| 季节数 | 样品数 (匹) | 阳性 (匹) | 总感染率 (%) | 优势虫种在不同季节感染率% | |||
|
| 马圆线虫 | 马副蛔虫 | 毛线虫 | ||||
| 春季 (3~5月) | 95 | 83 | 87.3% | 3月 | 85.2 (81/95) | 76.8 (73/95) | 82.1 (78/95) |
| 4月 | 81.1 (77/95) | 73.6 (70/95) | 52.6 (50/95) | ||||
| 5月 | 82.1 (78/95) | 80.1 (76/95) | 75.7 (72/95) | ||||
| 夏季 (6~8月) | 85 | 69 | 81.2% | 6 月 | 68.2 (58/85) | 70.5 (60/85) | 82.2 (70/85) |
| 7月 | 69.4 (59/85) | 64.7 (55/85) | 68.2 (58/85) | ||||
| 8月 | 72.9 (62/85) | 62.3 (53/85) | 65.8 (56/85) | ||||
| 秋季 (9~11月) | 90 | 76 | 84.4% | 9月 | 82.1 (74/90) | 55.5 (50/90) | 78.8 (71/90) |
| 10月 | 77.7 (70/90) | 25.5 (23/90) | 75.5 (68/90) | ||||
| 11月 | 80 (72/90) | 70 (63/90) | 81.1 (73/90) | ||||
| 冬季 (12~2月) | 87 | 65 | 74.7% | 12月 | 68.9 (60/87) | 55.1 (48/87) | 65.5 (57/87) |
| 1月 | 70.1 (61/87) | 60.9 (53/87) | 67.8 (59/87) | ||||
| 2月 | 67.8 (59/87) | 62 (54/87) | 71.2 (62/87) | ||||