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概括羊常见寄生虫病的种类,阐述寄生虫病感染途径及其特点,介绍常见寄生虫病的症状和治疗方法,并提出应如何预防羊寄生虫病的感染。
Summarize the types of common parasitic diseases in sheep, explain the ways and characteristics of parasitic diseases, introduce the symptoms and treatment methods of common parasitic diseases, and put forward how to prevent the infection of parasitic diseases of sheep.