And if your chickens get high from the 0.3% limit for THC then good for them. I see everyone critiquing and expertly opining on the relative "flightiness" of chicken breeds around here, so why would you be against feeding them cannabis at all? Chickens also prefer reggae, so cut it out with the new country.
They can eat more than just the seeds by the way. Even cattle (ruminants) can eat the whole plant. It was completely legal for a farmer to grow until 90 years ago, but we'll not get into all the particulars on a non-political forum. Suffice it to say that the reason it's not more widely grown now has nothing to do with its inherent danger as a feed for livestock.
CBD isn't bad for chickens (or you). Just because a crop is "industrial" doesn't mean it couldn't be "organic" (if you care about these kinds of words). The real problem is that people are not used to using hemp seed to the point that they resist even considering it's use in light of its latin name. Cannabis! Oooooooo! That or they think it's too hard to get, which it's really not if you try. Or it's too expensive, and I hope that will change (I think it will).
I got 100 lbs for $100 and it's 10% of my ration. I started day-old chicks on it day 1 of receiving them. Maybe they're high, I don't know. I do know that their feathers are extra shiny and they like reggae. They also requested that they not be fed flax seed because they wanted their eggs to taste right. That's all I'm saying. (That and I like to use parentheses too much).