›› 2018, Vol. 45 ›› Issue (5): 1196-1202.doi: 10.16431/j.cnki.1671-7236.2018.05.009

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Effect of Dietary Supplement with Lactobacillus plantarum on Production Performance, Egg Quality, Plasma Biochemical Parameters in Laying Hens Infected with Salmonella Enteritidis

LIU Cong, HUANG Shimeng, JI Cheng, ZHAO Lihong, ZHANG Jianyun, MA Qiugang   

  1. State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China
  • Received:2017-12-28 Online:2018-05-20 Published:2018-05-19

Abstract:

The aim of this research was to assess the effect of Lactobacillus plantarum on production performance,egg quality and plasma biochemical parameter in laying hens infected with Salmonella Enteritidis.A total of 400 Salmonella-negative laying hens were chosen and randomly assigned to 4 treatments with 5 replicates per treatment and 20 hens per replicate.At the first week of the experiment,the laying hens in groups T1 and T3 were fed basal diet,that in groups T2 and T4 were fed basal diet supplement with 2.0×108 CFU/g Lactobacillus plantarum.And then laying hens in groups T3 and T4 were orally challenged with 1 mL suspension of 1.0×108 CFU/mL Salmonella Enteritidis for 2 consecutive days,while the hens in other two groups were orally challenged with 1 mL PBS.The results showed that:①The laying rate (PSE=0.02) and average daily feed intake (PSE=0.01) of laying hens infected with Salmonella Enteritidis were significantly decreased,and adding Lactobacillus plantarum could significantly increase the laying rate (PLP=0.02) and decrease feed/egg (PLP=0.04).②Lactobacillus plantarum supplementation significantly increased eggshell thickness (PLP=0.01) and eggshell strength (PLP=0.02),and significantly reduced yolk color (PLP=0.02) of laying hens infected Salmonella Enteritidis.③The ALP was extremely significantly increased in laying hens infected with Salmonella Enteritidis(PSE<0.01),whereas Lactobacillus plantarum supplementation could significantly increase AST (PLP=0.02),Ca (PLP=0.04) and P (PLP=0.04) contents.In conclusion,dietary supplement with Lactobacillus plantarum could improve growth performance of hens,and alleviate damages caused by Salmonella Enteritidis,which gave an insight in improving laying hens health.

Key words: Lactobacillus plantarum; laying hens; Salmonella Enteritidis; production performance; egg quality

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