经眼感染而非肠道感染时,哈德尔氏腺(Harderian glands)也出现相似的 抗体分泌。有研究认为,器官组织局部产生的类似IgA的抗体比循环抗体的渗出 能更有效地抑制病毒感染。
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There were many lymphoid nodules under lachrymal gland epithelia in-group A, and few of chickens had semitransparent bursa with jelly inside them at the location of removed Harderian glands.
组织学观察, A组泪腺上皮下有明显的淋巴小结,少数雏鸡原哈德氏腺部位出现含有胶状液体的半透明囊。
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