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?
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 19-Jan-2018
Some pigs have swollen ears and walk with their heads tilted to one side. What is the most likely cause of this lesion?
Week of 12-Jan-2018
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?
Week of 05-Jan-2018
Small intestine opened during a routine check in the slaughterhouse: what can we see?
Week of 29-Dec-2017
This pig has a mass protruding from behing. What is the most likely cause of this lesion?
Week of 22-Dec-2017
Sucking pigs develop swollen joint in the legs from 3 weeks of age. What is the most likely cause of this lesion?
Week of 15-Dec-2017
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?
Week of 08-Dec-2017
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?
Week of 01-Dec-2017
Piglets are born with a swollen and reddish vulva. What is the most likely cause of this lesion?