Again the way they deal with animals is wrong. Aside from that Idle I think you are wrong to say animals aren't intelligent enough. There's an elephant that can paint paintings, but Its vocal cords haven't developed enough to allow it the ability to communicate the way we do, and yet Ms Tennessee can give a speech like that and well you know. Its not about intelligence there, more or less anatomy.
Notice they all communicate in the way their vocal cords have developed a cow moos a duck quacks etc. And that is speech to them. To animals we could be the idiots. We just have opposable thumbs.
I think that it wouldn't kill them to not chuck the chicks, or break the cows leg to make it move. The mass production of meat however I can live with. but I mean harming them for no good reason is what annoys me.