Tamed animals and health

[Grauen]

I have tamed animals with enough food and water and a place to sleep, but the health constantly goes down, what do I wrong ?

THX ...

[КрендельФигов]

Sometimes there is such a ‘bug’: if you put the water bowl and feeder too close to a wall or some object, then they cannot approach them to eat and drink. {usually such complaints arise because of this particular nuance}
In addition, just in case, if you have two pets, make them two feeders and water bowls.

[Gargoyle Girl]

Are they able to eat what you're setting down for them to eat?
Are you keeping them inside, away from predators and weather, or letting them roam around?
Did you allow enough room for them to reach the food and water? They can and often do block each other from reaching them if they're not placed in a good position. If you have a lot of them, make sure your barn is big and has more than one spot for everyone to eat from, and that the troughs are in the open where many animals can reach them.

Other than that, I can't think of what might be the problem.