求翻译：通过调查还可以发现，免疫程序的混乱是造成免疫水平低下的最主要原因。大多数规模场和散养场均未按本场实际监测到的抗体水平制定相应的免疫程序，而是盲目套用免疫程序，肆意加大免疫剂量，使得免疫次数、免疫时间以及免疫剂量的确定都存在较大的随意性。除此之外，疫苗质量不合格、免疫工作不到位、采样时错误的操作、猪群自身存在的免疫缺陷，不科学的饲养管理等原因也会影响抗体水平。是什么意思？

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The survey also found that immunization procedures is the confusion caused by the most common reason why low immunization levels. Most casual breeding farms, and size are not based on actual monitoring to the present site of antibody levels of immunization procedures formulated by immunization proce

Also may discover through the investigation that, the immunization schedule confusion creates the immunity level low most primary cause.The majority gauge model field and frees-rang the field not according to the immune body level formulation corresponding immunization schedule which this monitors a

Through the survey also found that, confusion of the immunity program is the main reason for the low level of immunity. Most scale and backyard farms are not actual surveillance antibody levels corresponding to the immunity program, instead of blindly apply FIC wanton increased immune dosage, determ