|Eggs from our chickens. Left is after feeding dandelions. 3.31.16|
Maybe it's my imagination, but the yolk on the left looks more deeply colored, compared to the other two. The one on the left was laid today, the two on the right were laid 3 days ago. Since the hens are free range, the 2 eggs on the right probably contain some yard weed nutrients, but not as much. Their yard is mostly grass, almost no weeds due to their feeding and scratching.
The hens like the dandelions and eat a pile down to nothing in an afternoon. We have enough dandelions for many more buckets of feed. Feeding dandelion greens may also slightly decrease the cost of feed, depending on whether the greens replace some of the feed grain. In my yard, they are totally organic, no pesticides or herbicides at all.