I think that one major difference between an egg and a chicken is the development. The fertilized egg will not begin to gestate till it is kept warm by either an incubator or the mother sitting on them. Then the cells will divide and an embryo will begin to develop into a chicken. Till then it's just an egg.
If she's concerned with treatment of chickens, I'm sure that she sees your chickens, or any backyard chickens, as well cared for. Check here for the definition of Veganism:
http://en.wikipedia.org/wiki/Vegan
Acording to this, Veganism is concerned with treatment, not what the product is.
If she's concerned with treatment of chickens, I'm sure that she sees your chickens, or any backyard chickens, as well cared for. Check here for the definition of Veganism:
http://en.wikipedia.org/wiki/Vegan
Acording to this, Veganism is concerned with treatment, not what the product is.