admin - 2009-3-23 13:26:00
牛疱疹乳头炎（溃疡性乳头炎）
Bovine Herpes Mammillitis (Ulcerative mammillitis)
德洪特博士供稿Prepared by: Dr. Terry Hunt
Translated by: Maria Mai
病因/发病机理
Cause & Pathogenesis
- 牛疱疹病毒 Bovine Herpes virus 2
- 家畜皮肤感染性疾病 Contagious skin disease of cattle
- 乳头皮肤严重溃疡 Severe ulceration of teat skin
- 发病率高但不会造成死亡High morbidity but no mortality
- 可产生免疫性 Develop immunity
危险因素
Risk Factors - 外来带病牛 Introduced carrier cows
- 昆虫 Insects
临床症状
Clinical Findings·
潜伏期：5 –10天
Incubation period of 5-10 days ·
初发于新产牛，逐渐蔓延到全群
Starts in freshly calved cows then spreads through herd
- 初产牛发病最严重 Most severe in fresh cows
- 急性、乳头肿胀、触痛 Acute, swollen tender teats
- 最初由水疱导致脱皮，进而形成严重溃疡
Vesicles formed then slough and form severe ulcers
·
形成深褐色或黑色结痂，然后可能开裂
Forms dark brown or black scabs that may crack
- 会感染乳头管 May involve the teat canal
- 造成减产 Decreased milk production
- 增加乳房炎发病率 Increased incidence of mastitis
- 约3-4个月可痊愈 May take 3-4 months to heal
诊断
Diagnosis - 有过病史和临床症状 History and clinical signs
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