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ThePigSite Pig Health

Swine Dysentery (SD)

See chapter 9 for further information.

(383) This is a very important disease in the growing and finishing pig but not so in the piglet. It is unusual to see SD in sucking pigs except when the organism Brachyspira hyodysenteriae, first enters the herd. In such cases there may be sloppy faeces in the sow often containing some blood and mucus and a similar type of diarrhoea in piglets. In rare cases it may be much more dramatic with very bloody faeces. In herds in which the organism is endemic the lactating sow may be a carrier and infect the older piglet, but there will be no disease in the piglet until maternal antibodies disappear.

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