[stinos]

grass feed beef/lamb, forage egg/chicken ... I buy a lamb from the farmer living next to my father

As far is 'happy cow' goes, there still can be a huge difference between both cases in how they live and die. Firstly, a 'grass fed' or 'forage chicken' label can cover a whole lot of different things. I don't know which country you're from, whether those are the official definitions nor what they mean. But I do know countries where something like 'forage chicken' depending on exact translation and law doesn't even mean they ever saw any daylight or living plants in their life. Just that they got like 1 square meter to live on instead of 1/4. But it doesn't end there. Take the grassfeeding: even if it actually means they could range free on nice green fields, from the moment production starts being all about the money and goes into the direction of industrial-scale it is unfortunately not unlikely their last hours on the way to and in the slaughterhouse were stress, torture and immense pain. Refer to e.g. the recent (very graphic) movie which popped up in Belgium where you could see what goes on in a slaughterhouses processing thousand of pigs a day and how far it deviated from what the laws for it prescribe.