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?

Pigs around 15 weeks old develop purple patches over the hindquarters extending to all over the body. Mortality is high. What is the cause of this lesion?

These piglets died within 24 hours after injecting dextran iron in the leg at 2 days old. What is the cause of this condition?

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?

This pregnant sow is constantly biting the bar above the feeder. What is the most likely cause of this condition?

This sow has large brown scales on the skin over the back. What is the cause of this condition?

This gilt is pale and has a bloody diarrhoea. What is the cause of this condition?

Multiple lung abscessation (Pyaemia) is detected when doing a post-mortem in a finishing pig. What is the cause of this lesion?

There is an increase of regular and irregular returns in the breeding herd accompanied by abortions, stillborns and mummified piglets. All parities are affected. What is the cause of abortion in this picture?

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?

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

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

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

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

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

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?

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

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

Sucking pigs develop swollen joint in the legs from 3 weeks of age. What is the most likely cause of this lesion?

There is an outbreak of sudden deaths, inappetence, high fever and cough in pigs from 10 weeks old to slaughter. Inspection of the lungs in the post-mortemed pigs detects necrotising pneumonia in the diaphragmatic lobe and pleurisy. What is the cause?

There is an increase in subcutaneous haemorrhages and bruises in the skin of piglets from 7 days of age, after being born normal. Mortality was high after few days of developing the clinical signs. What is the most likely cause of this lesion?

Piglets are born with a swollen and reddish vulva. What is the most likely cause of this lesion?

This sow has been weaned 2 weeks ago and has this lesion on the shoulder. What is the most likely cause of this lesion?

This is a pig with a swollen abdomen. What is the most likely cause of this lesion?

After an increase of sudden deaths in growing and finishing pigs, lesions like this are detected. What is the most likely cause?

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?