As long as the number of one type of white blood cell changes, the distribution of white blood cells in the blood is affected.5) Determination of hematocrit capacity. The amount of hematocrit (abbreviated as specific volume or PCV), anticoagulant is put into a special glass tube, and the ratio of whole blood is calculated.6) Platelet count. In the blood count, find each microliter at the same time The number of platelets in the blood is the platelet count.7) Blood biochemistry test. It mainly tests cholesterol, albumin, total protein, electrolytes, blood calcium, blood iron, blood sugar, liver and kidney function, etc.1.2 UrinalysisUrinalysis is divided into physical examination and chemical examination. Physical tests include color, pH measurements, clarity, and precipitates, and chemical tests include protein, glucose, hemoglobin, and ketone body tests.1.3 Fecal tests aremainly pH, occult blood and parasite tests.2 Clinical significance of veterinarian2.1 Blood test1) Blood sedimentation measurement (erythrocyte sedimentation rate). Erythrocyte sedimentation rates can vary depending on different types of fever, anemia, severe hemolytic disease, and certain