Salmonella Gallinarum is an important problem for conventional poultry in developed countries.
NTPDase and adenosine deaminase activities have been demonstrated in several inflammatory conditions.
Changes in activities of NTPDase, 5′nucleotidase, and ADA in laying hens naturally infected by Salmonella were observed.
These enzymes could be biomarkers to determine the severity of inflammatory responses in salmonellosis.
The enzymatic alterations in the purinergic system is related to the pathogenesis of the disease.