Serum acute phase proteins in cows with SARA (Subacute Ruminal Acidosis) suspect

the aim of this study was to evaluate the variations of acute phase proteins (apps) and other blood constituents during the onset of the sub-acute ruminal acidosis (sara) pathological status. a total of 108 cows from 12 dairy herds were randomly selected and divided into three groups of 36 animals each. all animals were subjected to a rumenocentesis. group a was composed by subjects with a rumen ph>5.8, group b was composed by subjects with a rumen ph ≤5.5≤5.8 and group c was composed by subjects with a rumen ph<5.5. blood samples were collected by jugular venipuncture and haptoglobin (hp), serum amyloid a (saa), total proteins, albumin and white blood cells (wbc) were determined. one-way anova showed a statistical significance on rumen ph, hp, saa. sara seems not stimulate the apps production from liver.