Greyhound dogs have significant physiologic, hematologic, and biochemical differences when compared with other breeds, including significantly lower serum globulin concentration owing to decreases in the α- and β-globulin fractions. The specific proteins that account for differences in globulin concentrations are not known, but IgA and IgM, both β-globulins, are potential candidates.
The aims of this study were to measure serum IgG, IgA, and IgM in clinically healthy retired racing Greyhounds and compare the results with those of age- and sex-matched non-Greyhound dogs.
Clemente, M., Marín, L., Iazbik, M.C. and Couto, C.G. (2010), Serum concentrations of IgG, IgA, and IgM in retired racing Greyhound dogs. Veterinary Clinical Pathology, 39: 436-439. https://doi.org/10.1111/j.1939-165X.2010.00267.x