Influence of Pterocarya fraxinifolia on adhesion and counts of E. coli in piglet gut
2012
Nagyová, V., University of Veterinary Medicine and Pharmacy in Košice | Mudroňová, D. | Nemcová, R. | Gancarčíková, S.
Post-weaning syndrome (PWS) is a serious economic problem on pig farms. A possible alternative method of prevention may be the application of plant preparations to the diet. This study investigated the effect of Pterocarya fraxinifolia (Caucasian wingnut) on the growth and adhesion of E. coli in individual gut sections of germ-free (gnotobiotic) piglets. Our experiment was performed on 20 germfree piglets that were genetically susceptible to E. coli O149: F4ac infection. The piglets were divided into 2 groups of 5 animals in each (Pterocarya group and infected control). Piglets in the Pterocarya group were fed milk replacer with the addition of 1 % of Pterocarya fraxinifolia. On day 5 of age the piglets of both groups were challenged orally with E. coli O149: F4ac. Samples were taken on day 3 following the infection. Pterocarya fraxinifolia did not affect the numbers of E. coli in the contents of the jejunum, ileum and colon or the faeces. Also, no suppressive effect on the adhesion of E. coli to the intestinal mucosa was observed.
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