Week of 27-May-2022

What are the small 1µm diameter organisms (arrowed) inside the red blood cells of this pale anaemic gilt ?

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This is anaemia due to the small bacterium Mycoplasma suis (previously known as Eperythrozoon). Affected gilts appear dull, thin and pale with a low colostrum and milk yield. Anaemia in pigs may be confirmed by examination of the areas inside the sclera inside the eyelids, which are pale and white. Thin smears of blood films can be fixed in methanol and stained by routine blood stains, such as the Giemsa stain to search for the small Mycoplasma suis. Typically in Mycoplasma suis infections, the red cell counts are very low, such as 4.2 to 5.5 x 106 cells per mm3 of blood, compared to a suggested normal range of 5.6 to 9.5 5 x 106 cells per mm3. This disease occurs sporadically in groups of pigs, where needles and syringes and farm equipment are shared among different pigs. This may act to spread the infection from one infected group of pigs to another, such as from old to new breeding pigs.

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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 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?

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:

Week of 08-Sep-2023

The most frequent localization of PDNS lesions is:

Week of 01-Sep-2023

What lesion can be seen?