M-J-G
Member
It's called prevention, which I find preferable to fire fighting.She already has a calf. Unless you have a Tardis you have to deal with what's in front of you.
You asked what I would do with her calf, personally, the type of cow that needs dry cow tubes to keep unsucked quarters healthy wouldn't be here in the first place so wouldn't have a calf.
Go to a commercial herd in NZ or America and see how many cows get stripped out and DC tubed because the calf isn't sucking a teat.
In this instance, I would leave the OPs cow alone but maybe shift her somewhere with less grass and use some fly prevention.
If she gets mastitis I'd cull her in the autumn as she's not a functional type for her environment.
Why make life difficult.