Table 1 The clinical symptoms, blood parameters and blood chemistry of the dourine-infected stallion

Clinical symptoms

Slight edema in the genital organ

Slight paraphimosis

A large amount of smegma around the penis

Small skin lesion

Slight anemia

Blood parameters

WBC: 12.9 ×10³ cells/μl (slightly high)

RBC: 6.32 ×10⁶ cells/μl (slightly low)

HGB: 10.6 g/dl (slightly low)

HCT: 30.9 % (slightly low)

Other parameters: normal (MCV, MCH, MCHC, PLT)

Blood chemistry parameters

Normal (ALP, ALT, AST, albumin, total protein, total cholesterol, bilirubin, BUN, creatinine, amylase)

Parasitemia

Swab of the urethral tract mucosa: a lot of trypanosomes

Blood: < 2.5 × 10⁵ cells/ml^a (1 trypanosome per 500 fields; magnification 400×)

Cerebrospinal fluid: relatively a lot of trypanosomes in sediment