A first parity sow is weaned and is lame in the hindleg. There is poor response to treatment with antibiotics and NSAIDS. Separation of the head of the femur has occurred through the growth plate at post-motem. What is the cause of this condition?

What pathogens are involved?

The weaner pig on the left is pale when compared with a normal weaner on the right. These pale pigs are slow growing. What is the cause of the problem in this case?

These piglets are stunt with distended abdomens. The perineal area in these pigs is abnormal at inspection. What is the cause of this condition?

Which lesions are present in this lung?

What is the name of this parasite?

This image of a cross-section of a pig lung is characteristic of a pneumonia caused by:

What could be causing these lesions?

Most of the pigs in this pen have dark coloured over the skin. What is the cause of this condition?

A number of weaners died suddenly within the first 4 weeks post-weaning. All them have oedema of mesocolon at post-mortem examination. What is the most likely cause of this lesion?

Which pathogen causes this lesion?

What lesion is seen?

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

A piglet is born alive with 6 legs. What is the cause of this finding?

Some finishing pigs are found with swelling of the tails with blood. What is the cause of it?

Some gilts and sows have died suddenly during the last few months with no apparent clinical signs of disease. There is haemoperitoneum and splecnomegalia at post-mortem examination. What is the cause of mortality?

A carcass is split in half and an abscess is found in the spine and burst. What is the cause of this lesion?

Many sows have abscesses in the side of the neck. What is the cause of this lesion?

What lesion is seen in this image?

A sow is found with skin lacerations in the pen. What is the cause of this condition?

A number of finishing pigs have ulcerative pododermatitis on the lateral side of their feet which causes lameness. What is the cause of this lesion?

There is an increase of ill thrift and laboured abdominal breathing in 6 to 8 weeks old weaner pigs. There is poor response to antimicrobial treatment. Mortality has increased from 1.5% to 6%. Post-mortemed pigs had interstitial pneumonia. What is it?

Necrotic hepatitis with hepatic parenchyma infiltrated with gas bubbles is detected in a sudden dead sow during post-mortem examination. What is the most likely cause of this lesion?

A lactating sow is found with widespread raised rhomboid lesions on the skin. What is the most likely cause of this lesion?

This sow had poor body condition, was anaemic and was found dead in the pen. The stomach had a dark black content inside. What is the most likely cause of this lesion?

There is bloody diarrhoea and mortality in 3 days old piglets. The small intestine of post-mortemed piglets is dark red, haemorrhagic and filled with bloody fluid. What is the most likely cause of this lesion?

There is profuse yellowish scour, ill thrift and high mortality during the first 72 hours of life. What is the most likely cause of this condition?