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Formaldehyde Fumigation: Antibacterial Profile and Toxic Effects on Hatching Eggs
Pedro Henrique Gomes de Sá Santos1, Gabriel da Silva Oliveira1,2, Liz de Albuquerque Cerqueira1
1Faculty of Agronomy and Veterinary Medicine, University of Brasília, Brasília 70910-900, Brazil.
Toxics
|October 28, 2025
Summary
Formaldehyde (FA) fumigation of hatching eggs shows antibacterial effects but causes toxicity, impacting hatchability and chick health. Its use is questionable due to safety concerns and potential long-term harm.
Area of Science:
- Veterinary Science
- Animal Health
- Food Safety
Background:
- Formaldehyde (FA) fumigation is used for hatching eggs.
- Previous studies indicate FA's cytotoxic and genotoxic potential.
- In-depth studies on FA's effects on hatching eggs are limited.
Purpose of the Study:
- To investigate the antibacterial effects of FA fumigation on hatching eggs.
- To assess the potential toxicity of FA fumigation on egg hatchability and chick development.
Main Methods:
- Hatching eggs were fumigated with three FA concentrations: 2.5, 5, and 10 g/m³.
- Antibacterial activity was evaluated.
- Hatchability, embryotoxicity, and chick repercussions were assessed.
Main Results:
- FA demonstrated effective antibacterial activity at all tested concentrations.
- FA negatively impacted hatchability and caused embryotoxic effects.
- Adverse effects on chicks were observed, varying with FA concentration.
Conclusions:
- While FA has antibacterial properties, its use in hatching eggs poses significant toxicity risks.
- Observed embryotoxic effects and impact on chick quality question the overall benefit and safety of FA fumigation.
- Reconsideration of FA use is advised, prioritizing lower concentrations if unavoidable.
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