Week of 25-Aug-2017
What is the cause of the liver lesion in this heavily pregnant sow found dead?
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 17-Nov-2017
This is a pig with a swollen abdomen. What is the most likely cause of this lesion?
Week of 10-Nov-2017
After an increase of sudden deaths in growing and finishing pigs, lesions like this are detected. What is the most likely cause?
Week of 03-Nov-2017
There is an increase of ill thrift and laboured abdominal breathing in the weaners. There is poor response to antimicrobial treatment. Mortality ranges from 4 to 30%. What is the most likely cause of this lesion?
Week of 27-Oct-2017
This is a newly born piglet that cannot stand on its feet for walking. What is the most likely cause of this lesion?
Week of 20-Oct-2017
There is scour, ill thrift and high mortality during the first 8 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 13-Oct-2017
The unit has an increase of coughing and poor growth rates. What is the most likely cause of this lesion?
Week of 06-Oct-2017
There is an increase of ill thrift and laboured abdominal breathing in the weaners. There were poor response to antimicrobial treatment. Mortality ranges from 6 to 15%. What is the most likely cause of this lesion?