If you want to purchase eggs laid by chickens that were fed a purely plant-based diet, then look for Vegetarian eggs at your local grocery store.
The egg, obviously! Of course, the Alberta Chicken Producers probably have a different opinion!
Take a look at the video below to find your answer!
The colour of an egg’s yolk depends on what the hens eat. In western Canada, most hens eat a wheat-based diet, which results in lighter yellow yolks. In eastern Canada, most hens eat a corn-based diet, which results in darker colour yolks. If hens have outdoor access where they can eat grass, bugs and anything else they can get their beaks on, the yolks tend to be darker. Farmers can modify the composition of the hens’ feed to help those hens produce eggs with a particular colour yolk. Egg yolk colours are measured and some restaurants will only purchase eggs that have a certain colour range, to ensure the eggs they serve are consistent in colour, year round.
EFA and the province's egg farmers would be happy to answer some questions for you!