admin - 2009-3-23 13:31:00
支原体乳房炎
Mycoplasma Mastitis
Prepared by: Dr. Terry Hunt
Translated by Dr. Ren Xiaoling病因/发病机理
Cause & PathogenesisCause of acute highly contagious mastitis in dairy cowsRapidly spreads to all quarters and joints of cows (Systemic phase)Will spread to calves from infected milk causing pneumonia and arthritis危险因素
Risk Factors Introduction of carrier cows into herdUse of common mastitis syringe tube- 临床症状
Clinical Findings - 可能爆炸性爆发
May be explosive outbreaks- 引起严重乳房炎—牛奶呈黄褐色至棕色水样，有可以浮动的沙样絮片
Causes severe mastitis – milk watery tan-brown with sandy flakes that float- 仍有食欲 Cows continue to eat
- 治疗无效 No response to treatment
- 用标准的方法培养牛奶阴性Negative milk cultures using standard methods
诊断
Diagnosis - 牛群爆发涉及多数地方 Herd outbreak involving multiple quarters
- 治疗无效 No response to treatment
- 可涉及关节 May involve joints
- 特殊的牛奶培养技术 Special milk culture techniques
鉴别诊断
Differential Diagnosis- 其他原因引起的乳房炎 Other causes of mastitis
实验室和病理学诊断Laboratory and PathologyRequires special techniques to culture Mycoplasma 治疗
Treatment - 对治疗无效 Do not respond to treatment
预后情况
Prognosis - 牛只通常不死，但被淘汰 Cows do not usually die but are culled
后遗症 Sequelae- 无反应性的乳房炎 Non-responsive mastitis
- 关节炎、跛行 Arthritis & lameness
预防
Prevention & ControlSerial culture all cows and cullUse individual tubes for treating mastitisDo not feed infected milk to calves