The synergistic effect of organic acids, phytochemicals and a permeabilizing complex reduces Salmonella Typhimurium 1,4,[5],12:i-shedding in pigs

Jessica Ruggeri, Fabio Foresti, Roberta Pavesi, Alessia Terrini, Francesca Giudici, Diego Padoan, Attilio Corradi, Maria Cristina Ossiprandi, Paolo Pasquali, Giovanni Loris Alborali

Research output: Contribution to journalArticlepeer-review

Abstract

Salmonella Typhimurium (including S.Typhimurium 1,4,[5],12:i-) and other enteric pathogens cause acute infection in pigs during the weaning stage, often evolving into chronic infections responsible for the introduction of zoonotic bacteria into the slaughterhouse and thus determining carcass contamination. In addition to being zoonotic hazards, these pathogens are responsible for economic losses in affected farms. Traditionally, antibiotic treatments have been largely administered in order to reduce the infection burden but it favored, as a direct consequence, an increase in the number of multi-drug resistance strains. In order to overcome antibiotic-resistance concerns, new alternative control strategies should be developed. In this context, a blend of organic acids, phytochemicals and a permeabilizing complex, administered in feed (Group A - 459 piglets) or water (Group B – 458 piglets), was tested in field conditions for its capability of reducing Salmonella-infection in weaned piglets of an endemic farm. Data recorded were compared to results of a control group (Group C - 456 piglets). Zootechnical parameters were recorded in all animals, while microbiological, serological and PCR analyses were conducted in 15 piglets for each group. Results demonstrated that additive administered in feed improved animal weight gain (better average daily gain [A.D.G.] and increment), and rapidly reduced Salmonella-shedding in feces. Administration of additive in feed gave better results than in water.

Original languageEnglish
Pages (from-to)209-217
Number of pages9
JournalVeterinary Research Communications
Volume42
Issue number3
DOIs
Publication statusPublished - Sep 1 2018

Keywords

  • Organic acids
  • Phytochemicals
  • Salmonella Typhimurium 1,4,[5],12:i-
  • Swine

ASJC Scopus subject areas

  • veterinary(all)

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