Using a polyethylene glycol precipitation method, we efficiently extract IgY antibodies from egg yolks. Since egg yolks have a limited storage lifespan, we recommend purifying IgY for long-term storage and stability. Following IgY purification, our standard affinity purification protocol can be employed to further enhance purity and specificity as needed for your applications. Trust PRF&L to deliver high-quality IgY purification services, enabling you to maximize the utility of your egg yolk samples for antibody production and research purposes. The IgY can be then affinity purified using our usual affinity purification protocol.