早期断奶仔猪肠黏膜免疫力较低，容易遭受饲粮抗原的刺激而引起肠黏膜过敏性损伤，诱发仔猪断奶后腹泻。
The immune function of the early-weaned piglet is distempered, it is easy to be damaged and result in diarrhea.
因此为了提高机体对抗原的黏膜免疫力和系统免疫反应，不同类型黏膜免疫佐剂已悄然进入黏膜免疫的研究中。
In order to improve organism mucosal immunity and system immune response against the antigen, different kinds of mucosal immune adjuvant have been studied.
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