Week of 12-May-2017

There is an increase in pigs with a swollen mass behind the rear legs, below the anus. It is most frequently located on the side. What is the most likely cause of this lesion?

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The unilateral swollen mass in the rear of the hind legs below the anus is a scrotal hernia.

It is thought that it is caused by failed obliteration of the process vaginalis after descent of the testis, or from failed involution at the internal inguinal ring such that it does not close off properly after the testes descend into the scrotum. 

There is some genetic predisposition and some enviromental factors that can lead to an increase of ruptures. Some of those enviromental effects that could have an effect in the rate of hernias can be increased pressure at early age (piglet piling due to handling, cold temperature) or deficient castration technique.

Hernias can affect the growth of the animal, as well as its survival rate and the value of the carcass.

Week of 20-Apr-2018

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

Week of 13-Apr-2018

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?

Week of 06-Apr-2018

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

Week of 29-Mar-2018

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

Week of 22-Mar-2018

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

Week of 16-Mar-2018

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

Week of 09-Mar-2018

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

Week of 02-Mar-2018

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?

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?