Table 1 Scoring standard for the clinical signs and gastrointestinal gross lesions.
Clinical signs | Gross lesions | ||
|---|---|---|---|
Score | Description | Score | Description |
0 | No any clinical sign | 0 | No any gross lesion |
1 | Disturbance of food intake or unshaped stools | 1 | Abnormal liquid content or gas observed in stomach and in limited segments of small intestine |
2 | Light diarrhea or abdominal swelling | 2 | Abnormal liquid content or gas widely observed in small and large intestines |
3 | Acute diarrhoea, constipation or presence of mucus in excreta | 3 | Abnormal liquid contents or gas observed in whole digestive tract and presence of mucus in colon |
