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The paratyphoid salmonellae.

P A Barrow1

  • 1Institute for Animal Health, Compton Laboratory, Newbury, Berkshire, United Kingdom.

Revue Scientifique Et Technique (International Office of Epizootics)
|August 10, 2000
PubMed
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Paratyphoid Salmonella poses a significant threat to poultry and human health. Research explores alternative control methods beyond hygiene and antibiotics to combat Salmonella infections in chickens.

Area of Science:

  • Veterinary Microbiology
  • Food Safety
  • Poultry Science

Background:

  • Paratyphoid Salmonella, with over 2,000 serovars, is a major concern for the poultry industry due to food chain contamination.
  • Infections can cause gastroenteritis in humans and mortality in young chickens, with vertical transmission in adult birds.
  • Salmonella Enteritidis and Salmonella Typhimurium are key serotypes targeted for control due to their association with table eggs.

Purpose of the Study:

  • To review current challenges and explore alternative strategies for controlling paratyphoid Salmonella in poultry.
  • To assess the limitations of traditional control methods like hygiene, testing, and antibiotic use.
  • To identify promising alternative approaches for enhancing poultry resistance to Salmonella.

Main Methods:

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  • Review of scientific literature on Salmonella control in poultry.
  • Analysis of traditional methods: hygiene, management, serological/bacteriological testing, and antibiotic use.
  • Evaluation of alternative strategies: competitive exclusion, killed vaccines, and live vaccines.

Main Results:

  • Rigorous hygiene and management are effective but not always economically viable.
  • Antibiotic use for carriage reduction can lead to resistance and increased susceptibility.
  • Competitive exclusion and vaccination show promise, but safety concerns exist for some live vaccines.

Conclusions:

  • Traditional Salmonella control methods in poultry face economic and resistance challenges.
  • Alternative strategies like competitive exclusion and vaccination offer potential but require further safety and efficacy evaluation.
  • Developing safe and effective alternatives to antibiotics is crucial for controlling Salmonella in the poultry industry.