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Acute phase protein response in goats

Correspondence: ¹Corresponding Author: José J. Cerón, Department of Animal Medicine and Surgery, Veterinary School, University of Murcia, 30100 Espinardo, Murcia, Spain. jjceron{at}um.es

Acute phase proteins (APPs) are important diagnostic indicators of inflammatory disturbances in animals. The objectives of the current study were to validate analytical methods for measuring haptoglobin (Hp), serum amyloid A (SAA), acid soluble glycoprotein (ASG), fibrinogen, and albumin concentrations in goats and to evaluate their response to an inflammatory stimulus in this species. Intra- and interassay coefficients of variation (CVs) were in the range 0.07–9.31% and 1.83–12.68%, respectively, for all APPs and showed good precision. All assays determined APPs in a linear manner at different sample dilutions with high correlation coefficients with the exception of fibrinogen, which was measured by the heat precipitation method. Subcutaneous injection of turpentine oil induced an increase in Hp, SAA, ASG, and fibrinogen serum concentrations and a decrease in albumin concentration.

Key Words: Acid soluble glycoprotein • acute phase proteins • albumin • analytical validation • fibrinogen • goats • haptoglobin • serum amyloid A