Acute phase proteins Group of cows P Healthy (Brucella negative) (n=25 ) Brucella positive (n=25 ) Hp (g/l) 0.61 ± 0.08 0.62 ± 0.09 P ≥ 0.05 SAA (µg/ml) 32.92 ± 9.12 123.75 ± 12.64 P ≤ 0.05

Table 1: The mean ± SD for Hp (g/l) and SAA (μg/ml) concentration in the two groups of infected and healthy dairy cows.