Historical estimate

A double-yolk egg from young hens

Probability:
2%
Odds:
1 to 49
dBan
−16.9 dBan

A production study reports about two double-yolk eggs per 100 eggs from young commercial laying hens near the onset of lay.

Calculation

p ≈ 0.02

Assumptions

The estimate applies to young laying hens near the onset of production. Age, genetics, diet, flock management, and egg sorting change the rate, so it is not a universal supermarket-egg probability.

Sources

  1. Flock, Cavero and Simons: double-yolk eggs in laying hens production estimate published 2017
  2. Lohmann Breeders: double-yolk eggs