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1病因分析奶牛乳房炎是乳腺受到物理、化学、微生物等刺激所发生的一种炎性变化,是一种多因素所引发的疾病。其中,微生物入侵是主要原因,另外还有遗传因素(如易感染、乳头的形状与形态等)、环境因素(舍饲密度、垫料、牛床等)、营养因素、管理因素(饲料、机器挤乳、工作人员消毒及挤奶不全面等)、生理和行为因素(机体免疫力、创伤等)及药物因素等。1.1病原微生物感染病原微生物入侵乳头管是引起乳房炎的主要原因,目前,已经发现约有150多种病原
An etiology analysis Mastitis is a kind of inflammatory change that occurs in the mammary glands stimulated by physical, chemical and microbiological factors. It is a multifactorial disease caused by mastitis. Among them, microbial invasion is the main reason, in addition to genetic factors (such as susceptible to infection, the nipple shape and morphology, etc.), environmental factors (shedding density, litter, cattle bed, etc.), nutritional factors, management factors Milking milk, staff disinfection and milking incomplete), physical and behavioral factors (immunity, trauma, etc.) and drug factors. 1.1 pathogenic microorganisms invade the pathogen invade the teat tube is the main cause of mastitis, at present, it has been found that there are about 150 kinds of pathogens