Effects of Lactobacillus plantarum on Growth Performance, Slaughter Performance, Serum Immune and Antioxidant Function of Dahen Broilers

  • SONG Xiaoyan ,
  • PENG Han ,
  • YU Chunlin ,
  • CHEN Jialei ,
  • YANG Li ,
  • HU Chenming ,
  • ZHANG Zengrong ,
  • QIU Mohan ,
  • XIA Bo ,
  • XIONG Xia ,
  • JIANG Xiaosong ,
  • DU Huarui ,
  • LI Qingyun ,
  • YANG Chaowu
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  • 1. Animal Breeding and Genetics Key Laboratory of Sichuan Province, Sichuan Animal Science Academy, Chengdu 610066, China;
    2. Sichuan Daheng Poultry Breeding Company, Chengdu 610066, China

Received date: 2020-07-07

  Online published: 2021-02-04

Supported by

 

Abstract

The present study was designed to investigate the effects of Lactobacillus plantarum on growth performance, slaughter performance, serum immune and antioxidant function of Dahen broilers. A total of 2 400 healthy one-day-old Dahen commercial broiler chickens (half male, half female and raised separately) were selected and cocks and hens were both randomly divided into 5 groups with 6 replicates per group and 40 broilers per replicate, respectively. Broilers in the control group (group Ⅰ) were fed a basal diet, and those in groups Ⅱ, Ⅲ, Ⅳ and Ⅴ were fed the basal diets supplemented with 1×105, 1×106, 1×107 and 1×108 CFU/kg Lactobacillus plantarum, respectively. The experiment lasted for 70 days. The results showed as follows: 1) the final body weight of hens in group Ⅴ was significantly increased compared with the control group (P<0.05), while there was no significant difference between the other experimental groups and the control group (P>0.05). There was no significant difference in average daily feed intake, average daily gain and feed to gain ratio among groups both in cocks and hens (P>0.05), but it could be seen that the feed to gain ratio was decreasing with the increase of Lactobacillus plantarum supplemental level. 2) There was no significant difference in slaughter performance among different groups both in cocks and hens (P>0.05). 3) The serum immunoglobulin G (IgG) content of cocks in group Ⅴ was significantly higher than that in the control group and groups Ⅱ, Ⅲ and Ⅳ (P<0.05), the serum contents of immunoglobulin A (IgA) and interferon-γ (INF-γ) of cocks in group Ⅴ were significantly higher than those in groups Ⅱ, Ⅲ and Ⅳ (P<0.05), and the serum contents of immunoglobulin M and interleukin-2 of cocks in group Ⅴ were significantly higher than those in groups Ⅱ and Ⅲ (P<0.05). The serum contents of IgA and IgG of hens in group Ⅴ were significantly higher than those in the control group and group Ⅱ (P<0.05). 4) The serum glutathione peroxidase (GSH-Px) activity of cocks in group Ⅴ was the highest and significantly higher than that in groups Ⅱ and Ⅲ (P<0.05), the serum total superoxide dismutase activity of cocks in group Ⅴ was significantly higher than that in group Ⅲ (P<0.05). The serum GSH-Px activity of hens in group Ⅴ was the highest and significantly higher than that in groups Ⅲ and Ⅳ (P<0.05). There was no significant difference in serum malonaldehyde content among different groups both in cocks and hens. In summary, the diet supplemented with high level of Lactobacillus plantarum can improve the serum immune function and enhance the serum antioxidant function in a certain extent, while has no significant effect on growth performance and slaughter performance of Dahen broilers.

Cite this article

SONG Xiaoyan , PENG Han , YU Chunlin , CHEN Jialei , YANG Li , HU Chenming , ZHANG Zengrong , QIU Mohan , XIA Bo , XIONG Xia , JIANG Xiaosong , DU Huarui , LI Qingyun , YANG Chaowu . Effects of Lactobacillus plantarum on Growth Performance, Slaughter Performance, Serum Immune and Antioxidant Function of Dahen Broilers[J]. Chinese Journal of Animal Nutrition, 2021 , 33(2) : 822 -831 . DOI: 10.3969/j.issn.1006-267x.2021.02.023

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