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?




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 14-Jul-2017

There is a disease outbreak with sudden deaths, inappetence, high fever and difficult breathing in pigs from 15 weeks until slaughter. The slaughterhouse inspection shows lungs like those in the image. What is the most likely cause?

Week of 07-Jul-2017

There is an arthritis and skin lesion associated increase in condemnation rates at the slaughterhouse. What is the most likely cause of this problem?

Week of 30-Jun-2017

This is a 7 day old piglet that was born with this condition on the skin. What is the most likely cause of this lesion?

Week of 23-Jun-2017

This lesion is caused by:

Week of 16-Jun-2017

This lesion is caused by:

Week of 09-Jun-2017

This piglet is lethargic and non-pruritic. What is the cause of this condition?

Week of 02-Jun-2017

The following lesion is occasionally seen on the placenta following a normal full term farrowing. What is it and what is its significance?

Week of 26-May-2017

In this confinement stall the slat level is below the passageway and the rear door is tight to the floor. Which of the following comments is true

Week of 19-May-2017

A dry white deposit is evident on the mucosal surface of the vulva of a sow served 25 days previously. What is it and what is its significance?