Blue eggshell gene testing identifies whether a bird carries the genetic markers responsible for producing blue or blue-tinted eggs. This DNA-based test detects the presence of the O (oocyan) gene and provides results as homozygous positive, heterozygous, or homozygous negative. These clear genetic outcomes help breeders understand their birds’ inheritance patterns, make informed breeding decisions, and reliably predict future eggshell colour potential.

Sample Collection

For best results, label paper envelopes with the sample number, species and bird ID printed on our order form. Place 2-3 freshly plucked feathers greater than 3cm in length, from each bird into each envelope. Alternatively, blood spotted on card can be provided. Allow any blood at the tip of the feather’s calamus, or on card, to dry before placing in the envelope.

How to Order

Click here – 2025 Avian DNA Testing Order Form

Please contact us prior to sending samples from outside of New Zealand.