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Studies on preweaning piglet diarrhoea

S J Driesen1, P G Carland, V A Fahy

  • 1Bendigo Agriculture and Veterinary Centre, Victoria.

Australian Veterinary Journal
|July 1, 1993
PubMed
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Isospora suis is the primary cause of preweaning piglet diarrhea, affecting over half of examined piglets. This common enteropathogen is widespread across piggeries, with diarrhea typically starting around 10 days of age.

Area of Science:

  • Veterinary Medicine
  • Animal Science
  • Parasitology

Background:

  • Preweaning piglet diarrhea is a significant issue in swine production.
  • Identifying causative agents and risk factors is crucial for effective disease management.

Purpose of the Study:

  • To determine the primary causes and risk factors of diarrhea in piglets before weaning.
  • To investigate the prevalence and distribution of enteropathogens in diarrheic piglets.

Main Methods:

  • Faecal samples from 2380 diarrheic piglets (5-30 days old) were analyzed for enteropathogens.
  • Isospora suis oocysts, Escherichia coli, and rotavirus were specifically targeted.
  • Data from 4086 litters in two intensive piggeries were analyzed for incidence patterns.

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Main Results:

  • Isospora suis oocysts were identified in 53.8% of samples, making it the most prevalent pathogen.
  • Escherichia coli (18.2%) and rotavirus (16.9%) were also detected.
  • Isospora suis was found on 70.9% of 151 piggeries, with peak diarrhea onset at 10 days of age.

Conclusions:

  • Isospora suis is the most common enteropathogen associated with preweaning piglet diarrhea.
  • Diarrhea incidence showed no seasonal variation or effect of sow parity.
  • Early-onset diarrhea in piglets is strongly linked to Isospora suis infections.