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?



incorrect answer

This is a classic example of coccidiosis in pigs due to Isospora suis. It is the most common cause of scour in pigs beyond the second week of life.

If uncomplicated with secondary infection it is rarely fatal but can restrict weaning weights by up to 2.5 kg/pig at weaning. Whilst extensive sampling may find coccidial oocysts in affected herds the most reliable diagnosis is achieved by sacrifice of a newly affected pig with histopthological examination of small intestinal loops fixed in formal saline.

In uncontrolled disease both E coli and rotavirus can complicate primary coccidial infection.

Treatment of affected pigs is often unrewarding with pigs continuing to scour until they are weaned. Post weaning performance can be compromised by both the extensive gut damage and underweight pigs weaned.

The disease is a feature of poor farrowing accommodation hygiene; detergents followed by disinfection will help reduce risk but oocysts are resiliant and can survive despite cleaning.

Subclinical infection and inadequate control may be linked to post weaning failure to thrive due to maldigestion.

Week of 21-Jun-2018

Spinal chord compression was detected when inspecting this pig carcass. What is the cause of this lesion?

Week of 14-Jun-2018

The unit has an increase of coughing and poor growth rates. What is the most likely cause of this lesion?

Week of 07-Jun-2018

The vet in the slaughterhouse condemns a sow with this skin lesions under welfare grounds and reports the farmer. What is the cause of these lesions?

Week of 01-Jun-2018

Widespread petechiation and congestion of the lung. What is the most likely cause of this lesion?

Week of 24-May-2018

A weaner pig is laying on its side unable to walk, making paddling movements, eyes rolling and with opisthotonus. What is the cause of the problem in this case?

Week of 17-May-2018

A batch of finishing pigs is presented to the slaughterhouse with skin lesions around the perineal area and lower body parts. What is the cause of this lesion?

Week of 10-May-2018

A heavily pregant sow is found in the pen with blood in the vulva. What is the cause of it?

Week of 03-May-2018

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?

Week of 27-Apr-2018

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?