Week of 22-Mar-2024
Which infectious disease is the most likely cause of the haemorrhages visible on the serosal surfaces of this growing pig which was found dead?
Results
incorrect answer
Haemorrhagic lesions within a carcass should always raise suspicion of Classical or African Swine Fever (which are pathologically indistinguishable) as would multiple sudden deaths. As well as occuring on serosal surfaces, haemorrhagic lesions are seen in lymphatic tissue —especially the spleen, lymph nodes and tonsils— and parenchymatous tissues. Skin lesions suggestive of septicaemia may also be evident. In more chronic cases button ulcers may be present in the mucosa of the large intestine following a period of high fever prior to death. Reproductive failure in the form of abortion can occur as well as nervous,enteric and respiratory disease in any age pig.
The clinical and epidemiological picture can be useful to differentiate PDNS the pathology of which can suggest haemorrhagic disease. Illness affecting a wide age range of animals would suggest ASF/CSF. If there is any doubt ASF/CSF suspicion should be notified and investigated.
African Swine Fever —against which there is no vaccine— has become widespread in eastern Europe following its initial incursion via Georgia in 2007 and subsequent spread through Russia. It now represents a very real threat to all European pig populations especially where biosecurity lapses occur and wild boar populations are prevalent.
Photo of the week
Week of 19-Apr-2024
Which disease could cause this type of lesion?
Week of 12-Apr-2024
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 05-Apr-2024
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Week of 28-Mar-2024
This non-fatal scour is seen in piglets from 10 days of age. What is the most likely primary cause?
Week of 15-Mar-2024
What is the cause of the liver lesion in this heavily pregnant sow found dead?
Week of 08-Mar-2024
Is there anything strange about any of the pigs in the photo?
Week of 23-Feb-2024
This 6-week-old pig has non-pruritic lesions on the skin. What can it be?
Week of 16-Feb-2024
What is the most likey cause of the lesion seen in a single 10 day old piglet on an outdoor pig unit in January?
Week of 08-Feb-2024
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?
Week of 02-Feb-2024
What is the most likely cause of this condition?
Week of 19-Jan-2024
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 12-Jan-2024
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 05-Jan-2024
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 29-Dec-2023
This lesion is caused by:
Week of 22-Dec-2023
This lesion is caused by:
Week of 08-Dec-2023
This piglet is lethargic and non-pruritic. What is the cause of this condition?
Week of 01-Dec-2023
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 24-Nov-2023
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 17-Nov-2023
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?
Week of 10-Nov-2023
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?
Week of 03-Nov-2023
What caused the sudden death of this 8 week old weaner?
Week of 20-Oct-2023
Mesenteric lymph nodes enlargement are more likely consistent with:
Week of 13-Oct-2023
In which production phase is this finding more frequently observed?
Week of 06-Oct-2023
What is the aetiological cause of this lesion?
Week of 29-Sep-2023
How is the texture of these organs?
Week of 22-Sep-2023
The turbinate lesion is due to:
Week of 15-Sep-2023
This pathology picture is more frequently found in: