
20/07/2025
Marble Spleen Disease (MSD) is a viral infection seen in pheasants. Although it makes up a few cases of all primary diagnoses in pheasants, it is still worth keeping an eye out for it.
Believed to cause immune suppression, which can then cause susceptibility to bacterial and protozoal infections. When birds respond poorly to treatment for other diseases, MSD could be responsible for causing the delayed recovery or frequent disease breakdown.
Clinical signs often follow 2-3 weeks following transfer to release pens.
If you are concerned about the health or welfare of your birds, call your local vet or us on 01392 872932
For more information on MSD, click here >>> https://stdavids-gamebirds.co.uk/resources/diseases/pheasant-partridge/marble-spleen-disease/