Cows need to be impregnated by introducing an arm in their anus and holding their cervix so they can introduce a rod with semen in their uterus.
Male cows and chickens are useless to the industry so they usually get killed soon after birth.
Chickens usually are kept in cages the size of an A4 paper, cows also usually are very badly treated in order to be milked. Check out https://3minutes.wtf/ so you can see that even what the industry calls the “best animal treatment” is still very inhumane.
Males are still killed at 1 day old.
Domesticated chickens were bred to lay about 1 egg a day when their wild counterpart lay about 1 egg per month. That’s a huge toll on their body.
You seem to care and go out of your way to avoid needless suffering. Fortunately it’s easy to stop supporting animal exploitation.