The local alimentary canals of the immunized chickens were showed humoral immune response obviously by the cloacal, the content of IgA in intestinal fluid was higher than that by the nasal, oral, the difference was not significance.

  • 泄殖腔免疫后,消化道局部早现明显的体液免疫应答,肠液中,IgA含量高于滴鼻组、饮水组,但差异不显著(P0.05)。

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