What Are SPF Eggs?

SPF is the abbreviation of Specific Pathogen Free, meaning the absence of specified pathogens. SPF eggs are produced by hens raised under strict pathogen‑free conditions. As a critical raw material for vaccine production, SPF eggs must meet rigorous standards, including no drug residues, no antibiotics, no specified pathogens, and flocks with no history of disease.

SPF chicken embryos are highly susceptible to a wide range of pathogenic microorganisms and exhibit excellent experimental reproducibility, making them ideal for various virological studies, including virus isolation, culture, passage, and titration.

Key Applications

SPF eggs are essential for manufacturing human vaccines (influenza, mumps, rubella, yellow fever) and poultry vaccines, ensuring product safety and efficacy. In research, they provide a sensitive and reproducible model for virus isolation, culture, passage, and titration. They also serve as a standard substrate for biological product inspection and pharmaceutical testing.

Product Features

Our flocks consist of White Leghorn chickens, with continuous health monitoring to meet international standards. We supply over 17 million SPF eggs annually, with stable and consistently high quality recognized by our customers.