球虫概述和常见球虫病详细内容2.ppt

病理变化判定 Score 4: The extent of the haemorrhages gives the intestine a dark colour: the intestinal contents consist of red or brown mucous. Distension may spread along the entire length of the intestine. Score 4 is assigned to dead birds. 病理变化判定 Score 4: The extent of the haemorrhages gives the intestine a dark colour: the intestinal contents consist of red or brown mucous. Distension may spread along the entire length of the intestine. Score 4 is assigned to dead birds. 鸡球虫 病理变化判定 Score 1: Small red petechiae may appear on the serous membrane of the middle intestine. There is no distension or thickening of the intestine, although small quantities of orange mucous may appear. 病理变化判定 Score 2: The serous membrane may be punctuated by numerous red petechiae. The intestine may be full of orange mucous and may or may not be distended. The intestinal wall is thickened. 病理变化判定 Score 2: The serous membrane may be punctuated by numerous red petechiae. The intestine may be full of orange mucous and may or may not be distended. The intestinal wall is thickened. 病理变化判定 Score 3: The intestine is distended and the wall is thickened. The mucous membrane is rough and the intestinal contents contain pinpoint clots and mucous. 病理变化判定 Score 3: The intestine is distended and the wall is thickened. The mucous membrane is rough and the intestinal contents contain pinpoint clots and mucous. 病理变化判定 Score 4: The intestinal wall may be distended throughout almost its entire length. The intestines contain numerous blood clots and digested red blood cells which give them a characteristic colour and putrid odour; the wall is greatly thickened. Score 4 is given to dead chickens. 病理变化判定 Score 4: The intestinal wall may be distended throughout almost its entire length. The intestines contain numerous blood clots and digested red blood cells which give them a characteristic colour and putrid odour; the wall is greatly thickened.