Effect of synbiotic supplementation on layer production and cecal Salmonella load during a Salmonella challenge

Autor: G. R. Murugesan, Ashley D. Markazi, Revathi Shanmugasundaram, Amanda Luoma, Ramesh K. Selvaraj, Michaela Mohnl
Rok vydání: 2017
Předmět:
Zdroj: Poultry science. 96(12)
ISSN: 1525-3171
Popis: This study analyzed the inhibitory effects of a synbiotic product (PoultryStar® me) on production parameters, intestinal microflora profile, and immune parameters in laying hens with and without a Salmonella challenge. The synbiotic product contained 4 probiotic bacterial strains (Lactobacillus reuteri, Enterococcus faecium, Bifidobacterium animalis, and Pediococcus acidilactici) and a prebiotic fructooligosaccharide. Layers were supplemented with the synbiotic from d of hatch to 28 wk of age. At 16 wk of age, birds were either vaccinated with Salmonella enterica Enteritidis (SE) vaccine or left unvaccinated. At 24 wk of age, a portion of the birds was challenged with 1 × 109 CFU of SE or left unchallenged, resulting in a 3 (vaccinated, challenged, or both vaccinated and challenged) X 2 (control and synbiotics) factorial arrangement of treatments. At 18 and 20 wk of age, birds fed synbiotics in both vaccinated and unvaccinated groups had increased (P
Databáze: OpenAIRE