China Animal Husbandry and Veterinary Medicine ›› 2022, Vol. 49 ›› Issue (7): 2586-2592.doi: 10.16431/j.cnki.1671-7236.2022.07.016

• Nutrition and Feed • Previous Articles     Next Articles

Effects of Plant Essential Oils on Immune Function, Antioxidant Capacity and Gut Microbiota of Shan Partridge Ducks

LI Hongying1, HE Qin2, HUANG Enfu1, LIANG Qi1   

  1. 1. Jiangxi Biotech Vocational College, Nanchang 330200, China;
    2. College of Life Sciences, Nanchang Normal University, Nanchang 330032, China
  • Received:2022-01-17 Online:2022-07-05 Published:2022-06-29

Abstract: 【Objective】 The effects of plant essential oils (13.5% thymol and 4.5% cinnamaldehyde) on immunity function,antioxidant capacity and gut microbiota of Shan Partridge ducks were studied.【Method】 A total of 200 forty-week-old healthy ducks with similar laying performance and body weight were divided into 4 treatments with 5 replicates per group and 10 Shan Partridge ducks per replicate,and the ducks were fed the basal diet supplemented with 0,50,150,200 mg/kg plant essential oil,the experiment lasted 30 days.On the 28th to 30th day of the experiment,eggs (close to the average egg weight) were randomly selected from each group for analysis of egg quality.At the end of the experiment,one duck was selected for each replicate,blood was collected to detect serum immunoglobulin (Ig),complement protein,antioxidant capacity,and after slaughter the contents of duck cecum were collected for the detection of intestinal gut microbiota.【Result】 Compared with the control group, the egg weight, eggshell weight, albumen weight, yolk weight and transverse diameter were significantly increased (P<0.05), and the serum malondialdehyde content significantly decreased in the group of plant essential oil (P<0.05),but there was no significant difference in the proportion of egg components among the groups (P>0.05); The serum immunoglobulin A, immunoglobulin G, immunoglobulin M contents and the serum glutathione peroxidase content of ducks were significantly increased (P<0.05), the relative abundance of Bacteroidetes, Parabacteroides and Prevotellaceae NK3B31 group were increased,and the relative abundance of Ralstonia in cecum of shan partridge duck were decreased (P<0.05) in the 150 mg/kg and 200 mg/kg plant essential oil groups.【Conclusion】 The dietary supplementation with plant essential oil could increase egg weight,immune function and antioxidant capacity of ducks,and improve caecal microbiota structure of Shan Partridge ducks.Overall consideration,the appropriate amount of plant essential oil to be added was 150 mg/kg.

Key words: plant essential oil; Shan Partridge ducks; immune function; antioxidant; gut microbiota

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