›› 2018, Vol. 45 ›› Issue (8): 2182-2189.doi: 10.16431/j.cnki.1671-7236.2018.08.017

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Effects of Enterococcus faecium on Antioxidant Function in Serum and Liver of Arbor Acres Broilers

MAO Junzhou, DONG Li, WANG Shunan, PENG Zhong, ZHONG Zhaoxin, YU Lihuai   

  1. College of Animal Science and Technology, Yangzhou University, Yangzhou 225009, China
  • Received:2018-12-22 Online:2018-08-20 Published:2018-08-15

Abstract:

The experiment was aimed to investigate the effects of dietary Enterococcus faecium on antioxidant capacity in serum and liver of Arbor Acres (AA) broilers.A total of 600 AA broilers (roosters) with 1-day-old were randomly allocated into 5 groups with 6 replicates per group.Treatments in control group (CON group) were fed a basal diet,antibiotic group (Ant group) was fed a basal diet supplemented with 0.1% chlorotetracycline,the three groups (LEF,MEF and HEF groups) were fed the basal diet supplemented with 50,100 and 200 mg/kg Enterococcus faecium,respectively.The results showed that:① At 21 days of age,the activity of total antioxidant capacity (T-AOC) and glutathione peroxidase (GSH-Px) activity in serum of HEF group were significantly higher than that of CON group (P<0.05),T-AOC in the serum of Ant group was significantly higher than that of CON group (P<0.05).At 42 days of age,the contents of malondialdehyde (MDA) in serum of MEF and HEF groups were significantly lower than that of CON group (P<0.05);The activity of superoxide dismutase (SOD) in serum of LEF group was significantly higher than that of CON and Ant groups (P<0.05).② At 21 days of age,the activity of GSH-Px and T-AOC in MEF and HEF groups were significantly higher than that of CON group (P<0.05),and T-AOC in liver of HEF group was significantly higher than that of Ant group (P<0.05).At 42 days of age,the activity of CAT in liver of HEF group was significantly higher than that of CON group (P<0.05).The results showed that the diet added Enterococcus faecium could significantly increase the activity of GSH-Px and T-AOC and decrease the content of MDA in serum and liver,increase the activity of antioxidant enzyme,improve anti-oxidative stress ability of broiler,and the basal diet supplemented with 200 mg/kg Enterococcus faecium was comparable to that of antibiotics in improving the antioxidant capacity of serum and liver.

Key words: Enterococcus faecium; broiler; serum; liver; antioxidant function

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