RESEARCH PAPER

Effects of Postbiotics Lactobacillus plantarum on Growth Performance, Slaughter Performance and Intestinal Health of Broilers

  • HUANG Jingui ,
  • ZHANG Yong ,
  • LI Fangfang ,
  • ZHANG Ruiyang ,
  • YIN Dafei ,
  • LI Xueping ,
  • YIN Menghui
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  • 1. College of Animal Science and Veterinary Medicine, Shenyang Agricultural University, Shenyang 110866, China;
    2. Jiangxi Haoshiwo Biotechnology Co., Ltd., Yichun 336000, China;
    3. Dongguang County Agricultural and Rural Bureau, Dongguang 061600, China

Received date: 2022-05-05

  Online published: 2022-11-14

Abstract

This experiment aimed to determine the appropriate amount of PLP in broiler diets by investigating the effects of different doses of postbiotics Lactobacillus plantarum (PLP) on the growth performance, slaughter performance, intestinal enzyme activities and cecal microbial composition and diversity of broilers. A total of 600 healthy 1-day-old Arbor Acres (AA) male broiler chickens with similar body weight were selected and randomly divided into 5 groups with 6 replicates per group and 20 broilers per replicate. Broilers in the control group were fed a basal diet, and those in the PLP group were fed diets supplemented with 200, 400, 600 and 800 g/t PLP on the basis of the basal diet, respectively. Broilers were slaughtered and sampled until the 42nd day. The results showed that compared with the control group, adding 600 and 800 g/t PLP to the diet significantly or extremely significantly increased the final body weight of 1- to 14-day-old broilers (P<0.05 or P<0.01), adding 400, 600 and 800 g/t PLP significantly or extremely significantly increased the average daily gain of 1- to 14-day-old broilers (P<0.05 or P<0.01), and adding 400 and 800 g/t PLP significantly or extremely significantly increased the average daily feed intake of 1- to 14-day-old broilers (P<0.05 or P<0.01); adding 400 g/t PLP to the diet extremely significantly increased the final body weight and average daily gain of 15- to 28-day-old broilers (P<0.01), and extremely significantly decreased the feed/gain of 15- to 28-day-old broilers (P<0.01); adding 400 and 600 g/t PLP to the diet significantly increased the average daily gain and European performance index (EPI) of 1- to 42-day-old broilers (P<0.05), and significantly reduced the feed/gain of 1- to 42-day-old broilers (P<0.05); adding 600 g/t PLP to the diet significantly increased the slaughter rate, Half evisceration rate and full evisceration rate of 42-day-old broilers (P<0.05), significantly increased the duodenal amylase, lipase and trypsin activities of 42-day-old broilers (P<0.05), and significantly increased the operational taxonomic units (OTUs) number, Chao1 index, ACE index and the relative abundance of beneficial bacterium Butyricimonas of cecal microorganisms of 42-day-old broilers (P<0.05). The quadratic curve fitting of the growth performance indexes of broilers showing that the appropriate amount of PLP added in broiler diets is 455 to 490 g/t.

Cite this article

HUANG Jingui , ZHANG Yong , LI Fangfang , ZHANG Ruiyang , YIN Dafei , LI Xueping , YIN Menghui . Effects of Postbiotics Lactobacillus plantarum on Growth Performance, Slaughter Performance and Intestinal Health of Broilers[J]. Chinese Journal of Animal Nutrition, 2022 , 34(11) : 7109 -7119 . DOI: 10.3969/j.issn.1006-267x.2022.11.030

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