犬吉氏巴贝斯虫,虫体小,直径约1~3.3μm,形状多呈环形或椭圆形,寄生于犬的红细胞内可造成犬溶血性贫血和黄疸等,患犬感染初期,血液涂片经瑞士染色或吉姆萨染色可见虫体呈深紫色。本病常呈现慢性过程,初期发热持续3~5d,随后又恢复体温正常,呈现不规则回归热。临床表现四肢无力,不愿活动,高度贫血、结膜苍白和血红蛋白尿等。笔者于2012年5月诊治一例杂交狼犬的吉 Canis sylvestris Babesia insects, parasites small, about 1 ~ 3.3μm in diameter, the shape of mostly ring or oval, parasitic in the dog’s red blood cells can cause canine hemolytic anemia and jaundice, suffering from dog infection, blood smears By Swiss staining or Giemsa staining showed parasites were purple. The disease often presents a chronic process, the initial fever lasts 3 ~ 5d, and then returned to normal body temperature, showing irregular return to heat. Clinical manifestations of limb weakness, unwilling activity, a high degree of anemia, pale conjunctiva and hemoglobinuria. The author in May 2012 to diagnose a case of crossbreed dogs