I hate to burst the righteous bubble, but this is nothing new, at least in terms of statute. Many localities forbid the possession of farm animals within their boundaries. Maybe this new ruling is not relevant to my point, but it is my point and I'm sticking to it.
You are referring to zoning laws. These do not limit your right to own a cow, merely where you can possess it. There are no zoning laws that limit your right to own.