Week of 31-Jul-2017

A first parity weaned sow can not hold her weight. It shows poor response to antibiotics and NSAIDS. What is the most likely cause of this lesion?

Confirm

Results

Correct answer

Severe erosion of the articular cartilage in the right humeral epiphysis.

Osteochondrosis is common in the rapidly growing pig. It arises due to abnormal changes in the articular cartilage and the growth (epiphyseal) plates. Damage to the cartilage tends to be progressive and irreversible.

The aetiology of osteochondrosis (OCD) is mulifactorial: bad leg conformation is a predisposing factor. Trauma is also involved so slippery floors or overcrowding have a negative effect. Defects in vascular supply, and calcium /phosphorus supply or imbalance also have an effect in OCD.

OCD can affect heavy finisher animals and gilts and may involve the femoral head. In older animals can cause  caudal weakness and inability to stand and often occurs around farrowing time.

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?

Week of 29-Sep-2017

Which disease could cause this type of lesion?

Week of 22-Sep-2017

What is the likely cause of this lesion seen in >10% of lungs in slaughter pigs each week from a breeder feeder farm?

Week of 15-Sep-2017

The ulcer shown is in the preputial diverticulum of an adult boar culled due to persistent haemorrhage in the ejaculate. What is the likely cause?

Week of 08-Sep-2017

This non-fatal scour is seen in piglets from 10 days of age. What is the most likely primary cause?

Week of 01-Sep-2017

Which infectious disease is the most likely cause of the haemorrhages visible on the serosal surfaces of this growing pig which was found dead?

Week of 25-Aug-2017

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