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October 2, 2025FishesOpen Access

Assessment of Egg Yolk IgY Antibodies Against Live or Inactivated Aeromonas hydrophila for Polyvalent Passive Immunization in Goldfish (Carassius auratus)

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Authors

PCPan CuiJCJing ChenHXHuihui Xiao

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Overview

Experimental assessment shows IgY antibodies improve immune defense in goldfish, indicating benefits for aquaculture.

Key Points

  • IgY antibodies from live or inactivated A. hydrophila provide passive immune protection to goldfish against infections.
  • Passive immune protection rates showed significant improvement in phagocytosis and reduced bacterial concentration.
  • ELISA and qRT-PCR assessments demonstrated IgY's interaction with bacteria and effects on inflammatory factor expression.
  • Histopathology findings revealed that IgY anti-aeromonas treatment did not result in tissue damage in goldfish.

Cite This Study

Cui et al. (2025) studied this question.

synapsesocial.com/papers/68de5d9c83cbc991d0a203ffhttps://doi.org/10.3390/fishes10100491
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