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Enteric Diseases

(417) A scour or diarrhoea problem in growing pigs is likely to be associated with one or more of the following diseases. (Common ones *).
  • Anthrax (rare).
  • Classical swine fever (in those countries where it is still endemic).
  • Coliform infections and post-weaning diarrhoea *
  • Colitis (non specific) *.
  • Oedema disease (diarrhoea uncommon).
  • Parasites.
  • Porcine epidemic diarrhoea PED *.
  • Porcine enteropathy including PHE, PIA, NE and RI *.
  • Rotavirus.
  • Salmonellosis *.
  • Spirochaetal diarrhoea.
  • Swine dysentery *.
  • TGE (rare in Europe now but still common in some other countries).
Refer to the above specific diseases after a diagnosis has been made in a laboratory. Use the following flow diagram (Fig.9-23) to assist in interpreting the clinical picture.

Other agents such as adenoviruses, astroviruses, bredaviruses, calciviruses, toroviruses, picoburnaviruses and chlamydia, have been identified in diarrhoeic faces but their significance is mostly unknown. Adenoviruses may be involved in pneumonia and are thought sometimes to worsen other pneumonias such as enzootic pneumonia. Bredaviruses have been associated with loss of appetite, weakness, tremors and death in weaners but it is extremely rare. Chlamydia cause conjunctivitis, coughing and arthritis (and in sows have been associated with infertility and stillbirths). Non of these agents cause common diseases of any importance in pigs and are best ignored by the pig farmer.

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