Week of 25-Aug-2017

What is the cause of the liver lesion in this heavily pregnant sow found dead?

Confirm

Results

incorrect answer

At post mortem examination, with the carcass still warm, there was blood stained fluid in the abdomen and the liver was in advanced decomposition with aeriation (aero chocolate liver). There was a pungent decomposing smell emanating from the abdomen

The condition is due to toxins produced by Cl novyi which is present in the small intestine and ascends the bile duct. There was mild small intestinal inflamation in this animal

The disease is a common if sporadic cause of death in adult sows especially in late gestation in good condition. The disease tends to occur more frequently in warm weather. It can also be seen in finishing pigs close to slaughter especially those fed wet co-products

It can be confirmed by FAT or PCR testing of the liver.

Similar liver changes can be seen at post mortem examination if the animal has been dead for more than 12-18 hours as part ofthe normal decomposition process. The condition should therefore only be diagnosed on the freshest of carcasses.

If necessary a multivalent Clostridial vaccine can be used but attention to feeding hygiene, avoiding excessive sow condition and good control of environmental temperatures can all reduce the risk.

Week of 23-Feb-2018

Sudden death in 6 – 8 weeks old weaner pigs. Carcasses are pale. There is haemorrhagic abdominal fluid with clotted blood strands and hepatic rupture. Excess of fluid in the thorax. Heart and muscles are pale. What is the most likely cause?

Week of 16-Feb-2018

This pig had a good body condition, was anaemic and died suddenly. The intestinal content is dark black. What is the most likely cause?

Week of 09-Feb-2018

This sow has reddening of skin and considerable pain. What is the most likely cause of this lesion?

Week of 02-Feb-2018

This pig had a good body condition, was anaemic and died suddenly. The stomach had a dark black content inside.

Week of 26-Jan-2018

Necrotic lesions in the feet of a weaner pig. What is the most likely cause of this lesion?

Week of 19-Jan-2018

Some pigs have swollen ears and walk with their heads tilted to one side. What is the most likely cause of this lesion?

Week of 12-Jan-2018

There is scour, ill thrift and high mortality during the first 4 weeks post-weaning. All post-mortemed pigs had the same gross lesions, as the one seen in the picture. What is the most likely cause of this lesion?

Week of 05-Jan-2018

Small intestine opened during a routine check in the slaughterhouse: what can we see?

Week of 29-Dec-2017

This pig has a mass protruding from behing. What is the most likely cause of this lesion?