Yan ,
  • LYU Jirong ,
  • LI Ju ,
  • WU Zhenlong
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  • 1. College of Animal Science and Technology, China Agricultural University, Beijing 100193, China;
    2. DadHank Biotechnology Corporation, Chengdu 611130, China;
    3. Henan Yinfa Animal Husbandry Co., Ltd., Zhengzhou 451100, China

Received date: 2021-04-27

  Online published: 2021-12-16

Abstract

The aim of this study was to evaluate the effects of plant essential oil compounds on growth performance, serum biochemical parameters, fecal microbial numbers and volatile fatty acid contents of weaned piglets. A total of 160 Landrace×Yorkshire crossbred weaned piglets with initial body weight of (8.06±0.09) kg were randomly divided into 4 groups with 5 replicates per group and 8 pigs per replicate. Pigs in the control group were fed a basal diet, and others in experimental groups were fed the basal diet supplemented 300, 450 and 600 mg/kg plant essential oil compounds, respectively. The experiment lasted for 14 days. The results showed as follows:1) dietary different supplemental levels of plant essential oil compounds had no significant effects on the average daily feed intake, average daily gain and feed to weight ratio of weaned piglets (P>0.05). Compared with the control group, dietary 450 and 600 mg/kg plant essential oil compounds significantly decreased the diarrhea rate and fecal index of weaned piglets (P<0.05). 2) Compared with the control group, dietary 450 mg/kg plant essential oil compounds significantly decreased the serum diamine oxidase activity of weaned piglets (P<0.05), dietary 450 and 600 mg/kg plant essential oil compounds significantly increased the serum total antioxidant capacity of weaned piglets (P<0.05), dietary 300, 450 and 600 mg/kg plant essential oil compounds significantly increased the serum catalase activity of weaned piglets (P<0.05), and dietary 450 mg/kg plant essential oil compounds significantly decreased the contents interleukin-1β, interleukin-6 and tumor necrosis factor-α in serum of weaned piglets (P<0.05). 3) Dietary different supplemental levels of plant essential oil compounds had no significant effects on the numbers of Escherichia coli and Lactobacillus in feces of weaned piglets (P>0.05). 4) Compared with the control group, dietary 300, 450 and 600 mg/kg plant essential oil compounds significantly increased the fecal acetate content of weaned piglets (P<0.05), and dietary 600 mg/kg plant essential oil compounds significantly increased the fecal valerate and total volatile fatty acid contents of weaned piglets (P<0.05). In conclusion, dietary plant essential oil compounds have no significant effects on the growth performance of weaned piglets, but can reduce the diarrhea rate, improve the inflammatory level and intestinal permeability, and increase the body antioxidant capacity and fecal volatile fatty acid contents. Under the experimental conditions, the dietary optimal supplemental level of plant essential oil compounds for weaned piglets is 450 mg/kg.

Cite this article

WANG Renjie , ZHAO Jinbiao , LAI Jinhua , FU Huiyang , LEI Yan , LYU Jirong , LI Ju , WU Zhenlong . Effects of Plant Essential Oil Compounds on Growth Performance, Serum Biochemical Parameters, Fecal Microbial Numbers and Volatile Fatty Acid Contents of Weaned Piglets[J]. Chinese Journal of Animal Nutrition, 2021 , 33(12) : 6730 -6739 . DOI: 10.3969/j.issn.1006-267x.2021.12.015

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