This is not being "treated properly" by the standards of a good society. Unhealthy cramped conditions for chickens have already been pinpointed for the spread of "bird flu" in Asia.
Engage your compassion. If you don't have any for the lesser creatures (uh, products) of this planet, then you still have a long way to go. I wish you luck in your journey.
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Starving a veal calf of iron to keep it deliberately anemic is inhumane.
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In precisely what way? Sickness? Nope. That would ruin the meat. Anemia isn't harmful unless it goes on for a long time. In calves being raised for veal, they aren't alive long enough to suffer ill effects. It would ruin the meat. Try again.
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Starving chickens for two weeks so that their feathers fall off to get one more batch of eggs out of them is inhumane.
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When chickens stop laying, they are sold for meat. Chickens who have been starved until their feathers fall off don't provide good quality meat. You've fallen for a lie.
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Force feeding ducks to abnormally enlarge their livers is inhumane.
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Torturous force feeding would ruin the liver's quality as meat. You've fallen for another lie.
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Engage your compassion.
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My compassion is just fine and in its proper place, complementing my reason, not replacing it.