What is the distance that chicken can see in daylight?

That's an interesting question. Chickens are domesticated Red Jungle Fowl, which evolved in pretty dense habitats. Their visual requirements would mostly be for finding food and spotting predators. Given a dense habitat there would be no need for great long distance vision (like you'd need if you were a hunting hawk or eagle for example) so I expect a chicken would be considerably more short-sighted than a bird of prey. 

Of course, this is really a long way of saying 'I don't know' - this is what I would expect, but I don't know of any research that considers the visual range of chickens.