The etiology of cow parturi-tion force dystocia, bostetric-canal dys-tocia and fetal dystocia was analysed. Clinical symptoms and some relevant prevention and treatment measures were introduced to provide a reference for the prevention and treatment of reiter's dis-ease.%分析了奶牛产力性难产、产道性难产及胎儿性难产的病因，介绍了其临床症状及相关防治措施，为有效预防和救治奶牛难产提供参考。
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